lock ACURA INTEGRA 1994 Service Repair Manual

Lock-up Control Solenoid Valve A/B
NOTE: Lock-uD control solenoid valves A and B must be
removed/replaced as an assemblv.
l. Disconnect 2P connector trom the lock-uo control
solenoid valve A/8.
2. Measure the resistance between the No. 1 terminal(solenoid valve A) ot the lock-up cont.ol solenoid
valve connector and body ground, and between the
No. 2 terminal (solenoid valve B) and body ground.
STANDARD: 14- 16 O
2P CONI{ECTORView trom terminal side.
SoLENOTO VAI-VEASSEMBLY
Reolace the lock-uo control solenoid valve assem-
bly if the resistance is out of specitication.
lf the .esistance is within the standard, connect the
No. 1 terminal ot the lock-uo control solenoid valve
connector to the battery positive terminal. A click-
ing sound should be heard. Connect the No. 2 ter-
minal to the battery positive terminsl. A clicking
sound should be heard. Replace the lock-up control
solenoid valve assembly if no clicking sound is heard.
?
4.
Replacement
Remove the mounting bolts and lock-up control sole-
noid valve assembly.
NOTE: Be sure to remove or replace the lock-up con-
trol solenoid valves A and B as an assembly.
Check the lock-up control solenoid valve oil passages
tor dust or dirt. and replace as an assembly, if
neceSsary.
6 x 1.0 mm12 N.m (1.2 kgf.m,8.7 lbf'ft)
Clean the mounting sudaceand oil passages.
Clean the mounting surtace and oil passages of the
lock-up control solenoid valve assembly. and install
a new filter/gasket.
Check the connector for rust, dirt or oil and recon-
nect rt securely.
14-82

Symptom-to-Component Chart
Hydraulic System
SYMPTOMCheck these items on the
PROBABLE CAUSE ListCheck these items
on the NOTES List
Engine runs, but car does not move in any gear.1, 6, 7, 16K,L,R,S
Car moves in @ and @, but not in @, @ or Iposataon.a, 29, 44. 4ac,M,o
Car moves in E, @, [, @, uut not in E position.9,30,49C, L
car moves in p:1, [o-il, [2-], [!, uut not in E position.1, 11, 22, 34, 38, 39, 40c,L,o
Car moves in N position.1, 8, 9, 10, 11,46,47C,D
Excessive idle vibration.5, 1'1B,K,L
Slips in all gears.6, 7, 16C,L
No engine braking in E position.12C,D,L
Slips in 1st gear.8, 29, 44, 4Ac,N,o
Slips in 2nd gear.9, 20, 23, 30, 49C, L
Slips in 3rd gear.10, 21 , 23, 31 , 49C,L
Slips in 4th gear.11, 23, 32, 44C,L,N
Slips in reverse gear.11,32,34,44C,N
Flares on 1-2 upshilt.3, 15, 23E,L,V
Flareson2 3 upshilt.3, 15, 23, 24, 49E,L,V
Flares on 3-4 upshift.3, 15, 23, 25, 49E,L,N,V
No upshift; transmission stays in 1st gear.14,19,G, L
No downshift to lst gear.12. 19G, L
Late upshift.14
Erratic shitting.2, 14,26
Harsh shift (up and down shiftingl.2, 4, 15, 23, 24, 25, 26, 27,
47A,E, H, I, L,V
Harsh shitt {1-2).2, 9. 15, 23C,D,E,V
Harshshilt (2-3).2, 10, 15, 23, 24C,D,E,H,L,V
Harsh shift (3-4).2,| 1, 15, 23, 25C, D, E, I,L,V
Harsh kick'down shifts.2, 15, 23, 26, 27. 2AE,L,O,V
Harsh kick-down shift 12 1)48o
Harsh downshift at closed throttle.2, 15, 23FT
Harsh shift when manually shifting to E] position.33L
Axle{s} slips out of transmission on turns.43,50
Axlels) stuck in transmission.43L,O
Ratcheting noise when shifting inro E position.6,7,38,39,40K,L,O
Loud popping noise when taking ott in E position.3a,39,40L,O
Ratcheting noise when shifting from E to E position or from Eto N I oosition.38,33,40,45L,O
Noise from transmission in all selector lever positions.6, 11K,L,O
Noise trom transmission only when wheels are rolling.39, 42L,O
Gear whine, rpm related (pitch changes with shitts).a, 13, 41K,L,O
Gear whine, speed rel6ted (pitch changes with speed).38, 42L,O
Transmission will not shift into 4th gear in @ position1,21,24.32L
Lock-up clutch does not lock-up smoothly.17, 36, 37L
Lock-up clutch does not operate properlV.2.3. 14, 15. 18, 35, 36, 37E,L,V
Transmission has multitude of problems shitting.
At disassembly, large particles oI metal are found on magnet.43L,O
14-86

PROBABLE CAUSE
1Shitt cable broken/out of adiustment.
Throttle cable too short.
Throttle cable too long.
Wrong type ATF.
ldle rpm too low/high.
o.Oil pump worn or binding.
7.Pressure regulator stuck.
8.l st clutch detective.
9.2nd clutch detective.
10.3rd clutch defective.
114th clutch defective.
12.1 st'hold clutch defective.
13.Mainshatt worn/damaged.
14.Modulator valve stuck.
Throttle valve B stuck.
lo.ATF strainer clogged.
Toroue converter def ective.
18.Torque converter check valve stuck.'I 9.1-2 shift valve stuck.
2-3 shift valve stuck.
213-4 shift valve stuck.
Servo control valve stuck.
23.Clutch Dressure control (CPC) valve stuck.
2-3 orifice control valve stuck.
Orifice control valve stuck.
26.3-2 kick-down valve stuck.
27.4-3 kick-down valve stuck.
24.4th exhaust valve stuck.
29.1st accumulator detective.
30.2nd accumulator detective.
313rd accumulator defective.
4th accumulator defective.
1 st-hold accumulator defective.
Servo valve stuck.
35.Lock-up timing B valve stuck.
36.Lock-up shift valve stuck.
37.Lock-uo control valve stuck.
38.Shift fork benr.
39.Reverse gears worn/damaged (3 gears).
40.Reverse selectot worn.
413rd gears worn/damaged (2 gears).
Final qears worn/damaged (2 gearsl.
43.Differential Dinion shatt worn.
44.Feedpipe O-ring broken.
45.4th qears worn/damaged (2 gearsl
Gear clearance incorrect.
47.Clutch clearance incorrect.
48.One-way (sprag) clutch defective.
49.Sealinq rings/quide worn.
50.Axle-inboard joint clip missing.

Symptom-to-Component Ghart
Hydraulic System (cont'd)
The following symptoms can be caused
by improper repair or assemblv
Check these items on the
PROBABLE CAUSE DUE TO
IMPROPER REPAIR List
Items on the
NOTES List
Car creeps in E position.R1, R2
Car does not move in @ or @ position.R4
Transmission locks up in @ position.R3, Rl2
Excessive drag in transmission.R6K.R
Excessive vibration, rom related.R7
Noise with wheels moving onlyR5
Main seal pops out.R8
Various shifting problems.R9, R1O
Harsh upshifts.R11
PROBABLE CAUSE DUE TO IMPROPER REPAIR
R1lmproper clutch cleatance.
R2.lmDroDer qear clearance.
Parking brake lever installed upside down.
One-way (spragl clutch installed upside down,
Reverse selector hub installed upside down.
Oil oumo bindind
Torque converter not fully seated in oil pump.
Main seal improperly installed.
Springs improperly installed,
Valves improperly installed.
Ball check valves not installed.
Shitt fork bolt not installed.
R3.
R4.
R5.
R6.
R7.
R8.
R9.
R10.
R11
R12.
14-88

NOTES
A.See flushing procedure, page l4-168 and 169.
B.Set idle rpm in gear to specitied idle speed. lf still no good, adiust motor mounts as outlined in engine
section of service manual.
lf the large clutch piston O-ring is broken, inspect the piston groove for rough machining.
lf the clutch pack is seized or is excessively worn, inspect the other clutches Jor wear, and check the
orifice control valves and throttle valves for free movement.
E.It throttle valve B is stuck, inspect the clutches for wear.
lf the 1-2 shift valve is stuck closed, the transmission will not upshift. lI stuck open, the transmission
has no lst gear.
H.lf the 2-3 orifice control valve is stuck, inspect the 2nd and 3rd clutch packs for wear.
ll the orifice cont.ol valve is stuck, inspect the 3rd and 4th clutch packs for wear.
lf the clutch Dressure control valve is stuck closed, the transmission will not shilt out of 1st gear.
K.improper alignment or main valve body and torque converter housing may cause oil pump seizure. The
symptoms ale mostly an rpm-related ticking noise or a high-pitched squeak.
L.ll the ATF strainer is ctogged with panicles of steel or aluminum, inspect the oil pump and ditferential
pinion shaft. lt both are OK and no cause lor the contamination is found, replace the torque converter.
M.lf the 1st clutch feedpipe guide in the right side cover is scored by the mainshaft, inspect the ball bear-
ing for excessive movement in the transmission housing. lf OK. replace the right side cover as it is dent-
ed. The O-ring under the guide is probably worn.
N.ReDlace the mainshstt if the bushing for the 4th feedpipe is loose or damaged.
It the 4th feedpipe is damaged or out ot tound, replace the right side cover'
Replace the subjshaft it thtbushing for the 1st-hold Jeedpipe is loose or damaged.
lf the 1st-hold feedpipe is damaged or out of round, replace it.
Replace the mainshaft if the bushing lor the 1st feedpipe is loose or damaged.
lf the lst feedpipe is damaged or out ot round, replace it.
o.A *o- r, da."s"d "p-g clutch is mostly a result of shifting the transmission in El or Lq! position
while the wheels rotate in reverse, such as rocking the car in snow.
P.InsDect the frame for collision damage.
o.Inspect for damage or wear:
1. Reverse selector gear teeth chamfers.
2. Engagement teeth chamters of countershaft 4th and reverse gear.
3. Shift fork for scutt marks in center.
4. Differential Dinion shaJt for wear under pinion gears.
5. Bottom of 3rd clutch for switl marks.
Replace items 1 , 2, 3 and 4 it worn or damaged. lf transmission makes clicking, grinding or.whirring
noise, atso replace mainshaft 4th gear and reverse idler gear and countershaft 4th gear in addition to
1,2,3ot4.lf ditiersntial Dinion shaft is worn, overhaul differential assembly, and replace ATF strainel, and thoroughly
clean transmission, tlush torque convertet, cooler and lines.
lf bottom of 3rd clutch is swirled and transmission makes gear noise, replace the countershaft and tinal
driven gear.
R.Be wry careful not to dsmage the torque converter housing when replacing the main ballbearing. You
may al;o damage the oil pump when you torque down the main valve body. This will result in oil pump
seizure it not detected. Use proper tools.
qInstall the main seal tlush with the torque converter housing, lf you push it into the torque converter
housing until it bottoms out. it will block the oil return passage and result in damage.
T,Harsh do\/vnshiJt"\./l,'hen coasting to a stop with zero th.ottle may be caused by a bent-in throttle valve
retainer/cam stopper. Throttle cable adjustment may clear this problem.
ifuitle cable adjustment is essential for proper operation of the transmission. Not only does it affect
the shift points if misad,usted, but also the shift quality and lock-up clutch operation'
A cable adjusted too long will result in throttle pressure being too low for the amount of engine torque
input into ihe trsnsmission and may cause clutch slippage. A cable adjusted too short will result in too
hi;h throttle pressure which may cause harsh shitts, erratic shrfts and torque con
14-89

Road Test
NOTE: Warm up the engine to operating temperature (the cooling fan comes on).
1 Apply parking brake and block th€ wheels. Start the engine, them move the selector lever to E] position whiledepressing the brake pedal. Depress the accelerator pedal, and release it suddenly. The engine should not stall,
2. Repeat same test in @ position.
3. Shift the selecto. lever to E position, and chock that the shift points occur at approximate speeds shown. Alsocheck fof abnormal noise and clutch slippage.
NOTE: Throttle position sensor voltage fepresents the throttle opening.
- 1 . Connect the Test Harness between the ECM and connector (see section 1 1).-2. Setthe digital multimeter to check voltage between D1 1{+)terminal and D22 { - ) terminal for the throttle Dosi-tion sensor.
TESTHARI{ESSOTLAJ_PT3OlOA
DIGITAL MULTIMETERCommarcially avsilablo o.KS-AHM-32-OO3
011 {+oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
14-90

Throftle OpeningUnit of spe6dl st- 2nd2nd-3rd3rd-4th
Throttle position sensorvoltage: O.7 5 V
mph20-2227,30
Km/h17,O 19.O32.5 - 35.543.5-48.5
Throttle position sensorvoltage: 2.5 V
mpn
Km/h33.5 - 36.557.O-63.O89.O-95.O
Full-opened throttlemph30- 3462-6598- 101
Km/h49.O- 55.O99.O- 105.O1 57.O- 163.O
@ or @ Position
. Upshitt
Downshift
LOCK-Up
4. Accelerate to about 35 mph {57 km/h) so the transmission is in 4th, then shift from @ Oosition to E position.
The car should immediately begin slowing down from engine braking.
CAUTION: Do not shift from @ or @ position to @ of E position at speeds over 1OO mph (160 km/h); you
may damage the tlansmission,
5. Check lor abnormal noise and clutch slippage in the following positions.
E (1st Gear) Position- 1 . Accelerate from a stop at full throttle. Check that there is no abno.mal noise or clutch slippage.
-2. Upshifts should not occur with the selector in this position
E (2nd cear) Position.- 1 . Accelerate from a stop at full throttle. Check that there is no abnormal noise or clutch slippage.-2. Upshitts and downshitts should not occur with the selector in this position.
E {Reverse) Position
Accelerate from a stop at full throttle, and check for abnormal noise and clutch slippage.
6. Test in E {Parking) Position
Park car on slope (approx. 1 6o ), apply the parking brake, and shift into LE position. Release the brake; the car should
not move.
i
Throttle Op€ningUnit ot speed4th- 3rd3rd - 2nd2nd- l Et
Full-closed throttlemph1a-216-g (3rd- 1st)
Km/h29.O-33.O1O- 14 (3rd- lst)
Full-opened throttlemph85-8954- 5823-27
Km/h1 37.O- 143.08 7.0 - 93.037.0-43.O
Throttle OpeningUnit of speed
@ Position
Lock-uo control solenoidvalve A ON
Lock-up control solenoidvalve B ON
Throttle position sensorvoltage: 2,5 V
mpntJ- to17 -20
km/h21.O- 25.O2A.O-32.O
Full-opened throttlempn92-9692-96
km/h148.O - 1 54.0r 48.0,1 54.O
Throttlo OpeningUnit of sp6edE Position
Lock-up control solenoidvalve A ON
Lock-up control sol€noidvalv6 B ON
Throttle position sensorvoltage: 1.O Vmphb|-oJ61 63
kmih98- 10298- 102
Full-opened throttlemph85 8985-89
km/h137 143137 - 143
14-91

Stall Speed
CAUTION:
a To plevent transmission damage, do not test stall speed fot mote than 1O seconds at a time.a Do not shift the level while raising th€ engine speed.a Be sure to remove the pressure gauge belot€ testing stall speed.
1. Engage the parking brake and block all four wheels.
2. Connect the tachometer, and start the engine.
3. Make sure the A/C switch is OFF.
4. After the engine has warmed up to normal operating temperature (the cooling lan comes on), shift into ft position.
5. Fully depress the brake pedal and accelerator for 6 to 8 seconds. and note engine speed.6. Allow 2 minutes for cooling, then repeat the test in [, fDil and @ positions.
NOTE:
a Stall speed tests should be used lor diagnostic purposes only.. Stall speed should be the same in E, tr. tr and @ positions.
Stall Speed RPM: rpm
Specification: 2,400 rymService Limit: 2,2OO-2,600 tpm
TROUBLEPROBABLE CAUSE
Stall rpm hish in E, E, I and @posrtronLow fluid level or oil pump output
Cloqged ATF strainer
Pressure regulator valve stuck closed
Slipping clutch
Stall rpm high in I positionSlippage of 1st clutch, 1st-hold clutch or 1st gear one-way clutch
Stall rpm high in @ positionSlippage of 2nd clutch
Stall rpm high in @ positionSlippage of 1st clutch, lst gear one-way clutch
Stall rpm high in @ positionSlippage of 4th clutch
Stall rpm low in E, E, I ana @positionEngine output low
Torque converter one-way clutch slipping
14-92

Pressure Testing
a While testing, be caretul of the rotating flont wheels.a Make aura litts, jacks, and sat€ty stands alo placedplop6rly {see section 1}.
CAUTION: Betore t€sting, be sure the transmission fluidis tilled to rh6 ploper l€vet.
1. Raise the car (see section i),
2. Warm up the engine {the cooling fan comes onl, thenstop the engine and connect a tachometer.
3. Connect the oil pressure gauge to each inspectionholels).
TOROUE: 18 N.m (1.8 kgf.m, 13 tbf.fr)
CAUTION: Connect ths oil prsssure gauge s€cur€_ly; be sule not to allow dust and other foleign pani_cl6s to 6nt€1 th€ inspection holo.
A/T OIL PRESSURE GAUGESET WPANEL07406-002oi+oo
A/T LOW PRESSUREGAUGE W/PANEL07/rO6-0O70300
A/T OIL PRESSURE HOSE,22'10 mmOTMAJ_PY4OI TA{4 Roquirod)
A/T OIL PRESSUBE HOSEADAPTEROTMAJ - PY/+O12014 Roqui.odl
NOTE: Use the A/T Oil Pressure Gauge Set (07406_O02OOO3) or A/T Low Pressure Gauge (07406-OOTO0OO). and the oil pressure gauge hoses and adap_ters shown above.
14-94
4. Start the engine, and measure the respective pres-
sure as follows.
a Line Pressure
a Clutch Pfessure
a Clutch Low/High Pressure
a Throttle B Pressure
5. Install a new washer and the sealing bolt in the in-spection hole and tighten to the specified torque.
TOROUE: 18 N'm {1.8 kgf.m, 13 tbf.ft)
NOTE: Do not reuse old aluminum washers.
a Line Pressure M€asurement
- 1 . Set the parking brake and block both rear wheelssecurely.
-2. Run the engine at 2,OOO rpm
-3. Shift the selecr lever to S or @ position.
-4. Measure line pressure.
LINE PRESSUREINSPECTION HOLE
NoTE: Higher pressures may be indicated it measurements are made in selector positions other than @ or @ position.
PRESSURESELECTOR
POStTTONSYMPTOMPROBABLE CAUSEFLUID PRESSURE
StandardService Limit
LineNo'ENo (or low)
lrne pressureTorque converter,
orl pump, pressure
regulator, to.que
convener check
valve
83O-88O kPa(8.5-9.O kgf/cm,,
120- I 30 psi)
78O kPa
{8.0 kgl/cm,, 1lO psi}

a Clutch Pressuro M€asur€ment
@ wtit" testing, be careful ot the rotating front wheols.
1. Set the parking brake and block both rear wheels securely.
2. Raise the front of the car and support with safety stands.
-3. Allow the front wheels to rotate freely,
-4. Run the engine at 2,OOO rpm.-5. Measure each clutch Pressure.
LOCK.UP CONTNOL SOLENOIDVALVE ASSEMBLY
INSPECTION HOLE
SELECTOB
POST ONSYMPTOMPROBABLE CAUSE
FLUID PRESSURE
rl|E!!UltEStandardService Limit
1st ClutchEo'ENo or low
lst Pressure
1st Clutch83O-880 kPa
(8.5-9.O kgf/cm',
120- 130 psi)
78O kPa
{8.O kgf/cm', 11O psi)
l st-hold
ClutchtrNo or low
1st-hold
pressure
1st-hold CIutch
2nd ClutchaNo or low
2nd pressure
2nd Clutch
2nd ClutchENo or low
2nd pressure
2nd Clutch460 kPa
|'4.7 kgt lcm2, 67 psil
throttle control lever
fully closed
830-880 kPa
(8.5 - 9.0 kgt/cm',
120- l30 psi)
throttle control lever
more than 3/16 opened
4'l o kPa
(4.2 kgt/cm', 60 psi)
throttle control lever
fully closed
78O kPa(8.O kgf/cm', 1 1O psi)
throttle control lever
more than 3/16 opened
3rd ClutchNo or low
3rd pressure
3rd Clutch
4th ClutchNo or low
4th pressure
4th clutch
EServo Valve or 4th
Clutch
830-880 kPa
(8.5 9.0 kqf/cm',
120- 130 psi)
780 kPa
(8.0 kgf/cm', 1 1O psi)
(cont'd)
14-95