(2004 Jeep Wrangler) When the clutch is engaged and I am accelerating, there is a metal on metal scraping noise from the transmission area. It only occurs loudly enough for it to be heard over other noise during acceleration. It may be constant, but it is not heard during idle. It has also started a slight vibration while traveling at higher speeds, but it is barely noticeable.

SOURCE: jeep wrangler bucking

I had a similiar problem it turned out be the catalytic converter. I believe there was a recall for this problem.

Gary Loney

• 122 Answers
• Posted on Feb 01, 2009

SOURCE: 2005 Jeep wrangler w/rough idle and hesitates when you accelerate

try fuel injectors....run a bottle or two with full tank through it and see if that dont solve the problemo.....

SOURCE: 2004 Jeep Wrangler - Clunking Noise when shifting out of Park

It could be lash in the differential which is normal, but it could also be a loose u-joint in the driveshaft. Check the rear driveshaft u-joints.

SOURCE: My 1991 Jeep Wrangler 4 cylinder 5 speed manual

There could be a number of culprits. My first suggestion is to replace your fuel filter. It may be so clogged that idle speed doesn't draw enough petro to keep cylinders happy. Your fuel pump might be on the blink too. Lastly, you might want to inspect your Throttle Body Injector (TBI). It, too, could be clogged and starving the engine of fuel. Somehow, you've got a fuel starvation issue at idle speeds. Good luck.

SOURCE: 95 jeep wrangler splutters, jerks, backfires during acceleration

The ECU controls all of that. When they start to go bad they do very strange things that are hard to diagnose. They run about $300 bucks of you do it yourself. They are simple to do. Shop around because it is an electrical component and many places wont warranty them but some places do if your lucky you can find one. I also would not rule out your timing or distributor. I dont know you or what you have checked but could be the rotor or could be carbon tracking inside the distributor. Even the slightest crack in the cap can mess everthing up.