92 stalls after warmed up
03-22-2011, 05:56 PM
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Year: 1992
Model: Cherokee
Engine: 4.0
92 stalls after warmed up
It starts and runs fine but when it warms up it stalls and hesitates if revved over 1100rpms any body have any ideas
03-22-2011, 06:02 PM
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Year: 1999
Model: Cherokee
Engine: 4.0
If this only happens when engine is hot, you most likely are suffering from "thermal" (heat related) failure.
If it is more of a hesitation, I would test the ignition coil. If it stalls, the crankshaft position sensor.
Your coil can be tested with a manual outlining the procedure and a meter. You test for primary/secondary resistances.
Both of the above components can suffer from thermal failure and are primary suspects.
If both of those check out, the #3 suspect is the "camshaft position sensor" located inside of the distributor.
And with all of the above advice, you absolutely must verify fuel delivery WITH A GAUGE. Verify your readings with factory spec.
If it is more of a hesitation, I would test the ignition coil. If it stalls, the crankshaft position sensor.
Your coil can be tested with a manual outlining the procedure and a meter. You test for primary/secondary resistances.
Both of the above components can suffer from thermal failure and are primary suspects.
If both of those check out, the #3 suspect is the "camshaft position sensor" located inside of the distributor.
And with all of the above advice, you absolutely must verify fuel delivery WITH A GAUGE. Verify your readings with factory spec.
03-22-2011, 06:06 PM
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
checking to see if fuel pressure drops when warm might be fuel pump is getting ready to crap out
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