93 alltrac thumping sound

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93 alltrac thumping sound

Postby jlspec » Thu Jul 14, 2016 5:28 am

Just got a 93 with a thumping sound when shifting gears. Sounds like it's coming from underneath or the rear of the car. Any thoughts on what it can be? The car is in the shop getting basic repairs done so I am unable to test it at the moment but to give the shop an idea of what they might want to look into. If I remember correctly, awhile ago I read about a mount that goes bad and users just reseal it to make it a solid mount which resolves this issue. I believe it was the drive shaft mount.
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Re: 93 alltrac thumping sound

Postby yyonline » Thu Jul 14, 2016 5:39 am

Rear diff mounts (all 3 of them), driveshaft carrier bearing mounts, and engine mounts are all common failures with higher mileage.
1992 Toyota Celica all-trac (the dream car)
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Re: 93 alltrac thumping sound

Postby ___Scott___ » Thu Jul 14, 2016 12:56 pm

This is one option:
http://www.planetcampbell.us/DiffMountR ... Repair.htm

Someone used a polyurethane caulk with good results, but I don't remember who. Some searching should turn it up.
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Re: 93 alltrac thumping sound

Postby mx6er2587 » Thu Jul 14, 2016 4:43 pm

sounds like the classic alltrac death thump. One minute they're thumping down the road the next they explode it thousands of pieces. Should probably let me take that death trap off your hands for you. :P

CV joints, rear diff mount, or north-south engine mounts are the most common causes of a noise like that.
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Re: 93 alltrac thumping sound

Postby lumbercis » Thu Jul 14, 2016 10:14 pm

I'd say check the rear diff mount first. If that's not it start with the other suggestions mentioned above.
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Re: 93 alltrac thumping sound

Postby jlspec » Tue Jul 26, 2016 4:43 am

Ok, got word back from the shop. They were said the mount wasn't the issue as it still looked good, is there anything else that it can be?
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Re: 93 alltrac thumping sound

Postby FC Zach » Tue Jul 26, 2016 6:04 am

yyonline wrote:Rear diff mounts (all 3 of them), driveshaft carrier bearing mounts, and engine mounts are all common failures with higher mileage.


Plus 1 for checking this.
1992 Toyota Celica AllTrac
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