Turning over but won't fire?
10-05-2015, 07:40 AM
#1
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Year: 1996
Model: Cherokee
Engine: 4.0
Turning over but won't fire?
For a while, the jeep was bogging down, misfiring and had a really rough idle. Now it won't start at all.
Its turning over but wont fire. Pulled the plugs and I have a spark and fuel is definitely getting through.
Thought maybe crank position sensor, but would I have a spark if thing was out?
Thanks, Matt.
btw, 93' 2.5 4cyl 5 speed
Its turning over but wont fire. Pulled the plugs and I have a spark and fuel is definitely getting through.
Thought maybe crank position sensor, but would I have a spark if thing was out?
Thanks, Matt.
btw, 93' 2.5 4cyl 5 speed
10-05-2015, 07:44 AM
#2
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Crisp blue spark or yellowish spark?
10-05-2015, 08:03 AM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Needs to be blue. Your coil may be taking a dive on you.
Last time you replaced cap, rotor, and wires?
Last time you replaced cap, rotor, and wires?
10-05-2015, 08:10 AM
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Year: 1996
Model: Cherokee
Engine: 4.0
10-05-2015, 08:14 AM
#6
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I would at least replace the maintenance items.
See what brand name is on your coil. If it's Magnetti-Marelli, I think they were the bad ones.
See what brand name is on your coil. If it's Magnetti-Marelli, I think they were the bad ones.
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