Okay, this rattling noise in my engine is killing me. Not sure if it's spark knock, a bearing, or what.
'93 4.0, 145K miles.
Symptoms: Rattling noise at high (2500 +) rpm's in 3rd, 4th, and 5th gear. You can run it up to 3500 rpm's in 1st and 2nd gear with no noise. That would make me think that load has something to do with it. In the higher gears, maybe it's pulling a larger load, thus causing the problem.
It also get's more pronounced if you're pulling a trailer with some weight on it.
It kind of sounds like shaking a empty paint can with that ball in it, very fast... T-T-T-T-T-T-T-T....
I spoke with the jeep mechanic of our group, and he suggested I put some 20W50 oil in it to see if that helps with the problem. I'm going to do that tonight probably.
Does spark knock/pre-detonation happen at all rpm ranges? Does load have any effect on it?
Thanks!!
I actually tried to record the noise it's making, but it came out really bad. If you want to try and hear it, click on the link and turn your volume up a little. You have to listen real close and you'll hear it in the background.
Click on Engine Wav
[ 09-28-2001: Message edited by: DanH ]
'93 4.0, 145K miles.
Symptoms: Rattling noise at high (2500 +) rpm's in 3rd, 4th, and 5th gear. You can run it up to 3500 rpm's in 1st and 2nd gear with no noise. That would make me think that load has something to do with it. In the higher gears, maybe it's pulling a larger load, thus causing the problem.
It also get's more pronounced if you're pulling a trailer with some weight on it.
It kind of sounds like shaking a empty paint can with that ball in it, very fast... T-T-T-T-T-T-T-T....
I spoke with the jeep mechanic of our group, and he suggested I put some 20W50 oil in it to see if that helps with the problem. I'm going to do that tonight probably.
Does spark knock/pre-detonation happen at all rpm ranges? Does load have any effect on it?
Thanks!!
I actually tried to record the noise it's making, but it came out really bad. If you want to try and hear it, click on the link and turn your volume up a little. You have to listen real close and you'll hear it in the background.
Click on Engine Wav
[ 09-28-2001: Message edited by: DanH ]