TROUBLESHOOTING
F1–59
F1
X: Applicable
Possible factor
Troubleshooting item
Variable valve timing system malfunction (L3 engine
model)
VICS malfunction
Engine overheating
Air cleaner element clogging or restriction
Air leakage from intake-air system (Loose tubes,
cracks, gaskets breakage)
IAC valve improper operation
Throttle body malfunction
VICS malfunction (L3 engine model)
VACS malfunction (L3 engine model)
Vacuum leakage (Vacuum hose damage, misrouting)
Ignition coil malfunction (e.g. open, short or cracks)
Initial ignition timing misadjustment (CKP sensor &
crankshaft pulley misadjustment)
Spark plug malfunction
High-tension leads malfunction (Cracks, open, low
resistance)
CKP sensor is damaged. (e.g. open or short circuits)
Crankshaft pulley is damaged
Improper gap between CKP sensor and crankshaft
Fuel pump malfunction (Mechanically or electrically)
Pressure regulator malfunction
Fuel hoses restriction or clogging
1 Melting of main or other fuses
2 MIL illuminates x x x x x
3 Will not crank
4 Hard to start/lon
crank/erratic start/erratic
crank
x x x x x x xxxxxx
5 Engine stalls. x x x x x x xxxxxxxxxx
6 Cranks normally but will not start x x x x x xxxxxxxxxx
7 Slow return to idle x
8 Engine runs rough/rolling idle x x x x x x x x x xxxxxx
9 Fast idle/runs on x x
10 Low idle/stalls during deceleration x x x
Engine stalls/quits. Acceleration/cruise x x x x x x x x x xxxxxx
Engine runs rough. Acceleration/cruise x x x x x x x x x xxxxxx
Misses Acceleration/cruise x x x x x x x x x xxxxxx
Buck/jerk Acceleration/cruise/dece
leration
xxx x xx x x x xxxxxx
Hesitation/stumble Acceleration x x x x x x x x x xxxxxx
11
Surges Acceleration/cruise x x x x x x x x x xxxxxx
12 Lack/loss of powe
Acceleration/cruise x x x x x x x x x xxxxxx
13 Knockin
/pin
in
Acceleration/cruise x x x
14 Poor fuel economy x x x x x x x
15 Emission compliance x x x x x x x x x
16 High oil consumption/leakage
17 Cooling system
concerns
Overheating
18 Cooling system
concerns
Runs cold
19 Exhaust smoke x x x x x x
20 Fuel odor (in engine compartment) x
21 Engine noise x x x
22 Vibration concerns (engine)
23 A/C does not work sufficiently.
24 A/C is always on or A/C compressor runs
continuously.
25 A/C is not cut off under WOT conditions.
26 Exhaust sulfur smell x x x x
27 Constant voltage
28 Spark plug condition x x x x x x
29 ATX concerns Upshift/downshift
engagement
See Section K, TROUBLESHOOTING
A6E39802002
To Next Page
Loading...
