Question about 1998 Jeep Cherokee
After installing my new computer .... when i went to crank it up ... while turning over there was a metal grinding sound... went i pressed the gas pedal after it started there was a lot of stumbling and hesitation.... it sounded like there was popcorn poppin in the air housing... what could that be???
Grinding noise likely came from the starter drive and flywheel. That in itself can cause a problem as damaged flywheel teeth can cause incorrect signals to the crank position sensor and therefore bad info to the computer.
Some poor running can be attributed to the computer itself as most need to be "flashed" by a dealer to program it to your drivetrain.
I also question the reason for the computer replacement as there are many symptoms that appear to be computer related but in reality are caused by a failed sending unit (sensor), bad connection, broken, grounded or shorted wire or blown fuse that are sometimes missed during diagnosis, resulting in a computer replacement and the same problem that caused you to change it re-surfacing.
I can't tell you what the problem is because to give you that answer would require many hours of actual hands on testing. Chilton has decent wiring and test procedures in their manual. I suggest you buy it if you haven't already. As you "prove out" each system, make notes so you can develop a "picture" of what you found. That often helps bring things together.
By the way...What was the original problem?
Posted on May 12, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Mar 02, 2017 | 1999 Pontiac Grand Am GT
Nov 24, 2011 | 2000 Subaru Outback
Jul 13, 2011 | Buick LeSabre Cars & Trucks
Jun 25, 2011 | Oldsmobile Intrigue Cars & Trucks
Mar 27, 2011 | Dodge Caravan Cars & Trucks
May 19, 2010 | 1998 Jeep Cherokee
Jul 14, 2009 | 1996 Toyota Tacoma
May 10, 2009 | 1995 Oldsmobile Eighty Eight
Aug 06, 2016 | 1998 Jeep Cherokee
118 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: