Question about 1997 Jeep Wrangler
Background: Bought this jeep it had a nuked engine. #1 Piston exploded, 10 qts of fluid...water and oil (guess he kept trying to keep the heat down). When I pulled the intake and exhaust manifold...oil ran out...So, oil in exhaust...looked like a fogger for about 30 min-1 hr when I first started the new engine. Replaced the head, block, exhaust man and intake manifold with a 2.5 L from a Jeep Cherokee. Runs pretty good as I have worked out a few bugs. When running down the highway at 55+ in 5th gear and hit a hill, the engine can't keep up the speed...not even down-shifting to 4th...it is pretty bad. I have checked the firing order and vac lines. Like I said, it runs great at lower speeds or on flat terrain. Thanks
I am assuming that you have no issues with the engine whatsoever, then the only possible areas to check would be:
1. axle gear ratio - to my knowledge a Wrangler would be 4.11 while some Cherokees could be anywhere from 3.54-4.88;
2. flywheel - a lighter flywheel could cause the engine to loose easily its momentum hence difficulty on an a rise.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
Posted on May 25, 2008
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jul 01, 2015 | 2005 Jeep Grand Cherokee
Dec 21, 2014 | 2004 Chevrolet TrailBlazer
Aug 28, 2012 | 1997 Chevrolet Cavalier
Nov 20, 2010 | 1989 Chevrolet G20
Nov 10, 2010 | 1998 Jeep Wrangler
Oct 19, 2010 | 1998 Jeep Cherokee
Sep 28, 2010 | 1996 Jeep Grand Cherokee
Feb 22, 2010 | 2004 Jeep Liberty
210 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: