Hollow sounding engine knock!!
02-03-2012, 04:53 PM
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Hollow sounding engine knock!!
I have a 98 grand Cherokee with engine knock. I have removed the inspection cover on the bell housing and checked the flex plate for tightness or crack. Saw none. Any ideas anyone!
02-03-2012, 09:54 PM
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
I would double check the flexplate, they like to break around where it bolts to the crank. Does it make noise at idle? A rod knock usually shows up at 1500-2000rpm with no load on the engine.
02-04-2012, 01:00 AM
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The sound seems to be there but very faint and as I bring the rpms up it gets louder. When i checked the flex plate all the bolts where tight, but I could not see the bolt area around the cam, is there a trick? I also ran it and watched the flex wheel spin at idle and it doesn't wobble, it seems to run true! I did notice that my manifold is cracked clear through at the cross over
02-05-2012, 01:05 PM
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Originally Posted by TonyP
The sound seems to be there but very faint and as I bring the rpms up it gets louder. When i checked the flex plate all the bolts where tight, but I could not see the bolt area around the cam, is there a trick? I also ran it and watched the flex wheel spin at idle and it doesn't wobble, it seems to run true! I did notice that my manifold is cracked clear through at the cross over
02-05-2012, 04:07 PM
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
[QUOTE=TonyP;1510335]The sound seems to be there but very faint and as I bring the rpms up it gets louder. When i checked the flex plate all the bolts where tight, but I could not see the bolt area around the cam, is there a trick? I also ran it and watched the flex wheel spin at idle and it doesn't wobble, it seems to run true! I did notice that my manifold is cracked clear through at the cross over[/QUOTE]
That just might be the problem.
That just might be the problem.
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