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Troubleshooting
2 Leaking EGR valve or plugged PCV valve (see Chapters 1 and 6).
3 Air filter clogged (Chapter 1).
4 Fuel pump not delivering sufficient fuel (Chapter 4).
5 Leaking head gasket. Perform a cylinder compression check (Chap-
ter 2).
6 Timing chain or belt worn (Chapter 2).
7 Camshaft lobes worn (Chapter 2).
8 Valve clearance out of adjustment-Chapter 1 (four-cylinder engine).
9 Valves burned or otherwise leaking (Chapter 2).
10 ignition timing out of adjustment (Chapter 1).
11 ignition system not operating properly (Chapters 1 and 5).
12 Thermostatic air cleaner not operating properly (Chapter 1).
13 Choke not operating properly (Chapters 1 and 4).
14 Dirty or clogged injector(s). Carburetor dirty, clogged or out of adjust-
ment. Check the float level (Chapter 4).
15 idle speed out of adjustment (Chapter 1).
9
Engine misses at idle speed
1 Spark plugs faulty or not gapped properly (Chapter 1).
2 Faulty spark plug wires (Chapter 1).
3 Wet or damaged distributor components (Chapter 1).
4 Short circuits in ignition coil or spark plug wires.
5 Sticking or faulty emissions systems (see Chapter 6).
6 Clogged fuel filter and/or foreign matter in fuel. Remove the fuel filter
(Chapter 1) and inspect.
7 Vacuum leaks at intake manifold or hose connections. Check as de-
scribed in Section 8.
8 Incorrect idle speed (Chapter 1) or idle mixture (Chapter 4).
9 Incorrect ignition timing (Chapter 1).
IO Low or uneven cylinder compression. Check as described in Chapter
2.
11 Choke not operating properly (Chapter 1).
12 Clogged or dirty fuel injectors (Chapter 4).
IO Excessively high idle speed
1 Sticking throttle linkage (Chapter 4).
2 Choke opened excessively at idle (Chapter 4).
3 Idle speed incorrectly adjusted (Chapter 1).
4 Valve clearances incorrectly adjusted -Chapter 1 (four-cylinder en-
gines).
11 Battery will not hold a charge
1 Alternator drivebelt defective or not adjusted properly (Chapter 1).
2 Battery cables loose or corroded (Chapter 1).
3 Alternator not charging properly (Chapter 5).
4 Loose, broken or faulty wires in the charging circuit (Chapter 5).
5 Short circuit causing a continuous drain on the battery.
6 Battery defective internally.
12 Alternator light stays on
1 Fault in alternator or charging circuit (Chapter 5).
2 Alternator drivebelt defective or not properly adjusted (Chapter 1).
13 Alternator light fails to come on when key is turned on
1
Faulty bulb (Chapter 12).
2 Defective alternator (Chapter 5).
3 Fault in the printed circuit, dash wiring or bulb holder (Chapter 12).
14 Engine misses throughout driving speed range
7 Fuel filter clogged and/or impurities in the fuel system. Check fuel fil-
ter (Chapter 1) or clean system (Chapter 4).
2 Faulty or incorrectly gapped spark plugs (Chapter 1).
3 Incorrect ignition timing (Chapter 1).
4 Cracked distributor cap, disconnected distributor wires or damaged I
distributor components (Chapter 1).
5 Defective spark plug wires (Chapter 1).
6 Emissions system components faulty (Chapter 6).
7 Low or uneven cylinder compression pressures. Check as described
in Chapter 2.
8 Weak or faulty ignition coil (Chapter-S).
9 Weak or faulty ignition system (Chapter 5).
10 Vacuum leaks at intake manifold or vacuum hoses (see Section 8).
11 Dirty or clogged carburetor or fuel injector (Chapter 4).
12 Leaky EGR valve (Chapter 6).
13 Carburetor out of adjustment (Chapter 4).
14 Idle speed out of adjustment (Chapter 1).
15 Hesitation or stumble during acceleration
1 Ignition timing incorrect (Chapter 1).
2 Ignition system not operating properly (Chapter 5).
3 Dirty or clogged carburetoror fuel injector (Chapter 4).
4
Lowfuelpressure.Checkfarproperoperationofthefuelpumpandfor
restrictions in the fuel filter and lines (Chapter 4).
5 Carburetor out of adjustment [Chapter 4).
16
Engine stalls
1 Idle speed incorrect (Chapter 1).
2 Fuel filter clogged and/or water and impurities in the fuel system
(Chapter 1).
3 Choke not operating properly (Chapter 1).
4 Damaged or wet distributor cap and wires.
5 Emissions system components faulty (Chapter 6).
6 Faulty or incorrectly gapped spark plugs (Chapter 1). Also check the
spark plug wires (Chapter 1).
7 Vacuum leak at the carburetor, intake manifold or vacuum hoses. .,
Check as described in Section 8.
8 Valve clearances incorre&- Chapter 1 (four-cylinder engine).
17 Engine lacks power
1 incorrect rgnttion taming (Chapter 1).
2 Excessrve play in distributor shah. At the same time check for faulty
distributor cap, wires, etc. (Chapter 1).
3 Faulty or incorrectly gapped spark plugs (Chapter 1).
4 Air filter drrty (Chapter 1).
5 Faulty ignition coil (Chapter 5).
6 Brakes binding (Chapters 1 and 10).
7 Automatictransmission fluid level incorrect, causing slippage (Chap-
ter 1).
8 Clutch slipping (Chapter 8).
9 Fuel filter clogged and/or impunties in the fuel system (Chapters 1
and 4).
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