Isuzu 1999 RODEO Workshop Manual page 1663

6E2–420
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
Step
12 1. Remove spark plugs. Check for wet plugs, cracks,
wear, improper gap, burned electrodes, or heavy
deposits. Refer to Electronic Ignition System .
NOTE: If spark plugs are gas or oil fouled, the cause of
the fouling must be determined before replacing the
spark plugs.
2. If a problem is found, repair as necessary.
Was a problem found?
13 1. Check for a loose ignition coil ground.
Refer to Electronic Ignition System .
2. If a problem is found, repair as necessary.
Was a problem found?
14 1. Remove the ignition coils and check the ignition
coils for cracks or carbon tracking.
2. If a problem is found, replace affected coil(s) as
necessary.
Was a problem found?
15 1. Check IAC operation. Perform the procedure in the
DTC P0506, Step 6 diagnostic table.
2. If a problem is found, repair as necessary.
Was a problem found?
16 1. Check for the following engine mechanical
problems (refer to Engine Mechanical ):
f
Low compression
f
Leaking cylinder head gaskets
f
Worn or incorrect camshaft
f
Camshaft drive belt slipped or stripped
2. If a problem is found, repair as necessary.
Was a problem found?
17 1. Review all diagnostic procedures within this table.
2. If all procedures have been completed and no
malfunctions have been found, review/inspect the
following:
f
Visual/physical inspection
f
Tech 2 data
f
Freeze Frame data/Failure Records buffer
f
All electrical connections within a suspected
circuit and/or system.
3. If a problem is found, repair as necessary.
Was a problem found?
Hard Start Symptom (Cont'd)
Action Value(s) Yes
— Verify repair
— Verify repair
— Verify repair
— Verify repair
— Verify repair
— Verify repair
No
Go to Step 13
Go to Step 14
Go to Step 15
Go to Step 16
Go to Step 17
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