1989 S-10 Blazer Vibration problem?

1989 CHEVROLET TRAILBLAZER

DTURNER14

MEMBER
2 POSTS

I own a 1989 S-10 Blazer 4x4 with about 180,000 miles and a 4.3L engine. When I drive down the road and reach about 40mph it starts to shave and when you speed up it starts making a roaring noise. if you slow down to about 10mph it goes away. was wondering if it could be the CV Axle? or would it be something else? Plus I already had the tires balanced.
Thanks for your help.

Mar 2, 2007 at 8:04 PM

SERVICE WRITER

✓ASE Certified Mechanic
9,123 POSTS

First I would get that ford motor out and put in the 4.3 motor.
:lol:

If it seems to feel as though it is coming from underneath you check the carrier bearing that the driveshaft goes into. Depending on the style I would also be suspicious of a joint that is loose.

There may be a bearing in one of the front wheels as another possiblity.

Mar 2, 2007 at 9:16 PM

DTURNER14

MEMBER
2 POSTS

Was told it was the rear differential. Changed out entire rear end with same problem. Also replaced the CV axle. It's vibrating from passenger side and sounds like if you were to stick a coke can in a bicycle tire (roaring noise).

Note: No carrier bearring

Mar 9, 2007 at 11:01 PM

SERVICE WRITER

✓ASE Certified Mechanic
9,123 POSTS

Is there any abnormal tire wear?
In particular a chopped wear.

Mar 10, 2007 at 6:03 AM

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