Troubleshooting item
1
Melting of main or other fuses
2
MIL illuminates
X
X
X
X
X
X
X
3
Will not crank
4
Hard to start/long crank/erratic start/erratic crank
X
5
Engine stalls
After start/at idle
X
X
X
X
X
6
Cranks normally but will not start
X
X
X
X
X
7
Slow return to idle
X
8
Engine runs rough/rolling idle
X
X
X
X
9
Fast idle/runs on
10
Low idle/stalls during deceleration
11
Engine stalls/quits
Acceleration/cruise
X
X
X
Engine runs rough
Acceleration/cruise
X
X
X
Misses
Acceleration/cruise
X
X
X
Buck/jerk
Acceleration/cruise/ deceleration
X
X
X
Hesitation/stumble
Acceleration
X
X
X
Surges
Acceleration/cruise
X
X
X
X
12
Lack/loss of power
Acceleration/cruise
X
X
X
X
13
Knocking/pinging
Acceleration/cruise
X
X
X
14
Poor fuel economy
X
X
X
X
X
X
15
Emission compliance
X
X
X
X
16
High oil consumption/leakage
X
X
X
17
Cooling system concerns
Overheating
X
X
X
X
X
18
Cooling system concerns
Runs cold
X
X
19
Exhaust smoke
X
X
X
20
Fuel odor (in engine compartment)
21
Engine noise
X
X
X
22
Vibration concerns (engine)
X
X
X
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 wide open throttle conditions
26
Exhaust sulphur smell
X
27
Spark plug condition
X
X
28
ATX concerns
Upshift/downshift/engagement
