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grinding sounds are never good.....

Old Mar 10, 2013 | 09:20 PM
  #1  
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From: upstate ny
Year: 95
Model: Cherokee
Engine: I6 4.0 HO
Default grinding sounds are never good.....

my 95 is making grinding noises. particularly accelerating from a stop and at low speeds. seems to go away when I get going at a consistent speed or when slowing down.
nothing seems different in park and neutral. drive and reverse make similar sounds. heavy vibration when stopped in drive or reverse...

Tranny problem I assume....tranny mount?

what am I looking for to spot a bad mount?

Tranny is my assumption but other suggestions are appreciated.....

Last edited by Xj423; Mar 11, 2013 at 10:09 AM.
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Old Mar 11, 2013 | 12:49 PM
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From: upstate ny
Year: 95
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*crickets chirp*
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Old Mar 11, 2013 | 01:02 PM
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Year: 2001
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Check out the tranny mount. If its not that then you may have a worse issue at hand
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Old Mar 11, 2013 | 02:51 PM
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From: upstate ny
Year: 95
Model: Cherokee
Engine: I6 4.0 HO
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Originally Posted by Xj423
my 95 is making grinding noises. particularly accelerating from a stop and at low speeds. seems to go away when I get going at a consistent speed or when slowing down.
nothing seems different in park and neutral. drive and reverse make similar sounds. heavy vibration when stopped in drive or reverse...

Tranny problem I assume....tranny mount?

what am I looking for to spot a bad mount?

Tranny is my assumption but other suggestions are appreciated.....
UPDATE

noticed clunking when accelerating from a stop until about 5 mph....
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Old Mar 11, 2013 | 03:05 PM
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Did you check your transmission fluid? It should be red and not brown or burnt smelling.
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Old Mar 11, 2013 | 03:08 PM
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From: upstate ny
Year: 95
Model: Cherokee
Engine: I6 4.0 HO
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yes it's more red than brown and doesn't smell burnt. transmission mount looks like it's slanted to one side....think I will take my bike over to advanced for a tranny mount
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Old Mar 11, 2013 | 03:48 PM
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From: Parham, ON
Year: 1999
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Engine: 4.0L OBD-II
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That clunk is a sign - sounds like you have a U-joint thats toast.
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Old Mar 11, 2013 | 05:05 PM
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Originally Posted by salad
That clunk is a sign - sounds like you have a U-joint thats toast.
Couldn't agree more. An easy check is to try and twist DS. If there's play, then the u joint is going.
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Old Mar 11, 2013 | 07:57 PM
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The problem could be a bad engine mount, U-joint, front driveshaft cardan joint, or a few other things. It's time for an undercarraige inspection, and if you don't know what you're looking for, take it to a professional for evaluation. This is not something that shadetree mechanics can diagnose over the internet.
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Old Mar 11, 2013 | 08:50 PM
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I call flex plate bolts
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Old Mar 12, 2013 | 11:31 AM
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From: upstate ny
Year: 95
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so changed the tranny mount.....still making noise. rough idle in drive and reverse is gone so it seemed to help but now the tranny is just making noise. in park i can climb under and hear it from up near the front somwhere cant quite tell where, somwhere near the front axle...
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Old Mar 12, 2013 | 11:50 AM
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Motor mounts?
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Old Mar 12, 2013 | 11:58 AM
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Originally Posted by Gee oh Dee
Motor mounts?
Mine was shot but didn't make that noise lol
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Old Mar 12, 2013 | 12:04 PM
  #14  
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From: upstate ny
Year: 95
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Engine: I6 4.0 HO
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whats the best way to check them....

maybe the clunk is u joint only one or two times coming out of a stop, they seem OK not good but not shot.....

but a bad u joint would not cause the tranny sound im hearing in park. doesnt sound like the flex plate, not a knocking sound. more like scraping metal sound....loose/shot bearing somewhere?
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Old Mar 12, 2013 | 12:15 PM
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Originally Posted by Cherokeekid4x4
Mine was shot but didn't make that noise lol
You've heard his noise? Lol


Mine let the motor move enough to make a grinding noise.

If its doing it at idle its not a ujoint...

Exhaust making contact with something?
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