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26 INTRODUCTION AND MASTER TROUBLESHOOTlNG - Master Troubleshooting
ENGINE HESITATES OR POOR ACCELERATION
Symptom Probable cause
Engine hesitates or
poor acceleration
-I
Ignition system problem
Vacuum leaks
l Purge control valve hose
l Vacuum hoses
- intake manifold
l Air intake plenum
* Carburetor or throttle body
l EGRvalve
ENGINE DIESELING
Reference
page or remedy
8-147 to 149
Repair as
necessary
Air cleaner clogged
Fuel line clogged 113.10
1442.99
Carburetor or fuel injection system problem
Auxiliary acceleration pump faulty (cold engine)
Emission control system problem
l EGR system always on
- High-altitude compensation (HAC) system problem
Engine overheats 14-34.90
14-23
25-77.22.32
7-4
Compression too low g-II.65
I Symptom Probable cause I
Reference
page or remedy
I I I I -..
Engine dieseling (runs after
ignition switch is turned off) Carburetor problems
Incorrect ignition timing 14-34
8-14710 149
EXCESSIVE OIL CONSUMPTION
Symptom Probable cause Reference
page or remedy
Excessive oil consumption Oil leak
Positive crankcaseventilation line clogged
Valve stem seal worn or damaged
Valve stem worn
Piston ring worn or damaged Repair as
necessary
o-13
Replace
Replace
9-43
1 TSB Revision
INTRODUCTION AND MASTER TROUBLESHOOTING - Master Troubleshooting 27
POOR FUEL MILEAGE
Symptom Probable cause Reference
page or remedy
Poor fuel mileage Fuel leak Repair as
necessary
I
1 Air cleaner clogged
1 Ignition problems 1 11-3.10 1
1 8-147to 149 1
Carburetor or fuel injection system problems 1434.90
I
Compression too low
1 g-II.65 1
Tires improperly inflated 1 22-2
I
Clutch slips
16-4 I
Brakes drag 1 5-13 I
NOISE
Probable cause Reference
page or remedy
Noise Loose bolts and nuts Retighten as
necessary
I
1 Enaine noise
I 9-11 I
HARD STEERING
Symptom
Hard steering Probable cause
Loose power steering oil pump belt
Low fluid level
Air in power steering system
Low tire pressure
Excessive turning resistance of upper or lower ball joint
Excessivelytight linkage ball joint
Improperfrontwheel alignment
Excessive turning resistance of tie-rod ball joint
No lubricantion of tie-rod
Sticky flow control valve
No lubrication of idler arm Reference
page or remedy
19-10
19-11
19-11
22-2
2-27
1937
2-13
19-38 ’
Lubricate
19-33
19-39
) TSB Revision
