fuel pump CHRYSLER CARAVAN 2002 Owner's Manual

POWERTRAIN CONTROL MODULE C2 (GAS) - GRAY/GRAY 40 WAY
CAV CIRCUIT FUNCTION
41 V37 18VT SPEED CONTROL SWITCH SIGNAL
42 C18 18LB/BR A/C PRESSURE SENSOR SIGNAL
43 K900 18DB/DG SENSOR GROUND
44 F888 18BR/PK 8 VOLT SUPPLY
45 - -
46 A109 18OR/RD FUSED B(+)
47 - -
48 K40 18BR/LG (2.4L) IDLE AIR CONTROL NO. 3 DRIVER
49 K60 18VT/LG (2.4L) IDLE AIR CONTROL NO. 2 DRIVER
49 K39 18VT/DG (3.3L/3.8L) IDLE AIR CONTROL NO. 1 DRIVER
50 Z131 18BK/DG GROUND
51 K141 18DB/YL OXYGEN SENSOR 1/2 SIGNAL
52 - -
53 - -
54 - -
55 - -
56 V36 18VT/YL SPEED CONTROL VACUUM SOLENOID CONTROL
57 K39 18VT/DG (2.4L) IDLE AIR CONTROL NO. 1 DRIVER
57 K60 18VT/LG (3.3L/3.8L) IDLE AIR CONTROL NO. 2 DRIVER
58 K59 18BR/DG (2.4L) IDLE AIR CONTROL NO. 4 DRIVER
59 D25 18WT/VT PCI BUS
60 - -
61 F855 18PK/YL 5 VOLT SUPPLY
62 B29 18DG/WT SECONDARY BRAKE SWITCH SIGNAL
63 T10 18DG/LG (EATX) TORQUE MANAGEMENT REQUEST SENSE
64 C13 18LB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL
65 D21 18WT/BR SCI TRANSMIT
66 N7 18DB/OR VEHICLE SPEED SENSOR SIGNAL
67 K51 18BR/WT AUTOMATIC SHUT DOWN RELAY CONTROL
68 K52 18DB/WT EVAPORATIVE EMISSION SOLENOID CONTROL
69 - -
70 K70 18DB/BR EVAPORATIVE EMISSION SOLENOID SENSE
71 - -
72 K107 18VT/WT (EXCEPT
BUILT-UP-EXPORT)LEAK DETECTION PUMP SWITCH SENSE
73 K173 18BR/VT RADIATOR FAN RELAY CONTROL
74 K31 18BR FUEL PUMP RELAY CONTROL
75 D20 18WT/LG SCI RECEIVE
76 T41 18YL/DB PARK/NEUTRAL POSITION SWITCH SENSE (TRS T41)
77 K106 18VT/WT (EXCEPT
BUILT-UP-EXPORT) (2.4L EATX W/ABS)LEAK DETECTION PUMP SOLENOID CONTROL
77 K106 18VT/LB (EXCEPT
BUILT-UP-EXPORT) (EXCEPT 2.4L EATX
W/ABS)LEAK DETECTION PUMP SOLENOID CONTROL
78 K54 18DB/WT (ATX) TORQUE CONVERTER CLUTCH SOLENOID CONTROL
79 - -
80 V35 18VT/OR SPEED CONTROL VENT SOLENOID CONTROL
RS8W-80 CONNECTOR PIN-OUTS8W-80-95
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CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Driver Power Seat Front Riser
MotorRD At Seat N/S
Driver Power Seat Horizontal Motor BK At Seat N/S
Driver Power Seat Rear Riser
MotorRD At Seat N/S
Driver Power Seat Recliner Motor GN At Seat N/S
Driver Power Seat Switch GN At Switch N/S
Driver Power Window Motor RD At Motor N/S
Driver Power Window Switch GN At Switch N/S
Driver Power Window Switch
(RHD)NAT At Switch N/S
Driver Seatbelt Switch WT At Switch on Seat Harness N/S
Driver Seatbelt Tensioner On Seat Harness N/S
EGR Solenoid (Diesel) BK Above Transmission
Right Side of EngineN/S
EGR Solenoid GY Above Transmission
Right Side of Engine9, 10, 11, 13
Electric Wiper De-Icer-C1 WT Right Side Instrument Panel 15, 1923
Electric Wiper De-Icer-C2 WT Left Side Instrument Panel 15, 16, 22
Engine Control Module C1 (Diesel) BK Right Side of Engine 11
Engine Control Module C2 (Diesel) BK Right Side of Engine 11
Engine Coolant Temperature
Sensor (Gas)BK On Cylinder Block N/S
Engine Coolant Temperature
Sensor (Diesel)BL On Cylinder Block 11
Engine Oil Pressure Sensor
(Diesel)BK Rear of Engine 12
Engine Oil Pressure Switch (Gas) LTGN On Cylinder Block 9
Engine Oil Temperature Sensor
(Diesel)BK Rear of Engine 12
EVAP/Purge Solenoid BK Right Motor Mount 9, 13
Evaporator Temperature Sensor BK Right Side of HVAC N/S
Floor Console Lamp BK At Lamp N/S
Floor Console Power Outlet RD At Front Console N/S
Front Blower Module C1 (ATC) BK On HVAC N/S
Front Blower Module C2 (ATC) BK On HVAC N/S
Front Cigar Lighter RD/NAT Rear of Lighter 15, 18, 20
Front Reading Lamps/Switch BK At Switch N/S
Front Washer Pump Motor BK Right Fender Well 3
Fuel Heater (Diesel) BK Left Rear Engine Compartment N/S
Fuel Injector No.1 BK At Fuel Injector N/S
Fuel Injector No.1 (Diesel) BK At Fuel Injector 11
Fuel Injector No.2 BK At Fuel Injector N/S
Fuel Injector No.2 (Diesel) BK At Fuel Injector 11
8W - 91 - 4 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONRS
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
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CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Fuel Injector No.3 BK At Fuel Injector N/S
Fuel Injector No.3 (Diesel) BK At Fuel Injector 11
Fuel Injector No.4 BK At Fuel Injector N/S
Fuel Injector No.4 (Diesel) BK At Fuel Injector 11
Fuel Injector No.5 BK At Fuel Injector N/S
Fuel Injector No.6 BK At Fuel Injector N/S
Fuel Pump Module LTGY Side of Fuel Tank N/S
Fuel Pressure Sensor (Diesel) BK Top Left of Engine 11
Generator BK Rear of Generator 10, 11, 13, 14
Glove Box Lamp BL Rear of Glove Box 18, 24
Glow Plug Relay (Diesel) BK Near Battery N/S
Halo Lamp WT Steering Column 15, 16, 17, 18, 26
Headlamp Switch BK Rear of Switch 15, 16, 25
Headlamp Washer Pump Motor At Motor N/S
High Note Horn BK Left Frame Rail 5
High Pressure Fuel Pump (Diesel) Rear of Pump 11
Hood Ajar Switch BK Left Fender 6
Idle Air Control Motor (2.4L) BK On Throttle Body 9
Idle Air Control Motor (3.3/3.8L) BK On Throttle Body 13
Ignition Coil Pack 2.4L BK Top of Valve Cover 9, 10
Ignition Coil Pack 3.3L, 3.8L DKGY Top of Engine 14
Ignition Switch BK Rear of Switch at Steering Column 15, 16, 17, 18, 26
Inlet Air Temperature Sensor BK Top Left of Engine N/S
Instrument Cluster BK Rear of Cluster 15, 16, 23
Instrument Panel Switch Bank BK Right Center of Instrument Panel 15, 18, 20
Instrument Panel Power Outlet NAT Center of Instrument Panel N/S
Integrated Power Module C1 LTGN Left Fender Shield 7
Integrated Power Module C2 GN/BL Left Fender Shield 7
Integrated Power Module C3
(Diesel)YL/RD Left Fender Shield 7
Integrated Power Module C3 (Gas) NAT/RD Left Fender Shield 7
Integrated Power Module C4 BL Left Fender Shield 7
Integrated Power Module C5 BK Left Fender Shield 7
Integrated Power Module C6 NAT Left Fender Shield 7
Integrated Power Module C7 BK/RD Left Fender Shield 7
Integrated Power Module C8 OR Left Fender Shield 7
Integrated Power Module C9 BK Left Fender Shield 7
Knock Sensor GY Front of Cylinder Block N/S
Leak Detection Pump LTGY At Pump 9, 10 14
Left B Pillar Switch GY Left B Pillar 34
Left Cinch/Release Motor GY Left Sliding Door N/S
Left Combination Relay BK Left Rear Quarter Panel N/S
RS8W-91 CONNECTOR/GROUND/SPLICE LOCATION8W-91-5
CONNECTOR/GROUND/SPLICE LOCATION (Continued)
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DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - PERFORMANCE
CONDITION POSSIBLE CAUSE CORRECTION
ENGINE WILL NOT START 1. Weak battery. 1. Test battery. Charge or replace
as necessary. (Refer to 8 -
ELECTRICAL/BATTERY SYSTEM -
DIAGNOSIS AND TESTING)
2. Corroded or loose battery
connections.2. Clean and tighten battery
connections. Apply a coat of light
mineral grease to terminals.
3. Faulty starter. 3. Test starting system. (Refer to 8 -
ELECTRICAL/STARTING -
DIAGNOSIS AND TESTING)
4. Faulty coil(s) or control unit. 4. Test and replace as needed.
(Refer to Appropriate Diagnostic
Information)
5. Incorrect spark plug gap. 5. Set gap. (Refer to 8 -
ELECTRICAL/IGNITION CONTROL
- SPECIFICATIONS)
6. Contamination in fuel system. 6. Clean system and replace fuel
filter.
7. Faulty fuel pump. 7. Test fuel pump and replace as
needed. (Refer to Appropriate
Diagnostic Information)
8. Incorrect engine timing. 8. Check for a skipped timing
belt/chain.
ENGINE STALLS OR IDLES
ROUGH1. Idle speed too low. 1. Test minimum air flow. (Refer to
Appropriate Diagnostic Information)
2. Incorrect fuel mixture. 2. (Refer to Appropriate Diagnostic
Information)
3. Intake manifold leakage. 3. Inspect intake manifold, manifold
gasket, and vacuum hoses.
4. Faulty ignition coil(s). 4. Test and replace as necessary.
(Refer to Appropriate Diagnostic
Information)
9 - 4 ENGINE 2.4LRS
ENGINE 2.4L (Continued)
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CONDITION POSSIBLE CAUSE CORRECTION
ENGINE LOSS OF POWER 1. Dirty or incorrectly gapped plugs. 1. Clean plugs and set gap.
2. Contamination in fuel system. 2. Clean system and replace fuel
filter.
3. Faulty fuel pump. 3. Test and replace as necessary.
(Refer to Appropriate Diagnostic
Information)
4. Incorrect valve timing. 4. Correct valve timing.
5. Leaking cylinder head gasket. 5. Replace cylinder head gasket.
6. Low compression. 6. Test compression of each
cylinder.
7. Burned, warped, or pitted valves. 7. Replace valves.
8. Plugged or restricted exhaust
system.8. Perform exhaust restriction test.
(Refer to 11 - EXHAUST SYSTEM -
DIAGNOSIS AND TESTING) Install
new parts, as necessary.
9. Faulty ignition coil(s). 9. Test and replace as necessary.
(Refer to Appropriate Diagnostic
Information)
ENGINE MISSES ON
ACCELERATION1. Dirty or incorrectly gapped spark
plugs.1. Clean spark plugs and set gap.
2. Contamination in Fuel System. 2. Clean fuel system and replace
fuel filter.
3. Burned, warped, or pitted valves. 3. Replace valves.
4. Faulty ignition coil(s). 4. Test and replace as necessary.
(Refer to Appropriate Diagnostic
Information)
ENGINE MISSES AT HIGH SPEED 1. Dirty or incorrect spark plug gap. 1. Clean spark plugs and set gap.
2. Faulty ignition coil(s). 2. Test and replace as necessary.
(Refer to Appropriate Diagnostic
Information)
3. Dirty fuel injector(s). 3. Test and replace as necessary.
(Refer to Appropriate Diagnostic
Information)
4. Contamination in fuel system. 4. Clean system and replace fuel
filter.
RSENGINE 2.4L9-5
ENGINE 2.4L (Continued)
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INSTALLATION - ENGINE ASSEMBLY
(1) Position engine and transmission assembly
under vehicle and slowly lower the vehicle over the
engine and transmission.
(2) Align engine and transmission mounts to
attaching points. Install mounting bolts at the right
(Fig. 9) and left mounts (Fig. 10).
(3) Remove safety straps.
(4) Slowly raise vehicle enough to remove the
engine dolly and cradle Special Tools 6135 and 6710.
(5) Install rear mount bracket and rear mount
through bolt. (Refer to 9 - ENGINE/ENGINE
MOUNTING/REAR MOUNT - INSTALLATION)
(6) Install the flex plate to torque converter bolts.
(7) Install structural collar. (Refer to 9 - ENGINE/
ENGINE BLOCK/STRUCTURAL COVER - INSTAL-
LATION)
(8) Install front mount bracket and front mount
through bolt. (Refer to 9 - ENGINE/ENGINE
MOUNTING/FRONT MOUNT - INSTALLATION)
(9) Connect exhaust system to manifold (Fig. 7).
(10) Install crossmember cradle plate (Fig. 6).
(11) Install new oil filter.
(12) Install power steering pump and bracket.(13) Connect power steering supply line to pump
and remove pinch-off pliers.
(14) Connect A/C compressor hoses to compressor.
(15) Install accessory drive belts. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION)
(16) Install axle shafts. (Refer to 3 - DIFFEREN-
TIAL & DRIVELINE/HALF SHAFT - INSTALLA-
TION)
(17) Install accessory drive belt splash shield.
(18) Install front wheels and tires.
(19) Remove plugs from transmission cooler hoses
and install transaxle oil cooler line service splice kit.
Refer to instructions included with kit.
(20) Connect the transaxle shift linkage and elec-
trical connectors.
(21) Connect heater hoses (Fig. 5).
(22) Install ground straps.
(23) Connect all engine and throttle body electrical
connections.
(24) Connect all vacuum lines.
(25) Connect the throttle cables.
(26) Connect the fuel line. (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY/QUICK CONNECT FIT-
TING - STANDARD PROCEDURE)
(27) Connect radiator lower and upper hoses.
(28) Install radiator fans. (Refer to 7 - COOLING/
ENGINE/RADIATOR FAN - INSTALLATION)
(29) Fill cooling system. (Refer to 7 - COOLING -
STANDARD PROCEDURE)
(30) Connect battery cables.
(31) Install air cleaner and inlet hose.
Fig. 9 RIGHT MOUNT TO RAIL AND ENGINE
1 - BOLT - MOUNT TO RAIL 68 N´m (50 ft. lbs.)
2 - BOLT - MOUNT TO ENGINE 54 N´m (40 ft. lbs.)
3 - BOLT - MOUNT TO RAIL (HORIZONTAL) 68 N´m (50 ft. lbs.)
4 - RIGHT ENGINE MOUNT
5 - RIGHT FRAME RAIL
Fig. 10 LEFT MOUNT TO FRAME BRACKET
1 - FRAME BRACKET
2 - FRAME RAIL - LEFT
3 - BOLT
4 - TRANSAXLE MOUNT
9 - 16 ENGINE 2.4LRS
ENGINE 2.4L (Continued)
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Possible indications of the cylinder head gasket
leaking between adjacent cylinders are:
²Loss of engine power
²Engine misfiring
²Poor fuel economy
Possible indications of the cylinder head gasket
leaking between a cylinder and an adjacent water
jacket are:
²Engine overheating
²Loss of coolant
²Excessive steam (white smoke) emitting from
exhaust
²Coolant foaming
CYLINDER-TO-CYLINDER LEAKAGE TEST
To determine if an engine cylinder head gasket is
leaking between adjacent cylinders, follow the proce-
dures in Cylinder Compression Pressure Test (Refer
to 9 - ENGINE - DIAGNOSIS AND TESTING). An
engine cylinder head gasket leaking between adja-
cent cylinders will result in approximately a 50±70%
reduction in compression pressure.
CYLINDER-TO-WATER JACKET LEAKAGE TEST
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING WITH COOLANT PRES-
SURE CAP REMOVED.VISUAL TEST METHOD
With the engine cool, remove the coolant pressure
cap. Start the engine and allow it to warm up until
thermostat opens.
If a large combustion/compression pressure leak
exists, bubbles will be visible in the coolant.
COOLING SYSTEM TESTER METHOD
WARNING: WITH COOLING SYSTEM TESTER IN
PLACE, PRESSURE WILL BUILD UP FAST. EXCES-
SIVE PRESSURE BUILT UP, BY CONTINUOUS
ENGINE OPERATION, MUST BE RELEASED TO A
SAFE PRESSURE POINT. NEVER PERMIT PRES-
SURE TO EXCEED 138 kPa (20 psi).
Install Cooling System Tester 7700 or equivalent to
pressure cap neck. Start the engine and observe the
tester's pressure gauge. If gauge pulsates with every
power stroke of a cylinder a combustion pressure
leak is evident.
CHEMICAL TEST METHOD
Combustion leaks into the cooling system can also
be checked by using Bloc-Chek Kit C-3685-A or
equivalent. Perform test following the procedures
supplied with the tool kit.
REMOVAL - CYLINDER HEAD
(1) Perform fuel system pressure release procedure
before attempting any repairs.(Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY - SPECIFICA-
TIONS)
(2) Disconnect battery negative cable.
(3) Drain cooling system. (Refer to 7 - COOLING -
STANDARD PROCEDURE)
(4) Remove air filter housing and inlet tube.
(5) Remove upper intake manifold. (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE MANIFOLD -
REMOVAL)
(6) Remove heater tube support bracket from cyl-
inder head.
(7) Disconnect radiator upper and heater supply
hoses from intake manifold water outlet connections.
(8) Remove accessory drive belts. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL)
(9) Raise vehicle and remove exhaust pipe from
manifold.
(10) Remove power steering pump reservoir and
line support bracket from lower intake manifold and
set aside. Do not disconnect lines.
(11) Remove ignition coil and wires from engine.
(12) Disconnect cam sensor and fuel injector wir-
ing connectors.
Fig. 13 Cylinder Head and Camshafts
1 - CAMSHAFT BEARING CAPS
2 - PLUG
3 - CAMSHAFT
4 - CYLINDER HEAD
5 - CAMSHAFT OIL SEAL
RSENGINE 2.4L9-25
CYLINDER HEAD (Continued)
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²Second All to 68 N´m (50 ft. lbs.)
²Third All to 68 N´m (50 ft. lbs.)
CAUTION: Do not use a torque wrench for the fol-
lowing step.
²Fourth Turn an additional 1/4 Turn,
(5) Install rocker arms. (Refer to 9 - ENGINE/
CYLINDER HEAD/ROCKER ARMS - INSTALLA-
TION)
(6) Install camshafts. (Refer to 9 - ENGINE/CYL-
INDER HEAD/CAMSHAFT(S) - INSTALLATION).
(7) Install cylinder head cover. (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - INSTALLATION)
(8) Install timing belt rear cover and timing belt
idler pulley. (Refer to 9 - ENGINE/VALVE TIMING/
TIMING BELT / CHAIN COVER(S) - INSTALLA-
TION)
(9) Install timing belt and camshaft sprockets.
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT/CHAIN AND SPROCKETS - INSTALLATION)
(10) Connect cam sensor and fuel injectors wiring
connectors.
(11) Install ignition coil and wires. Connect igni-
tion coil wiring connector.
(12) Install power steering pump reservoir and
line support bracket to cylinder head.
(13) Raise vehicle and install the exhaust pipe to
the manifold.
(14) Install accessory drive belts. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION)
(15) Install heater tube support bracket to cylinder
head.
(16) Connect radiator upper and heater hoses to
intake manifold water outlet connections.
(17) Install upper intake manifold. (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE MANIFOLD -
INSTALLATION)
(18) Using new gaskets, install EGR tube and
tighten fasteners to 11 N´m (95 in. lbs.).
Fig. 16 Valve Guide Height
1 - VALVE GUIDE
2 - 13.25 - 13.75 MM
(.521 - .541 IN.)
3 - SPRING SEAT
Fig. 17 Checking Bolts for Stretching (Necking)
1 - STRETCHED BOLT
2 - THREADS ARE NOT STRAIGHT ON LINE
3 - THREADS ARE STRAIGHT ON LINE
4 - UNSTRETCHED BOLT
Fig. 18 Cylinder Head Gasket Positioning
1 - PART NUMBER FACES UP
2 - NO. 1 CYLINDER
Fig. 19 Cylinder Head Tightening Sequence
RSENGINE 2.4L9-27
CYLINDER HEAD (Continued)
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INTAKE MANIFOLD
DESCRIPTION
The intake manifold is a two piece aluminum cast-
ing (Fig. 103) that attaches to the cylinder head with
fasteners. The manifold is a long branch design to
enhance low and mid-range torque
OPERATION
The intake manifold delivers air to the combustion
chambers. This air allows the fuel delivered by the
fuel injectors to ignite when the spark plugs fire.
DIAGNOSIS AND TESTING - INTAKE
MANIFOLD LEAKS
An intake manifold air leak is characterized by
lower than normal manifold vacuum. Also, one or
more cylinders may not be functioning.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR THE FAN.
DO NOT WEAR LOOSE CLOTHING.
(1) Start the engine.
(2) Spray a small stream of water (Spray Bottle) at
the suspected leak area.
(3) If engine RPM'S change, the area of the sus-
pected leak has been found.
(4) Repair as required.
Fig. 101 Front Crankshaft Seal - Installation
1 - PROTECTOR
2 - SEAL
3 - SPECIAL TOOL 6780
Fig. 102 Crankshaft Sprocket - Installation
1 - SPECIAL TOOL 6792
2 - TIGHTEN NUT TO INSTALL
Fig. 103 Intake Manifold - Upper and Lower
1 - UPPER INTAKE MANIFOLD
2 - LOWER INTAKE MANIFOLD
RSENGINE 2.4L9-59
OIL PUMP (Continued)
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DIAGNOSIS AND TESTING - ENGINE DIAGNOSIS - PERFORMANCE
CONDITION POSSIBLE CAUSE CORRECTION
ENGINE WILL NOT START 1. Weak battery. 1. Test battery. Charge or replace
as necessary. (Refer to 8 -
ELECTRICAL/BATTERY SYSTEM -
DIAGNOSIS AND TESTING)
2. Corroded or loose battery
connections.2. Clean and tighten battery
connections. Apply a coat of light
mineral grease to terminals.
3. Faulty starter. 3. Test starting system. (Refer to 8 -
ELECTRICAL/STARTING -
DIAGNOSIS AND TESTING)
4. Faulty coil(s) or control unit. 4. Test and replace as needed.
(Refer to Appropriate Diagnostic
Information)
5. Incorrect spark plug gap. 5. Set gap. (Refer to 8 -
ELECTRICAL/IGNITION CONTROL
- SPECIFICATIONS)
6. Contamination in fuel system. 6. Clean system and replace fuel
filter.
7. Faulty fuel pump. 7. Test fuel pump and replace as
needed. (Refer to Appropriate
Diagnostic Information)
8. Incorrect engine timing. 8. Check for a skipped timing
belt/chain.
ENGINE STALLS OR IDLES
ROUGH1. Idle speed too low. 1. Test minimum air flow. (Refer to
Appropriate Diagnostic Information)
2. Incorrect fuel mixture. 2. (Refer to Appropriate Diagnostic
Information)
3. Intake manifold leakage. 3. Inspect intake manifold, manifold
gasket, and vacuum hoses.
4. Faulty ignition coil(s). 4. Test and replace as necessary.
(Refer to Appropriate Diagnostic
Information)
9 - 78 ENGINE 3.3/3.8LRS
ENGINE 3.3/3.8L (Continued)
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