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Derrick, ASE Certified Technician
Category: Jeep
Satisfied Customers: 923
Experience:  A.S.-Automotive Analysis A6-Electrical A8/L1-Engine Performance Cert., CA Chrysler/Jeep/Dodge Tech
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1998 cherokee sport: 4.0 liter cranks, starts, then dies

Customer Question

1998 cherokee sport 4.0 liter cranks, starts, then dies. will not continue to run even when given gas. what is most likely culprit? crank sensor? fuel pump?
Submitted: 8 years ago.
Category: Jeep
Expert:  Derrick replied 8 years ago.

Hi there,


This is a relatively common problem on these Jeeps. You most likely have a bad/failing crankshaft position sensor. The crankshaft position sensor tells the PCM (Powertrain Control Module) that the engine is turning, so it will fire spark and fuel. Without that signal the PCM will not supply fuel/spark and as a result, you get an intermittent stalling or no-start condition.


Here is where the sensor is located:


I hope this helps! Let me know if you have any more questions!