torque DODGE NEON 2000 Service Repair Manual

31
BLOCK FUSE
ST-RUN A21
11
15A
FUSE
11
2
34
3
2
69
7033
29
C12078C255C264C277C272C2
MODULE CONTROL
POWERTRAIN
C104
1C108
2C102
C1083
3C1054
C30517
BUILT-UP-
(EXCEPT
PUMP
DETECTION
LEAK
EXPORT)
(IN PDC) RELAY
CLUTCH
COMPRESSOR
A/C
A17
(IN PDC)
RELAY
FAN
RADIATOR
(ATX) SOLENOID
CLUTCH
CONVERTER
TORQUE
C11
11
S109
F12
18
DB/WT
F12
18
DB/WT
F12
18
DB/WT
F12
18
DB/WT
F12
18
DB/WT
F12
18
DB/WTF12
18
DB/WT
F12
18
DB/WT
F12
18
DB/WT
K54
18
OR/BK
K54
18
OR/BKC27
18
DB/PKC28
18
DB/OR
K106
18
WT/DGK107
18
YL
K107
18
YLK106
18
WT/DG
FUSED
IGNITION
SWITCH
OUTPUT
(ST-RUN)TORQUE
CONVERTER
CLUTCH
SOLENOID
CONTROLRADIATOR
FAN
RELAY
CONTROLA/C
COMPRESSOR
CLUTCH
RELAY
CONTROLLEAK
DETECTION
PUMP
SOLENOID
CONTROLLEAK
DETECTION
PUMP
SWITCH
SENSE
10FUSE15A
10
30
RHD LHD F12
18
DB/WT
F12
18
DB/WT
(8W-11-2)
(8W-11-3) (8W-10-10)
(8W-11-12)
(8W-42-2) (8W-42-5)(8W-11-11)
(8W-11-12) (8W-11-11)
PL8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 9
PLI03009008W-10

Component Page
PRNDL Lamp......................8W-80-39
Proportional Evap/Purge Solenoid.......8W-80-39
Radiator Fan Motor.................8W-80-39
Radio.............................8W-80-39
Rear Window Defogger Switch.........8W-80-40
Remote Keyless Entry Module.........8W-80-40
Right Back-Up Lamp................8W-80-41
Right City Lamp....................8W-80-41
Right Front Door Speaker.............8W-80-41
Right Front Fog Lamp...............8W-80-41
Right Front Side Marker Lamp........8W-80-42
Right Front Turn Signal Lamp.........8W-80-42
Right Front Wheel Speed Sensor.......8W-80-42
Right Headlamp....................8W-80-42
Right Headlamp Leveling Motor........8W-80-43
Right Instrument Panel Speaker.......8W-80-43
Right License Lamp.................8W-80-43
Right Park/Turn Signal Lamp..........8W-80-43
Right Rear Door Lock Motor...........8W-80-43
Right Rear Fog Lamp................8W-80-44
Right Rear Speaker..................8W-80-44
Right Rear Turn Signal Lamp..........8W-80-44Component Page
Right Rear Wheel Speed Sensor........8W-80-44
Right Repeater Lamp................8W-80-44
Right Tail/Stop Lamp................8W-80-45
Right Tail/Stop/Turn Signal Lamp......8W-80-45
Seat Belt Switch....................8W-80-45
Sentry Key Immobilizer Module........8W-80-45
Siren.............................8W-80-45
Sunroof Control Module..............8W-80-46
Sunroof Motor......................8W-80-46
Sunroof Switch.....................8W-80-46
Sunroof Vent Switch.................8W-80-46
Throttle Position Sensor..............8W-80-46
Torque Converter Clutch Solenoid.......8W-80-47
Traction Control Switch..............8W-80-47
Trunk Key Cylinder Switch............8W-80-47
Underhood Lamp...................8W-80-47
Vehicle Speed Control Servo...........8W-80-47
Vehicle Speed Sensor................8W-80-48
Windshield Washer Pump.............8W-80-48
Wipe/Wash Switch...................8W-80-48
Wiper Motor.......................8W-80-48
PL8W - 80 CONNECTOR PIN-OUTS 8W - 80 - 3

POWERTRAIN
CONTROL
MODULE - C2
61 K6 18VT/WT 5V SUPPLY
62 K29 20WT/PK BRAKE LAMP SWITCH SENSE
63 - -
64 C28 18DB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL
65 D21 20PK SCI TRANSMIT
66 G7 20WT/OR VEHICLE SPEED SENSOR SIGNAL
67 K51 18DB/YL AUTOMATIC SHUT DOWN RELAY CONTROL
68 K52 20PK/BK PROPORTIONAL EVAP/PURGE SOLENOID CONTROL
69 - -
70
71
72 K107 18YL LEAK DETECTION PUMP SWITCH SENSE
73
74 K31 18BR FUEL PUMP RELAY CONTROL
75 D20 20LG SCI RECIEVE
76 CLUTCH INTERLOCK SWITCH SENSE
77 K106 18WT/DG LEAK DETECTION PUMP SOLENOID CONTROL
78
79K54 18OR/BK TORQUE CONVERTOR CLUTCH SOLENOID CONTROL
80 V35 20LG/RD SPEED CONTROL VENT SOLENOID CONTROL
BLACK
71 8061 7051 6041 50
- - 60 59
20VT K59 58
IDLE AIR CONTROL NO. 1 DRIVER 20GY/RD K39 57
SPEED CONTROL VACUUM SOLENOID CONTROL 20TN/RD V36 56
55
- - 54
- - 53
INLET AIR TEMPERATURE SENSOR SIGNAL 20VT/LG G31 52
OXYGEN SENSOR 1/2 SIGNAL 20TN/WT K141 51
GROUND 20BK/TN Z12 50
20YL/BK K60 49
IDLE AIR CONTROL NO. 3 DRIVER 20BR/WT K40 48
GROUND 18BK/WT Z11 47
FUSED B(+) 18RD/WT A14 46
POWER STEERING PRESSURE SWITCH SENSE 20WT K10 45
8V SUPPLY 20OR K7 44
SENSOR GROUND 20BK/LB K4 43
- - 42
SPEED CONTROL SWITCH SIGNAL 20RD/LG V37 41
FUNCTION CIRCUIT CAV
IDLE AIR CONTROL NO. 2 DRIVER
IDLE AIR CONTROL NO. 4 DRIVER C27 18DB/PK RADIATOR FAN RELAY CONTROL
D25 20VT/YL
PCI BUS
K108 20DB EVAPORATIVE EMISSION SOLENOID SENSE
G9 18GY/BK RED BRAKE WARNING INDICATOR DRIVER
--
-- 76 T41 18BR/YL PARK/NEUTRAL POSITION SWITCH SENSE
20YL/RD T141
SPEED CONTROLEXCEPT BUILT-UP-EXPORT
MTX
ATX
8W - 80 - 38 8W-80 CONNECTOR PIN-OUTSPL
J008W-10PLI08038

Z1 20BK
2 CAV
1CIRCUIT
GROUNDFUNCTION
M1 20PK FUSED B(+)
UNDERHOOD
LAMP
CONTROL SERVOVEHICLE SPEED
41BLACK
GROUND 20BK Z1 4SPEED CONTROL BRAKE LAMP SWITCH OUTPUT 20DB/RD V30 3
SPEED CONTROL VENT SOLENOID CONTROL 20LG/RD V35 2
SPEED CONTROL VACUUM SOLENOID CONTROL 20TN/RD V36 1
FUNCTION CIRCUIT CAV
21
3 Z1 20BK GROUND
4 E2 22OR PANEL LAMPS DRIVER 4
1
SWITCH TRACTION CONTROL
TRACTION CONTROL SWITCH SENSE B27 20RD/YL 2- 1
FUNCTION CIRCUIT CAV
-
2
1
DECKLID SECURITY SWITCH SENSE G71 20VT/YL
GROUND
Z1 18BKFUNCTION
CAV CIRCUIT
1
2
CAV CIRCUIT FUNCTION
1- -
2 K54 18OR/BK TORQUE CONVERTER CLUTCH SOLENOID CONTROL
3 F12 18DB/WT FUSED IGNITION SWITCH OUTPUT (ST-RUN)
BLACK
1
23
TORQUE CONVERTER
CLUTCH SOLENOID
(ATX)
TRUNK KEY
CYLINDER SWITCH
BLACK
GRAY
WHITE
PL8W-80 CONNECTOR PIN-OUTS 8W - 80 - 47
PLI08047008W-10

Connector
Name/NumberColor Location Fig.
Sunroof
Control
ModuleAt Sunroof N/S
Sunroof Motor At Sunroof N/S
Sunroof
SwitchBK At Switch N/S
Sunroof Vent
SwitchAt Switch N/S
Throttle
Position
SensorBK On Throttle
Body2
Torque
Converter
Clutch
Solenoid
(ATX)BK On
Transmission2
Traction
Control SwitchWT Center of
Instrument
Panel7Connector
Name/NumberColor Location Fig.
Trunk Key
Cylinder
SwitchGY On Decklid 17
Underhood
LampBK At Lamp N/S
Vehicle Speed
Control ServoBK At Right Front
Strut Tower1, 3
Vehicle Speed
SensorBK On
Transmission5
Windshield
Washer PumpRD At Right Front
Wheel
Opening1
Wipe/Wash
SwitchGY Center of
Instrument
Panel6
Wiper Motor BK Left Side of
Engine
CompartmentN/S
8W - 90 - 6 8W - 90 CONNECTOR/GROUND LOCATIONSPL
DESCRIPTION AND OPERATION (Continued)

Connector
Name/NumberColor Location Fig.
Right Tail/Stop
LampBK At Lamp 31
Seat Belt
SwitchBK Under Drivers
SeatN/S
Sentry Key
Immobilizer
ModuleBK Right Side of
Instrument
Panel25
Siren Left Front of
Vehicle18
Sunroof
Control
ModuleAt Sunroof N/S
Sunroof Motor At Sunroof N/S
Sunroof
SwitchBK At Switch N/S
Sunroof Vent
SwitchAt Switch N/S
Throttle
Position
SensorBK On Throttle
Body19
Torque
Converter
Clutch
Solenoid
(ATX)BK On
Transmission19Connector
Name/NumberColor Location Fig.
Traction
Control SwitchWT Center of
Instrument
Panel24
Trunk Key
Cylinder
SwitchGY On Decklid 36
Underhood
LampBK At Lamp N/S
Vehicle Speed
Control ServoBK At Left Front
Strut Tower19
Vehicle Speed
SensorBK On
Transmission22
Windshield
Washer PumpRD At Right Front
Wheel
Opening18
Wipe/Wash
SwitchGY Center of
Instrument
Panel25
Wiper Motor BK Right Side of
Engine
Compartment23
PL8W - 90 CONNECTOR/GROUND LOCATIONS 8W - 90 - 25
DESCRIPTION AND OPERATION (Continued)

ENGINE
TABLE OF CONTENTS
page page
STANDARD SERVICE PROCEDURES........... 1
ENGINE DIAGNOSIS........................ 82.0L SOHC ENGINE....................... 15
STANDARD SERVICE PROCEDURES
TABLE OF CONTENTS
page page
GENERAL INFORMATION
FORM-IN-PLACE GASKETS & SEALERS........1
ENGINE GASKET SURFACE PREPARATION.....2
CRANKSHAFT DAMPER BOLT ACCESS PLUG . . . 2
ENGINE CORE PLUGS.....................2
ENGINE PERFORMANCE...................3HONING CYLINDER BORES.................3
MEASURING WITH PLASTIGAGE.............4
REPAIR OF DAMAGED OR WORN THREADS....5
HYDROSTATIC LOCKED ENGINE.............5
CHECKING ENGINE OIL LEVEL..............6
ENGINE OIL SERVICE......................7
GENERAL INFORMATION
FORM-IN-PLACE GASKETS & SEALERS
There are numerous places where form-in-place
gaskets are used on the engine. Care must be taken
when applying form-in-place gaskets to assure
obtaining the desired results.Do not use form-in-
place gasket material unless specified.Bead size,
continuity, and location are of great importance. Too
thin a bead can result in leakage while too much can
result in spill-over which can break off and obstruct
fluid feed lines. A continuous bead of the proper
width is essential to obtain a leak-free gasket.
There are numerous types of form-in-place gasket
materials that are used in the engine area. Mopart
Engine RTV GEN II, MopartATF-RTV, and Mopart
Gasket Maker gasket materials, each have different
properties and can not be used in place of the other.
MOPARtENGINE RTV GEN II
MopartEngine RTV GEN II is used to seal com-
ponents exposed to engine oil. This material is a spe-
cially designed black silicone rubber RTV that
retains adhesion and sealing properties when
exposed to engine oil. Moisture in the air causes the
material to cure. This material is available in three
ounce tubes and has a shelf life of one year. After one
year this material will not properly cure. Alwaysinspect the package for the expiration date before
use.
MOPARtATF RTV
MopartATF RTV is a specifically designed black
silicone rubber RTV that retains adhesion and seal-
ing properties to seal components exposed to auto-
matic transmission fluid, engine coolants, and
moisture. This material is available in three ounce
tubes and has a shelf life of one year. After one year
this material will not properly cure. Always inspect
the package for the expiration date before use.
MOPARtGASKET MAKER
MopartGasket Maker is an anaerobic type gasket
material. The material cures in the absence of air
when squeezed between two metallic surfaces. It will
not cure if left in the uncovered tube. The anaerobic
material is for use between two machined surfaces.
Do not use on flexible metal flanges.
MOPARtBED PLATE SEALANT
MopartBed Plate Sealant is a unique (green-in-
color) anaerobic type gasket material that is specially
made to seal the area between the bedplate and cyl-
inder block without disturbing the bearing clearance
or alignment of these components. The material
cures slowly in the absence of air when torqued
between two metallic surfaces, and will rapidly cure
when heat is applied.
PLENGINE 9 - 1

MOPARtGASKET SEALANT
MopartGasket Sealant is a slow drying, perma-
nently soft sealer. This material is recommended for
sealing threaded fittings and gaskets against leakage
of oil and coolant. Can be used on threaded and
machined parts under all temperatures. This mate-
rial is used on engines with multi-layer steel (MLS)
cylinder head gaskets. This material also will pre-
vent corrosion. MopartGasket Sealant is available in
a 13 oz. aerosol can or 4 oz./16 oz. can w/applicator.
FORM-IN-PLACE GASKET AND SEALER
APPLICATION
Assembling parts using a form-in-place gasket
requires care but it's easier then using precut gas-
kets.
MopartGasket Maker material should be applied
sparingly 1 mm (0.040 in.) diameter or less of sealant
to one gasket surface. Be certain the material sur-
rounds each mounting hole. Excess material can eas-
ily be wiped off. Components should be torqued in
place within 15 minutes. The use of a locating dowel
is recommended during assembly to prevent smear-
ing material off the location.
MopartEngine RTV GEN II or ATF RTV gasket
material should be applied in a continuous bead
approximately 3 mm (0.120 in.) in diameter. All
mounting holes must be circled. For corner sealing, a
3.17 or 6.35 mm (1/8 or 1/4 in.) drop is placed in the
center of the gasket contact area. Uncured sealant
may be removed with a shop towel. Components
should be torqued in place while the sealant is still
wet to the touch (within 10 minutes). The usage of a
locating dowel is recommended during assembly to
prevent smearing material off the location.
MopartGasket Sealant in an aerosol can should be
applied using a thin, even coat sprayed completely
over both surfaces to be joined, and both sides of a
gasket. Then proceed with assembly. Material in a
can w/applicator can be brushed on evenly over the
sealing surfaces. Material in an aerosol can should be
used on engines with multi-layer steel gaskets.
ENGINE GASKET SURFACE PREPARATION
To ensure engine gasket sealing, proper surface
preparation must be performed, especially with the
use of aluminum engine components and multi-layer
steel cylinder head gaskets.
Neveruse the following to clean gasket surfaces:
²Metal scraper
²Abrasive pad or paper to clean cylinder block
and head
²High speed power tool with an abrasive pad or a
wire brush (Fig. 1)NOTE: Multi-Layer Steel (MLS) head gaskets
require a scratch free sealing surface.
Only use the following for cleaning gasket surfaces:
²Solvent or a commercially available gasket
remover
²Plastic or wood scraper (Fig. 1)
²Drill motor with 3M RolocyBristle Disc (white
or yellow) (Fig. 1)
CAUTION: Excessive pressure or high RPM can
damage the sealing surfaces. The mild (white, 120
grit) bristle disc is recommended. If necessary, the
medium (yellow, 80 grit) bristle disc may be used
on cast iron surfaces with care.
CRANKSHAFT DAMPER BOLT ACCESS PLUG
An access plug is located in the right splash shield
(Fig. 2). Remove the plug and insert the proper size
socket, extension and ratchet, when crankshaft rota-
tion is necessary.
ENGINE CORE PLUGS
REMOVAL
Using a blunt tool such as a drift or a screwdriver
and a hammer, strike the bottom edge of the cup
plug (Fig. 3). With the cup plug rotated, grasp firmly
with pliers or other suitable tool and remove plug
(Fig. 3).
Fig. 1 Proper Tool Usage For Surface Preparation
1 ± ABRASIVE PAD
2 ± 3M ROLOCYBRISTLE DISC
3 ± PLASTIC/WOOD SCRAPER
9 - 2 ENGINEPL
GENERAL INFORMATION (Continued)

²When checking #2 main bearing shim #1 & #3
main bearing.
²When checking #3 main bearing shim #2 & #4
main bearing.
²When checking #4 main bearing shim #3 main
bearing.
NOTE: REMOVE ALL SHIMS BEFORE REASSEM-
BLING ENGINE
ALTERNATIVE METHOD
The weight of the crankshaft can be supported by a
jack under the counterweight adjacent to the bearing
being checked.
PLASTIGAGE PROCEDURE
(1) Remove oil film from surface to be checked.
Plastigage is soluble in oil.
(2) Place a piece of Plastigage across the entire
width of the bearing shell in the cap approximately
6.35 mm (1/4 in.) off center and away from the oil
holes (Fig. 5). (In addition, suspected areas can be
checked by placing the Plastigage in the suspected
area). Torque the bearing cap bolts of the bearing
being checked to the proper specifications.
(3) Remove the bearing cap and compare the width
of the flattened Plastigage (Fig. 6) with the metric
scale provided on the package. Locate the band clos-
est to the same width. This band shows the amount
of clearance in thousandths of a millimeter. Differ-
ences in readings between the ends indicate the
amount of taper present. Record all readings taken.
Refer to Engine Specifications.Plastigage gener-
ally is accompanied by two scales. One scale is
in inches, the other is a metric scale.
NOTE: Plastigage is available in a variety of clear-
ance ranges. Use the most appropriate range for
the specifications you are checking.
CONNECTING ROD BEARING CLEARANCE
Engine connecting rod bearing clearances can be
determined by use of Plastigage or equivalent. Thefollowing is the recommended procedure for the use
of Plastigage:
(1) Rotate the crankshaft until the connecting rod
to be checked is at the bottom of its stroke.
(2) Remove oil film from surface to be checked.
Plastigage is soluble in oil.
(3) Place a piece of Plastigage across the entire
width of the bearing shell in the bearing cap approx-
imately 6.35 mm (1/4 in.) off center and away from
the oil hole (Fig. 5). In addition, suspect areas can be
checked by placing plastigage in that area.
(4) Assemble the rod cap with Plastigage in place.
Tighten the rod cap to the specified torque.Do not
rotate the crankshaft while assembling the cap
or the Plastigage may be smeared, giving inac-
curate results.
(5) Remove the bearing cap and compare the width
of the flattened Plastigage (Fig. 6) with the scale pro-
vided on the package. Locate the band closest to the
same width. This band indicates the amount of oil
clearance. Differences in readings between the ends
indicate the amount of taper present. Record all
readings taken. Refer to Engine Specifications.Plas-
tigage generally is accompanied by two scales.
One scale is in inches, the other is a metric
scale. If the bearing clearance exceeds wear
limit specification, replace the bearing.
REPAIR OF DAMAGED OR WORN THREADS
Damaged or worn threads (including aluminum
head spark plug threads) can be repaired. Essen-
tially, this repair consists of drilling out worn or
damaged threads, tapping the hole with a special
Heli-Coil Tap, (or equivalent) and installing an insert
into the tapped hole. This brings the hole back to its
original thread size.
CAUTION: Be sure that the tapped holes maintain
the original centerline.
Heli-Coil tools and inserts are readily available
from automotive parts jobbers.
HYDROSTATIC LOCKED ENGINE
When an engine is suspected to be hydrostatically
locked, regardless of what caused the problem, the
following steps should be used.
CAUTION: DO NOT use starter motor to rotate the
engine, severe damage may occur.
(1) Inspect air cleaner, induction system and
intake manifold to insure system is dry and clear of
foreign material.
(2) Remove negative battery cable.
(3) Place a shop towel around the spark plugs
when removing them from the engine. This will catch
Fig. 6 Clearance Measurement
PLENGINE 9 - 5
GENERAL INFORMATION (Continued)

make sure the dye is thoroughly mixed as indicated
with a bright yellow color under a black light.
(3) Using a black light, inspect the entire engine
for fluorescent dye, particularly at the suspected area
of oil leak. If the oil leak is found and identified,
repair per service manual instructions.
(4) If dye is not observed, drive the vehicle at var-
ious speeds for approximately 24 km (15 miles), and
repeat inspection.
(5)If the oil leak source is not positively
identified at this time, proceed with the air leak
detection test method as follows:
²Disconnect the fresh air hose (makeup air) at
the cylinder head cover and plug or cap the nipple on
the cover.
²Remove the PCV valve hose from the cylinder
head cover. Cap or plug the PCV valve nipple on the
cover.
²Attach an air hose with pressure gauge and reg-
ulator to the dipstick tube.
CAUTION: Do not subject the engine assembly to
more than 20.6 kpa (3 PSI) of test pressure.
²Gradually apply air pressure from 1 psi to 2.5
psi maximum while applying soapy water at the sus-
pected source. Adjust the regulator to the suitable
test pressure that provides the best bubbles which
will pinpoint the leak source. If the oil leak is
detected and identified, repair per service manual
procedures.
²If the leakage occurs at the crankshaft rear oil
seal area, refer to the section, Inspection for Rear
Seal Area Leak.
(6) If no leaks are detected, turn off the air supply.
Remove the air hose, all plugs, and caps. Install the
PCV valve and CCV hose. Proceed to next step.
(7) Clean the oil off the suspect oil leak area using
a suitable solvent. Drive the vehicle at various
speeds approximately 24 km (15 miles). Inspect the
engine for signs of an oil leak by using a black light.
INSPECTION FOR REAR SEAL AREA LEAKS
Since it is sometimes difficult to determine the
source of an oil leak in the rear seal area of theengine, a more involved inspection is necessary. The
following steps should be followed to help pinpoint
the source of the leak.
If the leakage occurs at the crankshaft rear oil seal
area:
(1) Disconnect the battery.
(2) Raise the vehicle.
(3) Remove torque converter or clutch housing
cover and inspect rear of block for evidence of oil.
Use a black light to check for the oil leak. If a leak is
present in this area remove transmission for further
inspection.
(a) Circular spray pattern generally indicates
seal leakage or crankshaft damage.
(b) Where leakage tends to run straight down,
possible causes are a porous block, oil galley cup
plug, bedplate to cylinder block mating surfaces
and seal bore. See proper repair procedures for
these items.
(4) If no leaks are detected, pressurized the crank-
case as previously described.
CAUTION: Do not exceed 20.6 kPa (3 psi).
(5) If the leak is not detected, very slowly turn the
crankshaft and watch for leakage. If a leak is
detected between the crankshaft and seal while
slowly turning the crankshaft, it is possible the
crankshaft seal surface is damaged. The seal area on
the crankshaft could have minor nicks or scratches
that can be polished out with emery cloth.
CAUTION: Use extreme caution when crankshaft
polishing is necessary to remove minor nicks and
scratches. The crankshaft seal flange is especially
machined to complement the function of the rear oil
seal.
(6) For bubbles that remain steady with shaft
rotation, no further inspection can be done until dis-
assembled.
(7) After the oil leak root cause and appropriate
corrective action have been identified, refer to Crank-
shaft Oil SealÐRear for proper replacement proce-
dures.
9 - 10 ENGINEPL
DIAGNOSIS AND TESTING (Continued)