Dodge Ram Truck 1500-2500-3500. Manual — part 1310
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FLEX PLATE
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2235
. . . . . . . . . . . . . . . . . . . . . . . 2236
ROD - PISTON & CONNECTING
. . . . . . . . . . . . . . . . . . . . . . . 2236
. . . . . . . . . . . . . . . . . . . . 2237
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2237
. . . . . . . . . . . . . . . . . . . . . . . . . . 2238
. . . . . . . . . . . . . . . . . . . . . . . . . 2238
. . . . . . . . . . . . . . . . . . . . . . . 2239
RINGS - PISTON
STANDARD PROCEDURE - PISTON RING
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2240
DAMPER - CRANKSHAFT
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2243
. . . . . . . . . . . . . . . . . . . . . . . 2244
COVER - STRUCTURAL
. . . . . . . . . . . . . . . . . . . . . . . 2244
. . . . . . . . . . . . . . . . . . . . . . . . . 2244
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2245
. . . . . . . . . . . . . . . . . . . . . . . 2245
MOUNT - FRONT
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2245
. . . . . . . . . . . . . . . . . . . . . . . 2247
MOUNT - REAR
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2249
. . . . . . . . . . . . . . . . . . . . . . . 2249
LUBRICATION
. . . . . . . . . . . . . . . . . . . . . . . 2250
. . . . . . . . . . . . . . . . . . . . . . . . . 2250
DIAGNOSIS AND TESTING - CHECKING
ENGINE OIL PRESSURE . . . . . . . . . . . . . . 2252
DIAGNOSIS AND TESTING - ENGINE OIL
LEAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2252
OIL
STANDARD PROCEDURE - ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . 2253
FILTER - ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2255
. . . . . . . . . . . . . . . . . . . . . . . 2255
PAN - ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2255
. . . . . . . . . . . . . . . . . . . . . . . 2256
SWITCH - OIL PRESSURE
. . . . . . . . . . . . . . . . . . . . . . 2256
. . . . . . . . . . . . . . . . . . . . . . 2256
. . . . . . . . . . . . . . . . . . . . . . . 2257
. . . . . . . . . . . . . . . . . . . . . . . 2257
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2257
. . . . . . . . . . . . . . . . . . . . . . . 2257
PUMP - ENGINE OIL
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2258
. . . . . . . . . . . . . . . . . . . . . . . 2258
. . . . . . . . . . . . . . . . . . . . . . . . . . 2258
. . . . . . . . . . . . . . . . . . . . . . . . . 2258
. . . . . . . . . . . . . . . . . . . . . . . . . . 2260
. . . . . . . . . . . . . . . . . . . . . . . 2261
MANIFOLD - INTAKE
. . . . . . . . . . . . . . . . . . . . . . . 2261
DIAGNOSIS AND TESTING - INTAKE
. . . . . . . . . . . . . . . . 2261
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2261
. . . . . . . . . . . . . . . . . . . . . . . . . . 2263
. . . . . . . . . . . . . . . . . . . . . . . . . 2263
. . . . . . . . . . . . . . . . . . . . . . . 2263
MANIFOLD - EXHAUST
. . . . . . . . . . . . . . . . . . . . . . . 2264
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2264
. . . . . . . . . . . . . . . . . . . . . . . . . . 2266
. . . . . . . . . . . . . . . . . . . . . . . . . 2266
. . . . . . . . . . . . . . . . . . . . . . . 2266
VALVE TIMING
DESCRIPTION - TIMING DRIVE SYSTEM
OPERATION - TIMING DRIVE SYSTEM
STANDARD PROCEDURE - MEASURING
TIMING CHAIN WEAR . . . . . . . . . . . . . . . . 2269
STANDARD PROCEDURE - ENGINE TIMING
- VERIFICATION . . . . . . . . . . . . . . . . . . . . . 2269
COVER - TIMING
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2274
. . . . . . . . . . . . . . . . . . . . . . . 2275
TIMING CHAIN & SPROCKETS
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2276
. . . . . . . . . . . . . . . . . . . . . . . . . 2280
. . . . . . . . . . . . . . . . . . . . . . . 2281
SHAFT - IDLER
. . . . . . . . . . . . . . . . . . . . . . . . . . . 2284
. . . . . . . . . . . . . . . . . . . . . . . 2284
9 - 2162
ENGINE - 4.7L - SERVICE INFORMATION
DR/DH
ENGINE - 4.7L - SERVICE INFORMATION
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - ENGINE DIAGNOSIS - PERFORMANCE
CONDITION
POSSIBLE CAUSE
CORRECTION
ENGINE WILL NOT START
1. Weak battery
1. Charge or replace as necessary.
2. Corroded or loose battery
connections.
2. Clean and tighten battery
connections. Apply a coat of light
mineral grease to the terminals.
3. Faulty starter.
3. (Refer to 8 - ELECTRICAL/
STARTING - DIAGNOSIS AND
TESTING).
4. Faulty coil or control unit.
4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
5. Incorrect spark plug gap.
5. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG
- CLEANING).
6. Dirt or water in fuel system.
6. Clean system and replace fuel
filter.
7. Faulty fuel pump, relay or wiring.
7. Repair or replace as necessary.
ENGINE STALLS OR ROUGH IDLE
1. Idle speed set to low.
1. (Refer to 14 - FUEL SYSTEM/
FUEL INJECTION/IDLE AIR
CONTROL MOTOR - REMOVAL).
2. Idle mixture too lean or too rich.
2. Refer to Powertrain Diagnosis
Information.
3. Vacuum leak.
3. Inspect intake manifold and
vacuum hoses, repair or replace as
necessary.
4. Faulty coil.
4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
5. Incorrect engine timing.
5. (Refer to 9 - ENGINE/VALVE
TIMING - STANDARD
PROCEDURE).
DR/DH
ENGINE - 4.7L - SERVICE INFORMATION
9 - 2163
CONDITION
POSSIBLE CAUSE
CORRECTION
ENGINE LOSS OF POWER
1. Dirty or incorrectly gapped spark
plugs.
1. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG
- CLEANING).
2. Dirt or water in fuel system.
2. Clean system and replace fuel
filter.
3. Faulty fuel pump.
3. Refer to the Appropriate
Diagnostic Information
4. Blown cylinder head gasket.
4. Replace cylinder head gasket.
5. Low compression.
5. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
6. Burned, warped or pitted valves.
6. Replace as necessary.
7. Plugged or restricted exhaust
system.
7. Inspect and replace as
necessary.
8. Faulty coil.
8. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
ENGINE MISSES ON
ACCELERATION
1. Spark plugs dirty or incorrectly
gapped.
1. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG
- CLEANING).
2. Dirt in fuel system.
2. Clean fuel system.
3. Burned, warped or pitted valves.
3. Replcae as necessary.
4. Faulty coil.
4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
ENGINE MISSES AT HIGH SPEED
1. Spark plugs dirty or incorrectly
gapped.
1. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG
- CLEANING).
2. Faulty coil.
2. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION
COIL - REMOVAL).
3. Dirt or water in fuel system.
3. Clean system and replace fuel
filter.
9 - 2164
ENGINE - 4.7L - SERVICE INFORMATION
DR/DH
DIAGNOSIS AND TESTING - ENGINE DIAGNOSIS - MECHANICAL
CONDITION
POSSIBLE CAUSES
CORRECTIONS
NOISY VALVES
1. High or low oil level in
crankcase.
1. (Refer to LUBRICATION &
MAINTENANCE -
SPECIFICATIONS)
2. Thin or diluted oil.
2. Change oil and filter.
3. Low oil pressure.
3. Check oil pump, if Ok, check rod
and main bearings for excessive
wear.
4. Dirt in lash adjusters.
4. Replace as necessary.
5. Worn rocker arms.
5. Replace as necessary.
6. Worn lash adjusters
6. Replace as necessary.
7. Worn valve guides.
7. (Refer to 9 - ENGINE/CYLINDER
HEAD/INTAKE/EXHAUST VALVES
& SEATS - STANDARD
PROCEDURE)
8. Excessive runout of valve seats
on valve faces.
8. (Refer to 9 - ENGINE/CYLINDER
HEAD/INTAKE/EXHAUST VALVES
& SEATS - STANDARD
PROCEDURE)
CONNECTING ROD NOISE
1. Insufficient oil supply.
1. (Refer to LUBRICATION &
MAINTENANCE -
SPECIFICATIONS)
2. Low oil pressure.
2. Check oil pump, if Ok, check rod
and main bearings for excessive
wear.
3. Thin or diluted oil.
3. Change oil and filter.
4. Excessive bearing clearance.
4. Replace as necessary.
5. Connecting rod journal
out-of-round.
5. Service or replace crankshaft.
6. Misaligned connecting rods.
6. Replace bent connecting rods.
MAIN BEARING NOISE
1. Insufficient oil supply.
1. (Refer to LUBRICATION &
MAINTENANCE -
SPECIFICATIONS)
2. Low oil pressure.
2. Check oil pump, if Ok, check rod
and main bearings for excessive
wear.
3. Thin or diluted oil.
3. Change oil and filter.
4. Excessive bearing clearance.
4. Replace as necessary.
5. Excessive end play.
5. Check thrust washers for wear.
6. Crankshaft journal out-of round.
6. Service or replace crankshaft.
7. Loose flywheel or torque
converter.
7. Tighten to correct torque
DR/DH
ENGINE - 4.7L - SERVICE INFORMATION
9 - 2165
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