Rear end differential

Asked by Jun 22, 2010 at 09:37 AM about the Pontiac Aztek

Question type: Maintenance & Repair

My Aztek just reached 92,000 miles and has developed a howling/grinding noise coming from the back.  Back brakes were replaces, as was a rear wheel bearing, but the grinding noise continues. Appears to be coming from the rear differential.  Is this a common problem?  Anyone know if bearings are available or if I have to replace the entire differential unit?

5 Answers

120

I have the same problem with ours. Did you get your problem corrected? If so, what did you have done?

12 of 12 people found this helpful.
7,275

i had a howl in my gto and it turned out to be a rear wheel bearing. is it a constant howling or does it get louder when turning one direction and softer when turning the other? have you been keeping up on the maintenance for the rear end fluid? sometimes changing the fluid will help a lot with differential noise.

4 of 4 people found this helpful.
80

I had the same problem. It was spindle/Knuckle bushing in the rear. Here in Milwaukee the part cost $385.00 each, I went online to Auto Parts Direct and got then for $44.00 each. It solve the problems. I had first had both real bearing replace and it did not solve the problem but the spindle/ Knuckle corrected the problem

7 of 7 people found this helpful.
50

I had the fluid changed and it helped mine no sound after.

5 of 5 people found this helpful.
100

where i can buy rear differential for my pontiac aztek 2004

10 of 10 people found this helpful.

Your Answer

Add photo

Related Questions

Aztek

Looking for a Used Aztek in your area?

CarGurus has 131 nationwide Aztek listings starting at $2,495.

ZIP:

Search Pontiac Aztek Questions

Pontiac Aztek Experts

#1 Tom Demyan
Tom Demyan
Reputation 280
#2 ejhern
ejhern
Reputation 190
#3 COMETGUY61
COMETGUY61
Reputation 140
View All

Related Models For Sale

Used Pontiac Torrent
26 Great Deals out of 767 listings starting at $2,000
Used Pontiac G6
83 Great Deals out of 4,115 listings starting at $699
Used Pontiac Vibe
26 Great Deals out of 1,024 listings starting at $1,900
Used Pontiac Grand Prix
30 Great Deals out of 2,871 listings starting at $900
Used Pontiac Bonneville
3 Great Deals out of 533 listings starting at $1,799
Used Buick Rendezvous
19 Great Deals out of 1,077 listings starting at $1,495
Used Pontiac GTO
5 Great Deals out of 452 listings starting at $6,000
Used Pontiac Firebird
12 Great Deals out of 724 listings starting at $3,990
Used Pontiac G5
14 Great Deals out of 493 listings starting at $1,595
Used Pontiac G8
24 Great Deals out of 370 listings starting at $6,500
Used Ford F-150
2,191 Great Deals out of 206,316 listings starting at $1,499
Used Pontiac Solstice
14 Great Deals out of 416 listings starting at $4,100
Used Honda CR-V
896 Great Deals out of 61,171 listings starting at $988
Used Chevrolet Equinox
1,106 Great Deals out of 71,554 listings starting at $1,800
Used Pontiac Sunfire
310 listings starting at $3,975

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.