well i ended up pulling the motor and pulled the oil pan and one of the rod bearing where almost completely gone. everything else looks great, now i found a place that sells rebuilt crankshafts that come with rod and main bearings. but it looks like the connecting rod may have been damaged is it...
another thing i noticed is when its running and knocking i can hear the knocking standing at the back of the jeep through the exhaust, kinda sounds like a ping through the tail pipe, a bad rod bearing wouldn't do that would it??
ya thats what i was thinking, but was just hoping it was the harmonic balancer. but from the looks of it the harmonic balancer it is fine. so i guess ill just have to drop the oil pan and check the rod bearings!! i know you cant really tell by ear but ive had a rob bearing go out in a old ford i...
https://www.youtube.com/watch?v=QhRcVBwgX7w&feature=youtube_gdata_player
I don't have a video of my jeep yet but this video sounds exactly like mine minus the squeal noise.
i have a 03 jeep liberty with the 3.7 v6 and a 116000 miles couple hundred miles ago i noticed a knocking when i would get the motor above 2500rpm.was fine for a while then i took a 5 hours trip going 75 and by time i got there it was knocking at idle and pretty bad when im hit the gas.
so when...
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