Question about 1991 Jeep Cherokee Briarwood
Just put in a different motor, and had a problem with the computer, so i installed one from a 91 wrangler, and it runs fine for awhile and after 10 mins of driving it around it will stall and when u try and restart it, it will run, but misses and back fires, but if u let it sit for an hour, it will start right up with no problems??? any advice??
Providing that all sensors on the new engine match what you had on old one, You must match the computer to the vehicle it's in. (the computer for my 91 will not run my 95, but the 95 will operate the 91, even though both units appear to be identical) Most scrapyards and parts dealers, have a list of what fits what. Unless the motor you swapped in was a known good one, I would also suspect a possible problem such as a worn timing chain, but definitely would not investigate that 'till you have the correct control system in place. If your old computer was "fried" you must also determine the cause of that condition before putting a new one in, or you could damage that one too.
Posted on Jan 17, 2009
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