Question about 1997 Jeep Grand Cherokee
Had new coil replaced ,thermostat,crank sensor and coolant sensor but it still goes dead once you excellorrates
You say you HAD new coil replaced
So the shop you paid put the problem
in your vehicle?
The other parts don't seem related--unless you
have some reason they were changed
Without the vehicle to test & you saying your doing
you own work --we can't help
Posted on Dec 06, 2012
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Posted on Jan 02, 2017
SOURCE: Jeep GCL Backfires Stalls
Aaron, I had the same problem. It is the most expensive part of course the computer. I replaced everything as well till I replaced it. They are remanufactured and have had problems with them as well. I am on my third one now at 200k miles. Oh and by the way it does not show up on the diagnostic check. Good luck
Posted on Dec 01, 2008
Put a vacuum gauge on it and see if you have a steady reading. You may have a bad cam lobe or partially burned valve which will show up as a quickly fluctuating vacuum reading. Backfiring is generally caused by the above or by the ignition being too far advanced (yours is not adjustable but if you had the distributor out?, you may have put it in one tooth off.)
Posted on Mar 05, 2009
since its a 1997 your jeep has EFI, electronic fuel injection. The most probable reason for your troubles would be the injectors or a problem with the computer controling them, not allowing enough gas to be pushed into the cylinder causing stalling or lack of power, also too much gas iin the cylinder can lead to back firing and stalling. This would also explain the reason it takes so long to start back up some times, all the excess gas in the cylinder is flooding the motor and u have to wait till the gas disipates till the engine will turn over.
Posted on Mar 23, 2009
The likely answer to your problem is that you have an intermittent disconnect in the ignition system. If power supply to the ignition system drops out, some fuel still goes through and when power returns it ignites in the exhaust resulting in a backfire. I would look for a bad ignition switch, or other loose connection that could me making/breaking contact intermittently.
Posted on Jun 23, 2009
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