Isuzu 2000 Trooper Workshop Manual page 1386

Step
20 1. Check the PCV valve for proper operation. Refer to
Crankcase Ventilation System .
2. If a problem is found, repair as necessary.
Was a problem found?
21 1. Check the transmission range switch circuit. Use a
Tech 2 and be sure the Tech 2 indicates that the
vehicle is in drive with the gear selector in drive or
overdrive.
2. If a problem is found, diagnose and repair the
transmission range switch as necessary (refer to
4L30-E Automatic Transmission Diagnosis ).
Was a problem found?
22 1. Check the following engine mechanical items.
Refer to Engine Mechanical for diagnosis
procedures:
D
Low compression
D
Sticking or leaking valves
D
Worn camshaft lobe(s)
D
Camshaft drive belt slipped or stripped
D
Incorrect valve timing
D
Worn rocker arms
D
Broken valve springs
2. If a problem is found, repair as necessary.
Was a problem found?
23 1. Check for faulty motor mounts. Refer to Engine
Mechanical for inspection of mounts.
2. If a problem is found, repair as necessary.
Was a problem found?
24 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:
D
Visual/physical inspection
D
Tech 2 data
D
Freeze Frame data/Failure Records butter
D
All electrical connections within a suspected
circuit and/or system
3. If a problem is found, repair as necessary.
Was a problem found?
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Cuts Out, Misses Symptom (Cont'd)
Action Value(s) Yes
— Verify repair
— Verify repair
— Verify repair
— Verify repair
— Verify repair
6E–517
No
Go to Step 21
Go to Step 22
Go to Step 23
Go to Step 24
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