1996 Jeep Grand Cherokee Jeep Cherokee engine surges
Jeep Cherokee engine surges
What is your question?
I have a 1996 Jeep Grand Cherokee, 4.0 that has been running great until three months ago. Suddenly every time I come to a stop the engine does a little surg. It will also do this while stopped at a stop sign after about 30 seconds. I’ve replaced/cleaned the throttle body, the idle control valve, the fuel filter, put in a refurbished computer and given it a tune-up. The car runs great and has no other issues so it doesn’t effect the overall performance. What’s more confusing is it won’t do this while it cold, only once it warms up. Has anyone had this experience. Looking for suggestions. Thanks
What makes this problem better or worse?
doesn't do it when cold, only once it warms up
How long has your 1996 Jeep Grand Cherokee had this problem?
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Hello, too many repairs made and not enough testing.
The fact it happens when it's warm only indicates it's a condition caused by "inputs" -- that is, sensors and components that operate and provide data to the control module which ultimate affects fuel, air and spark mixture ratios.
Replacing the "refurbished computer" seems like a big waste of money and may even make things worse.
Hands on testing with proper test equipment is needed to monitor component operations and see what's going on.
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Use that link to find some shops near you who can help.
