FORD GALAXY 2006 Service Manual PDF

Noise, \bibra\fion and Harshness - Noise,
\bibra\fion and Harshness (N\bH)S-MAX/G\bl\bxy\f2006.5\f(02/2006-)\fPrint \f
Diagnosis and Tes\fing
Inspec\fion and \berifica\fion
1. 1.
Verify\fthe\fcustomer\fconcern.\f
2

. 2.
Visu\blly\finspect\ffor\fobvious\fsigns\fof\fmech\bnic\bl\for\felectric\bl\fd\bm\bge.\f
3

. 3.
If\f\bn\fobvious\fc\buse\ffor\f\bn\fobserved\for\freported\fconcern\fis\ffound,\fcorrect\fthe\fc\buse\f
(if\fpossible)\fbefore\fproceeding\fto\fthe\fnext\fstep.\f
4. 4.
If\fthe\fconcern\fis\fnot\fvisu\blly\fevident,\fverify\fthe\fsymptom\f\bnd\fREFER\fto\fthe\f
S
ymptom\fCh\brt.\f
How \fo Use \fhis Diagnos\fic Procedure Sec\fion

Noise,\fvibr\btion\f\bnd\fh\brshness\f(NVH)\fconcerns\fh\bve\fbecome\fmore\fimport\bnt\f\bs\fvehicles\f
h\bv

e\fbecome\fmore\fsensitive\fto\fthese\fvibr\btions.\fThis\fsection\fis\fdesigned\fto\f\bid\fin\f
identifying\fthese\fconcerns.\f\f

The\fsection\fprovides\fdi\bgnostic\fprocedures\fb\bsed\fon\fsymptom.\fIf\fthe\fcondition\foccurs\f\bt\f
high\fspeed,\ffor\finst\bnce,\fthe\fmost\flikely\fpl\bce\fto\fst\brt\fis\funder\fSh\bke\f\bnd\fVibr\btion\fWhile\f
Driving.\f\f

The\fro\bd\ftest\fprocedure\fwill\ftell\fhow\fto\fsort\fthe\fconditions\finto\fc\btegories\f\bnd\fhow\fto\ftell\f
\b\fv

ibr\btion\ffrom\f\b\fsh\bke.\f\f

A\fseries\fof\fRo\bd\fTest\fQuick\fChecks\f\bre\fprovided\fto\fm\bke\fsure\fth\bt\f\b\fc\buse\fis\feither\f
pi

npointed\for\felimin\bted.\f\f

N\bme\fthe\fcondition,\fproceed\fto\fthe\f\bppropri\bte\fsection\f\bnd\floc\bte\fthe\fcorrect\fdi\bgnosis.\f
Wh

en\fthe\fcondition\fis\fidentified,\fthe\fjob\fis\fp\brtly\fdone.\f\f

Follow\fthe\fdi\bgnostic\fprocedure\f\bs\foutlined.\f\f

Quick\fChecks\f\bre\fdescribed\fwithin\fthe\fstep,\fwhile\fmore\finvolved\ftests\f\bnd\f\bdjustments\f
\bre

\foutlined\fin\fGener\bl\fProcedures.\f\f

Alw\bys\ffollow\fe\bch\fstep\fex\bctly\f\bnd\fm\bke\fnotes\fto\frec\bll\fimport\bnt\ffindings\fl\bter.\f
Cus\fomer In\ferview
The\fro\bd\ftest\f\bnd\fcustomer\finterview\f(if\f\bv\bil\bble)\fprovide\finform\btion\fth\bt\fwill\fhelp\f
i d

entify\fthe\fconcern\f\bnd\fwill\fprovide\fdirection\fto\fthe\fcorrect\fst\brting\fpoint\ffor\fdi\bgnosis.\f
Iden\fify \fhe Condi\fion
NVH\fusu\blly\foccur\fin\ffour\f\bre\bs:\f

tires\f\f

engine\f\bccessories\f\f

suspension\f\f

driveline\f
It\fis\fimport\bnt,\ftherefore,\fth\bt\f\bn\fNVH\fconcern\fbe\fisol\bted\finto\fits\fspecific\f\bre\b(s)\f\bs\fsoon\f
\bs
\fpossible.\fThe\fe\bsiest\f\bnd\fquickest\fw\by\fto\fdo\fthis\fis\fto\fc\brry\fout\fthe\fRo\bd\fTest\f\bs\f
outlined.\fTo\f\bssist\fin\fthe\fdi\bgnosis\f\bnd\ftesting\fprocedure(s),\fuse\f\b\fsuit\bble\f\bpproved\fNVH\f
di\bgnosis\ftester.\f
Noise Diagnos\fic Procedure
Non-Axle Noise
The\ffive\fmost\fcommon\fsources\fof\fnon-\bxle\fnoise\f\bre\fexh\bust,\ftires,\froof\fr\bcks,\ftrim\fp\bnels\f
\b n

d\ftr\bnsmission.\f
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04.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G37349&guid...procarmanuals.com
http://vnx.su

Therefore,\fm\bke\fsure\fth\bt\fnone\fof\fthe\ffollowing\fconditions\f\bre\fthe\fc\buse\fof\fthe\fnoise\f
before\fproceeding\fwith\f\b\fdriveline\fte\brdown\f\bnd\fdi\bgnosis.\f
In\fcert\bin\fconditions,\fthe\fpitch\fof\fthe\fexh\bust\fm\by\fsound\fvery\fmuch\flike\fge\br\fnoise.\fAt\f
ot

her\ftimes,\fit\fc\bn\fbe\fmist\bken\ffor\f\b\fwheel\fbe\bring\frumble.\f\f

Tires,\fespeci\blly\fsnow\ftires,\fc\bn\fh\bve\f\b\fhigh\fpitched\ftre\bd\fwhine\for\fro\br,\fsimil\br\fto\fge\br\f
no

ise.\fR\bdi\bl\ftires\fm\by\fh\bve\fthis\fch\br\bcteristic.\fAlso,\f\bny\fnon-st\bnd\brd\ftire\fwith\f\bn\f
unusu\bl\ftre\bd\fconstruction\fm\by\femit\f\b\fro\br\for\fwhine\fnoise.\f\f

Trim\fp\bnels\fc\bn\f\blso\fc\buse\fwhistling\for\fwhining\fnoise.\f\f

Clunk\fm\by\fbe\f\b\fmet\bllic\fnoise\fhe\brd\fwhen\fthe\f\butom\btic\ftr\bns\bxle\fis\feng\bged\fin\f
"R

"\f(REVERSE)\for\f"D"\f(DRIVE)\for\fit\fm\by\foccur\fwhen\fthe\fthrottle\fis\f\bpplied\for\frele\bsed.\fIt\f
is\fc\bused\fby\fb\bckl\bsh\fsomewhere\fin\fthe\fdriveline.\f\f

Be\bring\frumble\fsounds\flike\fm\brbles\fbeing\ftumbled.\fThis\fcondition\fis\fusu\blly\fc\bused\fby\f\b\f
d\bm

\bged\fwheel\fbe\bring.\f
Noise Condi\fions

Ge\br\fnoise\fis\ftypic\blly\f\b\fhowling\for\fwhining\fdue\fto\fge\br\fd\bm\bge\for\fincorrect\fbe\bring\f
pr

elo\bd.\fIt\fc\bn\foccur\f\bt\fv\brious\fspeeds\f\bnd\fdriving\fconditions,\for\fit\fc\bn\fbe\fcontinuous.\f\f

Chuckle\fis\f\b\fp\brticul\br\fr\bttling\fnoise\fth\bt\fsounds\flike\f\b\fstick\f\bg\binst\fthe\fspokes\fof\f\b\f
sp

inning\fbicycle\fwheel.\fIt\foccurs\fwhile\fdeceler\bting\ffrom\f64\fkm/h\f(40\fmph)\f\bnd\fc\bn\f
usu\blly\fbe\fhe\brd\f\bll\fthe\fw\by\fto\f\b\fstop.\fThe\ffrequency\fv\bries\fwith\fvehicle\fspeed.\f\f

Knock\fis\fvery\fsimil\br\fto\fchuckle,\fthough\fit\fm\by\fbe\flouder\f\bnd\foccurs\fon\f\bcceler\btion\for\f
de

celer\btion.\fThe\fte\brdown\fwill\fdisclose\fwh\bt\fh\bs\fto\fbe\fcorrected.\f
Clicking,\fpopping\for\fgrinding\fnoises\fm\by\fbe\fc\bused\fby\fthe\ffollowing:\f
worn,\fd\bm\bged\for\fincorrectly\finst\blled\fwheel\fbe\bring,\fsuspension\for\fbr\bke\fcomponent.\f
Check\f\bnd\frule\fout\ftires,\fexh\bust\f\bnd\ftrim\fitems\fbefore\fdis\bssembling\fthe\ftr\bnsmission\fto\f
di
\bgnose\f\bnd\fcorrect\fge\br\fnoise.\f
The\fnoises\fdescribed\funder\fRo\bd\fTest\fusu\blly\fh\bve\fspecific\fc\buses\fth\bt\fc\bn\fbe\fdi\bgnosed\f
by\fobserv\btion\f\bs\fthe\funit\fis\fdis\bssembled.\fThe\finiti\bl\fclues\f\bre\fthe\ftype\fof\fnoise\fhe\brd\fon\f
the\fro\bd\ftest\f\bnd\fdriving\fconditions.\f
\bibra\fion Condi\fions
Vibr\btion\f\bt\fhighw\by\fspeeds\fm\by\fbe\fc\bused\fby\fthe\ffollowing:\f

out-of-b\bl\bnce\ffront\for\fre\br\fwheels.\f\f

out-of-round\ftires.\f
Shudder\for\fvibr\btion\fduring\f\bcceler\btion\fm\by\fbe\fc\bused\fby\fthe\ffollowing:\f
d\bm\bged\fpowertr\bin/drivetr\bin\fmounts.\f\f

excessively\fhigh\fconst\bnt\fvelocity\f(CV)\fjoint\foper\bting\f\bngles\fc\bused\fby\fincorrect\fride\f
he

ight.\fCheck\fride\fheight,\fverify\fcorrect\fspring\fr\bte\f\bnd\fcheck\fitems\funder\finoper\btive\f
conditions.\f
Road Tes\f
A\f
ge\br-driven\funit\fwill\fproduce\f\b\fcert\bin\f\bmount\fof\fnoise.\fSome\fnoise\fis\f\bccept\bble\f\bnd\f
m\by\fbe\f\budible\f\bt\fcert\bin\fspeeds\for\funder\fv\brious\fdriving\fconditions,\f\bs\fon\f\b\fnewly\fp\bved\f
\bsph\blt\fro\bd.\fThe\fslight\fnoise\fis\fin\fno\fw\by\fdetriment\bl\f\bnd\fmust\fbe\fconsidered\fnorm\bl.\f
The\fro\bd\ftest\f\bnd\fcustomer\finterview\f(if\f\bv\bil\bble)\fprovide\finform\btion\fneeded\fto\fidentify\f
the\fcondition\f\bnd\fgive\fdirection\fto\fthe\fcorrect\fst\brting\fpoint\ffor\fdi\bgnosis.\f
1. 1.
M\bke\fnotes\fthroughout\fthe\fdi\bgnosis\froutine.\fM\bke\fsure\fto\fwrite\fdown\feven\fthe\f
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04.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G37349&guid...procarmanuals.com
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sm\bllest\fbit\fof\finform\btion,\fbec\buse\fit\fm\by\fturn\fout\fto\fbe\fthe\fmost\fimport\bnt.\f
2. 2.
Do\fnot\ftouch\f\bnything\funtil\f\b\fro\bd\ftest\f\bnd\f\b\fthorough\fvisu\bl\finspection\fof\fthe\f
v
ehicle\fh\bve\fbeen\fc\brried\fout.\fLe\bve\fthe\ftire\fpressures\f\bnd\fvehicle\flo\bd\fjust\fwhere\f
they\fwere\fwhen\fthe\fcondition\fw\bs\ffirst\fobserved.\fAdjusting\ftire\fpressures,\fvehicle\f
lo\bd\for\fm\bking\fother\f\bdjustments\fm\by\freduce\fthe\fcondition(s)\fintensity\fto\f\b\fpoint\f
where\fit\fc\bnnot\fbe\fidentified\fcle\brly.\fIt\fm\by\f\blso\finject\fsomething\fnew\finto\fthe\f
system,\fpreventing\fcorrect\fdi\bgnosis.\f
3. 3.
M\bke\f\b\fvisu\bl\finspection\f\bs\fp\brt\fof\fthe\fprelimin\bry\fdi\bgnosis\froutine,\fwriting\fdown\f
\b
nything\fth\bt\fdoes\fnot\flook\fright.\fNote\ftire\fpressures,\fbut\fdo\fnot\f\bdjust\fthem\fyet.\f
Note\fle\bking\ffluids,\floose\fnuts\f\bnd\fbolts,\for\fbright\fspots\fwhere\fcomponents\fm\by\fbe\f
rubbing\f\bg\binst\fe\bch\fother.\fCheck\fthe\flo\bd\fsp\bce\ffor\funusu\bl\flo\bds.\f
4. 4.
Ro\bd\ftest\fthe\fvehicle\f\bnd\fdefine\fthe\fcondition\fby\freproducing\fit\fsever\bl\ftimes\f
d
uring\fthe\fro\bd\ftest.\f
5. 5.
C\brry\fout\fthe\fRo\bd\fTest\fQuick\fChecks\f\bs\fsoon\f\bs\fthe\fcondition\fis\freproduced.\fThis\f
w
ill\fidentify\fthe\fcorrect\fdi\bgnostic\fprocedure.\fC\brry\fout\fthe\fRo\bd\fTest\fQuick\fChecks\f
more\fth\bn\fonce\fto\fverify\fthey\f\bre\fproviding\f\b\fv\blid\fresult.\fRemember,\fthe\fRo\bd\f
Test\fQuick\fChecks\fm\by\fnot\ftell\fwhere\fthe\fconcern\fis,\fbut\fthey\fwill\ftell\fwhere\fit\fis\f
not.\f
Road Tes\f Quick Checks
1. 1.
24-80\fkm/h\f(15-50\fmph):\fwith\flight\f\bcceler\btion,\f\b\fmo\bning\fnoise\fis\fhe\brd\f\bnd\f
p
ossibly\f\b\fvibr\btion\ffelt\fin\fthe\ffront\ffloor\fp\bnel.\fIt\fis\fusu\blly\fworse\f\bt\f\b\fp\brticul\br\f
engine\fspeed\f\bnd\f\bt\f\b\fp\brticul\br\fthrottle\fsetting\fduring\f\bcceler\btion\f\bt\fth\bt\fspeed.\fIt\f
m\by\f\blso\fproduce\f\b\fmo\bning\fsound,\fdepending\fon\fwh\bt\fcomponent\fis\fc\busing\fit.\f
REFER\fto\fTip-in\fMo\bn\fin\fthe\fDriveline\fNoise\f\bnd\fVibr\btion\fSymptom\fCh\brt.\f
2. 2.
Acceler\btion/Deceler\btion:\fWith\fslow\f\bcceler\btion\f\bnd\fdeceler\btion,\f\b\fsh\bke\fis\f
s
ometimes\fnoticed\fin\fthe\fsteering\fwheel/column,\fse\bts,\ffront\ffloor\fp\bnel,\ffront\fdoor\f
trim\fp\bnel\for\ffront\fend\fsheet\fmet\bl.\fIt\fis\f\b\flow\ffrequency\fvibr\btion\f(\bround\f9-15\f
cycles\fper\fsecond).\fIt\fm\by\for\fm\by\fnot\fbe\fincre\bsed\fby\f\bpplying\fthe\fbr\bkes\flightly.\f
REFER\fto\fIdle\fBoom/Sh\bke/Vibr\btion\fin\fthe\fDriveline\fNoise\f\bnd\fVibr\btion\fSymptom\f
Ch\brt.\f
3. 3.
High\fSpeed:\fA\fvibr\btion\fis\ffelt\fin\fthe\ffront\ffloor\fp\bnel\for\fse\bts\fwith\fno\fvisible\f
s
h\bke,\fbut\fwith\f\bn\f\bccomp\bnying\fsound\for\frumble,\fbuzz,\fhum,\fdrone\for\fbooming\f
noise.\fCo\bst\fwith\fthe\fclutch\fped\bl\fdepressed\f(m\bnu\bl\ftr\bnsmission)\for\fshift\fcontrol\f
selector\flever\fin\f"N"\f(NEUTRAL)\f(\butom\btic\ftr\bnsmission)\f\bnd\fengine\fidling.\fIf\f
vibr\btion\fis\fstill\fevident,\fit\fm\by\fbe\frel\bted\fto\fwheels,\ftires,\ffront\fbr\bke\fdiscs,\fwheel\f
hubs\for\ffront\fwheel\fbe\brings.\fREFER\fto\fSh\bke\f\bnd\fVibr\btion\fWhile\fDriving\fin\fthe\f
Driveline\fNoise\f\bnd\fVibr\btion\fSymptom\fCh\brt.\f
4. 4.
Engine\frpm\fSensitive:\fA\fvibr\btion\fis\ffelt\fwhenever\fthe\fengine\fre\bches\f\b\fp\brticul\br\f
rpm.\fIt\fwill\fdis\bppe\br\fin\fneutr\bl\fco\bsts.\fThe\fvibr\btion\fc\bn\fbe\fduplic\bted\fby\foper\bting\f
the\fengine\f\bt\fthe\fproblem\frpm\fwhile\fthe\fvehicle\fis\fst\btion\bry.\fIt\fc\bn\fbe\fc\bused\fby\f
\bny\fcomponent,\ffrom\fthe\f\bccessory\fdrive\fbelt\fto\fthe\fclutch\for\ftorque\fconverter\f
which\fturns\f\bt\fengine\fspeed\fwhen\fthe\fvehicle\fis\fstopped.\fREFER\fto\fSh\bke\f\bnd\f
Vibr\btion\fWhile\fDriving\fin\fthe\fDriveline\fNoise\f\bnd\fVibr\btion\fSymptom\fCh\brt.\f
5. 5.
Noise\f\bnd\fVibr\btion\fWhile\fTurning:\fClicking,\fpopping\for\fgrinding\fnoises\fm\by\fbe\f
d
ue\fto\fthe\ffollowing:\f

worn,\fd\bm\bged\for\fincorrectly\finst\blled\ffront\fwheel\fbe\bring.\f\f
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d\bm\bged\fpowertr\bin/drivetr\bin\fmounts.\f
Road Condi\fions
An
\fexperienced\ftechnici\bn\fwill\f\blw\bys\fest\bblish\f\b\froute\fth\bt\fwill\fbe\fused\ffor\f\bll\fNVH\f
di\bgnosis\fro\bd\ftests.\fThe\fro\bd\fselected\fshould\fbe\fre\bson\bbly\fsmooth,\flevel\f\bnd\ffree\fof\f
undul\btions\f(unless\f\b\fp\brticul\br\fcondition\fneeds\fto\fbe\fidentified).\fA\fsmooth\f\bsph\blt\fro\bd\f
th\bt\f\bllows\fdriving\fover\f\b\fr\bnge\fof\fspeeds\fis\fbest.\fGr\bvel\for\fbumpy\fro\bds\f\bre\funsuit\bble\f
bec\buse\fof\fthe\f\bddition\bl\fro\bd\fnoise\fproduced.\fOnce\fthe\froute\fis\fest\bblished\f\bnd\f
consistently\fused,\fthe\fro\bd\fnoise\fv\bri\bble\fis\felimin\bted\ffrom\fthe\ftest\fresults.\f
NOTE:\fSome\fconcerns\fm\by\fbe\f\bpp\brent\fonly\fon\fsmooth\f\bsp
h\blt\fro\bds.\f
If\f\b\fcustomer\fcompl\bins\fof\f\b\fnoise\for\fvibr\btion\fon\f\b\fp
\brticul\br\fro\bd\f\bnd\fonly\fon\f\b\fp\brticul\br\f
ro\bd,\fthe\fsource\fof\fthe\fconcern\fm\by\fbe\fthe\fro\bd\fsurf\bce.\fIf\fpossible,\ftry\fto\ftest\fthe\fvehicle\f
on\fthe\fs\bme\ftype\fof\fro\bd.\f
\behicle Prepara\fion
C\brry\fout\f\b\fthorough\fvisu\bl\finspection\fof\fthe\fvehicle\fbefore\fc\brrying\fout\fthe\fro\bd\ftest.\fNote\f
\bnything\fwhich\fis\funusu\bl.\fDo\fnot\frep\bir\for\f\bdjust\f\bny\fcondition\funtil\fthe\fro\bd\ftest\fis\f
c\brried\fout,\funless\fthe\fvehicle\fis\finoper\btive\for\fthe\fcondition\fcould\fpose\f\b\fh\bz\brd\fto\fthe\f
technici\bn.\fAfter\fverifying\fth\bt\fthe\fcondition\fh\bs\fbeen\fcorrected,\fm\bke\fsure\f\bll\fcomponents\f
removed\fh\bve\fbeen\finst\blled.\f
Power S\feering Condi\fions
Check\ffor\fthe\fnoise\fin\fthe\ffollowing\fconditions\fto\fverify\fthe\fcustomer\fconcern.\f

Check\ffor\fthe\fnoise\fin\fsever\bl\ftemper\bture\fconditions.\f\f

Is\fthe\fnoise\ffrom\fwhen\fthe\fvehicle\fw\bs\fnew?\f\f

C\bn\fthe\fnoise\fbe\frepe\bted\fconst\bntly\for\fis\fit\fr\bndom?\f\f

Check\fthe\fcondition\fof\fthe\fvehicle\f\bge,\fmile\bge\f\bnd\fservice\frecord.\f\f

Interview\fthe\fcustomer\fto\ffind\fthe\foper\bting\fcondition\fin\fwhich\fthe\fnoise\fwill\foccur.\fTest\f
th

e\fvehicle\fb\bsed\fon\fthe\fdet\bil(s)\ffrom\fthe\fcustomer\finterview.\f\f

Follow\fthe\fpower\fsteering\foper\btion\fnoise\fcondition\ft\bbles\fbelow,\fto\ffind\fwhich\fcondition\f
th

e\fnoise\fwill\foccur.\f
Power S\feering Opera\fion Noise Check
S t

ep\f1:\fCheck\ffor\fNVH\fconcerns\ffrom\fnon-steering\fcomponents,\fwhich\fm\by\fsound\flike\f
noises\fcoming\ffrom\fthe\fsteering\fsystem.\f
N\bH concerns from o\fher componen\fs
Power a\b\bi\bted \bteeri\fg operati\fg co\fditio\f
Parki\fgDrivi\fg
Steering\fcentr\bl/slightly\f
off\fcenterSteering\f\bt\f\b\fsteering\f
lock\fstopDriving\fstr\bight\f\bhe\bdCornering\fcondition
REFER\fto\fNVH\fconcerns\f
from\fother\fcomponents\f
column\fAREFER\fto\fNVH\f
concerns\ffrom\fother\f
components\fcolumn\fBREFER\fto\fNVH\f
concerns\ffrom\fother\f
components\fcolumn\fCREFER\fto\fNVH\f
concerns\ffrom\fother\f
components\fcolumn\fD
NVH co\fcer\f\b from other co\fditio\f (colum\f A to D)
Noi\beDrivi\fg Co\fditio\fABCD
Ped\bl\fbox\fknockingDrive\foff,\fstop\fdriving\f\bnd\fslow\fcornering\fover\f
uneven\fro\bdsXXOX
St\bbilizer\fb\br\flink\fknockingDrive\foff,\fdriving\f\bnd\fcorneringXOOX
Engine\fsupport\finsul\btor\fknockingDrive\foff,\fdriving,\f\bcceler\btion\f\bnd\fdeceler\btionXX
Air\fconditioning\fknockingEngine\fon,\f\bctiv\bte\fswitch\ffor\f\bir\fconditioningXXOO
Suspension\fknocking\f(Subfr\bme,\f
Springs)Drive\foff,\fdriving,\fcornering,\f\bcceler\btion\f\bnd\f
deceler\btionXOX
Const\bnt\fvelocity\f(CV)\fjoint\fDrive\foff,\fdriving,\fcornering,\f\bcceler\btion\f\bnd\fXOX
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http://vnx.su

X\f=\fNoise\fwill\fmost\flikely\foccur\fin\fthis\foper\bting\fcondition.\f\f

O\f=\fNoise\fc\bn\fpossibly\foccur\fin\fthis\foper\bting\fcondition.\f\f

Bl\bnk\f=\fNoise\fis\funlikely\fto\foccur\fin\fthis\foper\bting\fcondition.\f
Step\f2:\fCheck\ffor\fsteering\fsystem\fNVH\fconcerns\f\bccording\fto\foper\btion\fcondition\fdescribed\f
\bt
\fthe\fcustomer\finterview.\f
S\feering sys\fem N\bH concerns

X\f=\fNoise\fwill\fmost\flikely\foccur\fin\fthis\foper\bting\fcondition.\f\f

O\f=\fNoise\fc\bn\fpossibly\foccur\fin\fthis\foper\bting\fcondition.\f\f

Bl\bnk\f=\fNoise\fis\funlikely\fto\foccur\fin\fthis\foper\bting\fcondition.\f
Step\f3:\fAccording\fto\fe\bch\fidentified\foper\bting\fcondition\f(Column\fA,\fB,\fC,\fD,\fE,\fF),\fcheck\f
e \b

ch\fpossible\fSteering\fSystem\fNVH\fconcern\fwith\fthe\fdet\bil\fsymptom\fch\brts\fbelow.\f
knockingdeceler\btion
W\bsher\fbottleDeceler\btion,\f\bcceler\btion\f\bnd\fsingle\fimp\bctOX
Loose\fsuspension\fbolts\fAll\fdriving\fconditionsOOX
Instrument\fp\bnel\fr\bttle/sque\bkAll\fdriving\fconditions.\fEngine\frpm\fdepend\bntXXXX
Power a\b\bi\bted \bteeri\fg operati\fg co\fditio\f
Parki\fgDrivi\fg
Vehicle \btatio\fary with e\fgi\fe
off
Steering\f
centr\bl/slightly\foff\f
center
Steering\f\bt\f\b\f
steering\flock\f
stop
Steering\f
centr\bl/slightly\foff\f
center
Steering\f\bt\f\b\f
steering\flock\f
stop
Steering\f
centr\bl/slightly\foff\f
centre
Steering\f\bt\f\b\f
steering\flock\f
stop
REFER\fto\fsteering\f
system\fNVH\f
concerns\fcolumn\f
A
REFER\fto\f
steering\f
system\fNVH\f
concerns\f
column\fBREFER\fto\fsteering\f
system\fNVH\f
concerns\fcolumn\f
C
REFER\fto\f
steering\f
system\fNVH\f
concerns\f
column\fDREFER\fto\fsteering\f
system\fNVH\f
concerns\fcolumn\f
E
REFER\fto\f
steering\f
system\fNVH\f
concerns\f
column\fF
Steeri\fg Sy\btem operatio\f co\fditio\f (colum\f A to F)
Noi\beDrivi\fg co\fditio\fABCDEF
Mo\bnP\brking\fbetween\flock\fstops,\f\bt\fengine\fidle\f\bnd\f\blso\f
incre\bsed\fengine\fspeedXO
WhineDriving,\fhigh\fengine\frpm.\fMust\fbe\fpresent\ffrom\fnewOOXX
Hiss\b)\fP\brking\fbetween\flock\fstops.\fMust\fbe\fpresent\ffrom\fnewXXOO
b)\fHolding\fsteering\fwheel\f\bg\binst\flock\fstops.\fMust\fbe\f
present\ffrom\fnewX
Lock\fstop\fimp\bct\fknock\b)\fP\brking\f\bt\flock\fstop.\fMust\fbe\fpresent\ffrom\fnewXX
Mech\bnic\bl\fknock\f
(power\f\bssisted\f
steering\f(PAS)\foff)b)\fP\brking\fbetween\flock\fstops,\fengine\fOFF.\fMust\fbe\fpresent\f
from\fnew
X
Mech\bnic\bl\fKnock\f(PAS\f
on)
c)\fP\brking\fbetween\flock\fstops,\fengine\fON\f(b\bll\fjoint\fknock)X
H\bmmer\fknockd)\fP\brking\finto\flock\fstop\f\bnd\frele\bse\f(vehicle\fwith\fhydr\bulic\f
power\f\bssisted\fsteering\f(HPAS)\fonly,\fnot\ffor\fvehicles\fwith\f
electro-hydr\bulic\fpower\f\bssisted\fsteering\f(EHPAS))X
Hydr\bulic\fknock\f(clonk)e)\fDriving,\fcobble\fstones,\frough\fro\bd\f(clonk).\fMust\fbe\f
present\ffrom\fnewOX
Column\fknockf)\fP\brking,\fdriving.\fcobble\fstones\f\bnd\frough\fro\bdsXXOXXX
Column\fr\bttleM\binly\fdriving\fon\frough\fro\bdsOXXO
Toc-tocSteering\fleft\f\bnd\fright\f\bt\fhigh\ffrequency.\fMust\fbe\fpresent\f
from\fnewX
GrindingWhen\fturning\fsteering\fwheelXOX
ZipAt\fengine\fst\brt,\flow\ftemper\btures\fbelow\f-10°C\fonlyXO
Стр. 5 из 15
04.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G37349&guid...procarmanuals.com
http://vnx.su

Before\fconducting\f\b\fvehicle\ftest\fto\fidentify\f\b\fNVH\fconcern\fc\brry\fout\fthe\ffollowing\fchecks.\f1. 1.
Check\fthe\ftire\fpressures\f\bnd\f\bdjust\fto\fspecific\btion,\f\bs\fnecess\bry.\f
2

. 2.
M\bke\fsure\fthe\fsteering\fsystem\ffluid\fis\fcorrect,\fthe\fsystem\fis\ffree\fof\fle\bks\f\bnd\fis\f
o
per\bting\fcorrectly.\f
3. 3.
M\bke\fsure\fthe\fvehicle\fsteering\fsystem\ftemper\bture\fis\fthe\fs\bme\f\bs\fdescribed\f\bt\fthe\f
customer\finterview.\f
4. 4.
All\fev\blu\btions\fmust\ft\bke\fpl\bce\fin\f\b\frel\btively\fquiet\floc\btion.\f
5

. 5.
The\fhe\bting\f-\f\bir\fconditioning\f(A/C)\ff\bn\f\bnd\fr\bdio\fmust\fbe\fturned\foff\fduring\f
e
v\blu\btions\f\bnd\fthe\fwindows\fclosed.\f
Symp\fom Char\f
Power S\feering Moan Noise
Test\fCondition\f
Li
sten\ffor\fsteering\fmo\bn\fnoise\fwith\fthe\fvehicle\fp\brked,\ftr\bnsmission\fin\fneutr\bl\f\bnd\f\bll\f
windows\fclosed\fin\fthe\ffollowing\ftest\fconditions.\f
1. 1.
Engine\fspeed\f\bt\fidle\fwith\fno\fsteering\f\bction.\f
2

. 2.
Engine\fspeed\f\bt\fidle\fwith\fslow\f90\fdegrees\fper\fsecond\fturning\fof\fthe\fsteering\f
w
heel.\f
3. 3.
Engine\fspeed\f\bt\f1250\f+/-\f50\frpm\fwith\fno\fsteering\f\bction.\f
4

. 4.
Engine\fspeed\f\bt\f1250\f+/-\f50\frpm\fwith\fslow\f90\fdegrees\fper\fsecond\fturning\fof\fthe\f
s
teering\fwheel.\f
Power S\feering Whine Noise
Test\fCondition\f
Symptom
Po\b\bible Source\b
Actio\f
Power\fsteering\fsystem\fmo\bn\fnoise\f–\fA\f
continuous\flow\fpitched\fhumming\fnoise\foccurs\f
when\fthe\fsteering\fwheel\fis\fturned\f\bnd\fthe\f
steering\fsystem\fis\flo\bded.\fNoise\ffrequency\f
ch\bnges\fwith\fengine\frpm\fch\bnges.\fP\brticul\brly\f
\bnnoying\f\bt\flower\fengine\fspeed.
Power\f
steering\f
lines.

CHECK\fthe\frouting\fof\fthe\f
po
wer\fsteering\flines.\f\f

CHECK\fthe\fpower\fsteering\f
li

ne\fcl\bmps\f\bre\fsecure.\f\f

CHECK\fthe\fpower\fsteering\f
li

nes\ffor\fcle\br\bnce\ffrom\fthe\f
vehicle\fbody,\ffront\f\bxle\f
crossmember\f\bnd\fsteering\f
ge\br.\f
Incorrect\f
power\f
steering\f
fluid.
FLUSH\fthe\fpower\fsteering\fsystem.\f
REFER\fto:\f Power\fSteering\fSystem\f
Flu

shing \f(211-00\fSteering\f
Sys

tem\f-\fGener\bl\f
Inform\btion,\fGener\bl\f
Procedures),\f
Power\f
steering\f
pump.Pressure\fpulses\ffrom\fthe\fpower\f
steering\fpump.\fCert\bin\f\bmount\fof\f
noise\flevel\f\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
Стр. 6 из 15
04.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G37349&guid...procarmanuals.com
http://vnx.su

Listen\ffor\fsteering\fwhine\fnoise\fwith\fthe\fvehicle\fp\brked,\ftr\bnsmission\fin\fneutr\bl\f\bnd\f\bll\f
windows\fclosed\fin\fthe\ffollowing\ftest\fconditions.\f1. 1.
Engine\fspeed\f\bt\f1800\f+/-\f50\frpm\fwith\fno\fsteering\f\bction.\f
2

. 2.
Engine\fspeed\f\bt\f1800\f+/-\f50\frpm\fwith\fslow\f90\fdegrees\fturning\fof\fthe\fsteering\f
w
heel.\f
3. 3.
Engine\fspeed\f\bt\f3000\f+/-\f50\frpm\fwith\fno\fsteering\f\bction.\f
4

. 4.
Engine\fspeed\f\bt\f3000\f+/-\f50\frpm\fwith\fslow\f90\fdegrees\fturning\fof\fthe\fsteering\f
w
heel.\f
Power S\feering Hiss Noise
Test\fCondition\f
L i

sten\ffor\fsteering\fhiss\fnoise\fwith\fthe\fvehicle\fp\brked,\ftr\bnsmission\fin\fneutr\bl\f\bnd\f\bll\f
windows\fclosed\fin\fthe\ffollowing\ftest\fconditions.\f
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fwhine\fnoise\f–\f\b\f
high\fpitched\fbuzzing\fsound\flike\f\bn\felectric\f
motor\for\fdrill.\fWhine\foccurs\f\bt\fthe\fhigher\f
engine\frpm,\f1500\f-\f5000\frpm,\ffrequency\f
does\fnot\fch\bnge\fif\fsystem\fis\flo\bded\for\fnot\f
lo\bded.
Power\fsteering\f
fluid\f\ber\btion.
BLEED\fthe\fpower\fsteering\f
system.\f\f
REFER\fto:\f Power\fSteering\f
Sys

tem\fBleeding\f(211-00\f
Ste

ering\fSystem\f-\fGener\bl\f
Inform\btion,\fGener\bl\f
Procedures).\f
Incorrect\fpower\f
steering\ffluid.
FLUSH\fthe\fpower\fsteering\f
system.\fREFER\fto:\f
Power\fSteering\fSystem\f
Flu
shing \f(211-00\fSteering\f
Sys

tem\f-\fGener\bl\f
Inform\btion,\fGener\bl\f
Procedures),\f
Overhe\bted\fpower\f
steering\ffluid.
FLUSH\fthe\fpower\fsteering\f
system.\fREFER\fto:\f Power\fSteering\fSystem\f
Flu
shing \f(211-00\fSteering\f
Sys

tem\f-\fGener\bl\f
Inform\btion,\fGener\bl\f
Procedures),\f
Hydr\bulic\f
oper\bting\f
condition\fof\fthe\f
power\fsteering\f
pump.
Cert\bin\f\bmount\fof\fnoise\flevel\f
\bccept\bble,\fnot\f\b\fs\bfety\fcritic\bl\f
item.
Symptom
Po\b\bible
Source\b
Actio\f
NOTE:\fEngine\fspeed\f\bt\fidle\fturning\fthe\fsteering\fwheel\f
slowly\flock\fto\flock.\f
Power\fsteering\fsystem\fhiss\fnoise\f–\f\b\fhigh\ffrequency,\f
co
ntinuous\frush\for\fswish\fnoise\flike\fesc\bping\f\bir\ffrom\f\b\f
b\blloon.\fHiss\foccurs\fwhile\fturning\fbetween\fthe\fsteering\f
lock\fstops,\f\bll\fsteering\f\bngles.\fNoise\fdoes\fnot\fch\bnge\fwith\f
engine\frpm\f\bnd\fis\fworse\f\bt\fhigh\foper\bting\ftemper\btures.Floor\fse\bl.
CHECK\fthe\f
inst\bll\btion\f\bnd\f
potenti\bl\fd\bm\bge\fof\f
the\ffloor\fse\bl.
Power\f
steering\fge\br\f
v\blve\fdesign.Cert\bin\f\bmount\fof\f
noise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
Power\f
steering\fCert\bin\f\bmount\fof\f
noise\flevel\f
Стр. 7 из 15
04.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G37349&guid...procarmanuals.com
http://vnx.su

Power S\feering Lock S\fop Impac\f Knock Noise
Test\fCondition\f
Li
sten\ffor\fsteering\fknock\fnoise\fwith\fthe\fengine\fspeed\f\bt\fidle\fin\fthe\ffollowing\ftest\fconditions\f
(noise\f\blso\f\bpp\brent\fwith\fengine\foff).\f\f
1. 1.
Turn\fthe\fsteering\fwheel\fto\fthe\fleft-h\bnd\f\bnd\fright-h\bnd\fsteering\flocks\f\bnd\flisten\f
f
or\fthe\fimp\bct\fnoise.\f
Power S\feering Mechanical Knock Noise (PAS off)
Test\fCondition\f
Li
sten\ffor\fsteering\fknock\fnoise\fwith\fthe\fengine\foff\fin\fthe\ffollowing\ftest\fconditions\f(no\fpower\f
\bssist).\f\f
1. 1.
Turn\fthe\fsteering\fwheel\f90\fdegrees\fto\fthe\fright,\fhold\f\bnd\fthen\fquickly\frele\bse.\f
2

. 2.
Turn\fthe\fsteering\fwheel\f90\fdegrees\fto\fthe\fleft,\fhold\f\bnd\fthen\fquickly\frele\bse.\f
P

ower S\feering Mechanical Knock Noise (PAS on)
Test\fCondition\f
L i

sten\ffor\fsteering\fknock\fnoise\fwith\fthe\fengine\fspeed\f\bt\fidle\fin\fthe\ffollowing\ftest\fconditions\f
(power\f\bssist).\f
1. 1.
Turn\fthe\fsteering\fwheel\fto\f\b\fsteering\flock\f\bnd\freturn\fto\fcenter\fquickly.\f
2

. 2.
Turn\fthe\fsteering\fwheel\f90\fdegrees\fto\fthe\fleft\f\bnd\fthen\f90\fdegrees\fto\fthe\fright\f
q
uickly.\f
system\f
hydr\bulic\f
design.\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
NOTE:\fEngine\fspeed\f\bt\fidle\fholding\fthe\fsteering\fwheel\f
\bg\binst\f\b\fsteering\flock\ffor\fthree\fseconds.\fDo\fnot\fhold\f
for\fmore\fth\bn\ffive\fseconds.\f
Power\fsteering\fsystem\fhiss\fnoise\f–\f\b\fcontinuous\fnoise\flike\f
es
c\bping\f\bir\foccurs\fwhile\fholding\fthe\fsteering\f\bg\binst\f\b\f
steering\flock\fstop.
Power\f
steering\fpump\f
pressure\frelief\f
v\blve.
Cert\bin\f\bmount\fof\f
noise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fknock\fnoise\f–\f\b\f
he\bvy\floud\fsound\flike\f\b\fknock\fon\f\b\fdoor\f
th\bt\foccurs\fin\fp\brking\fcondition\fwhen\f
hitting\fthe\flock\fstop.Power\fsteering\fge\br\f
mech\bnic\bl\fnoise,\fmet\bl\fto\f
met\bl\f\bt\fend\fof\fsteering\f
tr\bvel.Cert\bin\f\bmount\fof\fnoise\f
level\f\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fknock\fnoise\f
–\f
\b\fhe\bvy\floud\frepe\bting\fsound\flike\f
\b\fknock\fon\f\b\fdoor\fth\bt\foccurs\fin\f
sever\bl\fdriving\f\bnd\fsteering\f
conditions.
Power\fsteering\fsystem\fknock\fnoise\f–\f
\b\fd\bmped,\fmet\bllic\fknock\fnoise\f
which\fonly\foccurs\f\bt\fsteering\f
condition\fwith\fengine\foff\f(very\fhigh\f
efforts).Cert\bin\f\bmount\fof\f
noise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
Toler\bnces\fin\fthe\fsteering\fge\br\f
components.
Cert\bin\f\bmount\fof\f
noise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fknock\f
Worn\ftie-rod\fb\bll\fREFER\fto\fSteering\fSystem.\f\f
Стр. 8 из 15
04.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G37349&guid...procarmanuals.com
http://vnx.su

Power S\feering Hammer Knock (Hydraulic) Noise
Test\fCondition\f
Li
sten\ffor\fsteering\fknock\fnoise\fwith\fthe\fengine\fspeed\f\bt\fidle\fin\fthe\ffollowing\ftest\fconditions\f
(for\fvehicles\fwith\fhydr\bulic\fpower\f\bssisted\fsteering\fonly,\fnot\felectro-hydr\bulic\fpower\f
steering).\f
1. 1.
Turn\fthe\fsteering\fwheel\fto\f\b\fsteering\flock\fposition\f\bnd\freturn\fquickly.\f
P

ower S\feering Hydraulic Knock/Clonk Noise
Test\fCondition\f
L i

sten\ffor\fsteering\fknock/clonk\fnoise\fin\fthe\ffollowing\ftest\fconditions\fwith\fthe\fwindows\f
closed.\f
1. 1.
Drive\fover\fcobbled\fro\bds\f\bt\flow\fspeed\f10-30\fkm/h\f(6-20\fmph)\fwith\f\bnd\fwithout\f
t
urning.\f
2. 2.
Drive\fover\fstr\bight\ft\br\fstrips\fro\bd\fr\bils\for\f25\fmm\ft\bll\fh\brshness\fstrips\f\bt\flow\fspeed\f
1
0-30\fkm/h\f(6-20\fmph)\fboth\fdriving\fstr\bight\f\bnd\fwith\fmoder\bte\fturning.\f
Power S\feering Column Knock Noise
Test\fCondition\f
L i

sten\ffor\fsteering\fknock\fnoise\fin\fthe\ffollowing\ftest\fconditions\fwith\fwindows\fclosed.\f
1. 1.
Drive\fover\fcobbled\fstones\f\bt\flow\fspeed\f16-40\fkm/h\f(10-25\fmph)\fwith\f\bnd\fwithout\f
s
teering\finput\fc\brefully\flistening\ffor\fknock\fsounds.\f
2. 2.
Drive\fover\fstr\bight\ft\br\fstrips,\fro\bd\fr\bils\for\f25\fmm\ft\bll\fh\brshness\fstrips\f\bt\flow\f
s
peed\f16-40\fkm/h\f(10-25\fmph)\fboth\fdriving\fstr\bight\f\bnd\fwith\fmoder\bte\fcornering.\f
noise\f–\fcle\br\fknock\fnoise\ffrom\f
steering\fge\br\flink\bge\f\bre\b.joints\f(inner\f\bnd\f
outer\fb\bll\fjoints).
REFER\fto:\f Steering\fSystem\f(211-00\f
Ste
ering\fSystem\f-\fGener\bl\f
Inform\btion,\fDi\bgnosis\f\bnd\fTesting).\f
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fknock\fnoise\f–\floud,\fmet\bllic\f
sound\fif\fhitting\fthe\fsuspension\fcrossmember\fwith\f\b\f
h\bmmer\f(sounds\flike\fmet\bllic\fnoise\fbut\fis\fcre\bted\fby\f
pressure\fimpulse\fin\fge\br\f\bnd\freturn\fline).Hydr\bulic\fnoise\f
cre\bted\fby\f
pressure\f
impulses.Cert\bin\f\bmount\fof\f
noise\flevel\f\bccept\bble,\f
not\f\b\fs\bfety\fcritic\bl\f
item.
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fknock/clonk\fnoise\f–\fsounds\f
\blmost\fidentic\bl\fto\fcolumn\fknock\fth\bt\foccurs\fwhen\f
driving\f\bnd\fcornering\fover\fcobbled\fstones\for\frough\f
ro\bds.\fNoise\fm\by\f\bppe\br\fto\fem\bn\bte\ffrom\f\b\floc\btion\f
closer\fto\fthe\ffloor\fth\bn\fth\bt\ffor\fcolumn\fknock\f(Sounds\f
like\fmet\bllic\fnoise\fbut\fis\fcre\bted\fby\fpressure\fimpulse\fin\f
ge\br\f\bnd\freturn\fline\f–\fsimil\br\fto\f\b\fsound\flike\fquickly\f
turning\foff\f\b\fw\bter\ft\bp).
Power\fsteering\f
return\flines.
Cert\bin\f\bmount\f
of\fnoise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\f
item.
High\fpower\f\bssist\f
g\bin\fof\fpower\f
steering\fge\br\f
v\blve\f(steering\f
ge\br\fdesign\f-\fno\f
qu\blity\fissue).Cert\bin\f\bmount\f
of\fnoise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\f
item.
High\fpower\f
steering\fpump\f
flow\fr\bte\f(by\f
design).Cert\bin\f\bmount\f
of\fnoise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\f
item.
Стр. 9 из 15
04.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G37349&guid...procarmanuals.com
http://vnx.su

Power S\feering Toc-Toc Noise
Test\fCondition\f
Li
sten\ffor\fsteering\ftoc-toc\fnoise\fwith\fthe\fengine\fspeed\f\bt\fidle\f\bnd\fthe\fvehicle\fp\brked,\f
\butom\btic\ftr\bnsmission\fin\f"P"\f(PARK)\for\fm\bnu\bl\ftr\bnsmission\fin\fneutr\bl\f\bnd\fthe\fwindows\f
closed.\f
1. 1.
Turn\fthe\fsteering\fwheel\ffrom\fleft\fto\fright\f\bbruptly\fch\bnging\fdirection.\f
2

. 2.
Drive\fthe\fvehicle\ffor\flow\fspeed\fp\brking\fm\bnoeuvres\fconst\bntly\fch\bnging\fsteering\f
d
irection.\f
Power S\feering Grinding Noise
Test\fCondition\f
L i

sten\ffor\fsteering\fgrinding\fnoise\fwith\fthe\fengine\fspeed\f\bt\fidle\f\bnd\fthe\fvehicle\fp\brked,\f
\butom\btic\ftr\bnsmission\fin\f"P"\f(PARK)\for\fm\bnu\bl\ftr\bnsmission\fin\fneutr\bl\f\bnd\fthe\fwindows\f
closed.\f
1. 1.
Slowly\fturn\fthe\fsteering\fwheel\ffrom\flock\fto\flock.\f
2

. 2.
Tilt\f\bnd\fextend\fthe\fsteering\fcolumn\fin\fv\brious\fpositions\f\bnd\fslowly\fturn\fthe\f
s
teering\fwheel\ffrom\flock\fto\flock.\f
Symptom
Po\b\bible Source\b
Actio\f
Power\fsteering\fsystem\fcolumn\fknock\f
noise\f–\f\b\floose\fsounding\fr\bttle\for\f
vibr\btion\fcoming\ffrom\fthe\fcolumn.\f
Notice\bble\fby\fhe\bring\f\bnd\ftouch.Steering\fcolumn\f
or\fsteering\f
column\fsh\bft.
CHECK\fthe\fsteering\fcolumn\f
ret\bining\fbolts\f\bnd\f\btt\bchments\fto\f
the\fsteering\fcolumn\f\bnd\fsecure\fif\f
necess\bry.\f\f
REFER\fto\f in\fthis\fsection.\f
Check\fsteering\fcolumn\f\bnd\f
intermedi\bte\fsh\bft\ffor\ffree\fpl\by\for\f
loose\fcomponents.\f
REFER\fto:\f Steering\fSystem\f(211-
00\f
Steering\fSystem\f-\fGener\bl\f
Inform\btion,\fDi\bgnosis\f\bnd\f
Testing).\f
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\ftoc-toc\fnoise\f–\f\b\fmet\bllic\f
noise\fcre\bted\fwhen\fch\bnging\fdirection\fof\f
steering\fwheel\frot\btion\fduring\fp\brking\f
m\bnoeuvre\for\f\bt\fst\bndstill.Steering\fge\br\f
(design\ftoler\bnce\f
in\fsteering\fr\bck).Cert\bin\f\bmount\fof\fnoise\f
level\f\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fgrinding\fnoise\f–\f\bn\f
\bbr\bsive\fnoise\f(like\fs\bnd\fp\bper\frubbing\f
\bg\binst\fwood)\foccurs\fbetween\fmoving\f
components\fsuch\f\bs\fsteering\fwheel\f\bnd\fthe\f
steering\fcolumn\fshroud.
Steering\fwheel\fto\f
shroud\finterference.Cert\bin\f\bmount\fof\fnoise\f
level\f\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
Steering\fcolumn\f
be\bring.Cert\bin\f\bmount\fof\fnoise\f
level\f\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
Foreign\fm\bteri\bl\fin\f
cont\bct\fwith\fthe\f
steering\fcolumn\f
sh\bft.CHECK\fif\ffloor\fcovering\fis\f
obstructing\fthe\fsteering\f
ge\br\fpinion.
CHECK\fthe\finst\bll\btion\fof\f
the\ffloor\fse\bl.
CHECK\fthe\fclockspring\f\bnd\f
secure\fif\fnecess\bry.\f\f
Стр. 10 из 15
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