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

140

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

14 people found this helpful.
8,465

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 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 people found this helpful.
50

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

5 people found this helpful.
110

where i can buy rear differential for my pontiac aztek 2004

11 people found this helpful.

Your Answer:

Aztek

Looking for a Used Aztek in your area?

CarGurus has 79 nationwide Aztek listings and the tools to find you a great deal.

ZIP:

Pontiac Aztek Experts

  • #1
    Tom Demyan
    Reputation
    350
  • #2
    ejhern
    Reputation
    250
  • #3
    Thomas Killen
    Reputation
    210
View All

Related Models For Sale

Used Buick Rendezvous
12 Great Deals out of 668 listings starting at $1,000
Used Jeep Grand Cherokee
1,103 Great Deals out of 77,988 listings starting at $900
Used Pontiac Vibe
19 Great Deals out of 765 listings starting at $1,688
Used Ford Mustang
297 Great Deals out of 39,759 listings starting at $1,312
Used Dodge Charger
331 Great Deals out of 32,069 listings starting at $1,500
Used Pontiac Grand Prix
15 Great Deals out of 1,695 listings starting at $1,500
Used Pontiac Firebird
6 Great Deals out of 685 listings starting at $3,995
Used Honda Civic
491 Great Deals out of 44,267 listings starting at $1,150
Used Toyota 4Runner
218 Great Deals out of 33,344 listings starting at $1,995
Used Toyota Camry
859 Great Deals out of 70,688 listings starting at $1,000
Used Honda CR-V
702 Great Deals out of 75,749 listings starting at $100
Used Jeep Wrangler
212 Great Deals out of 15,006 listings starting at $2,500
Used Chevrolet Equinox
1,215 Great Deals out of 87,010 listings starting at $2,295
Used Ford Escape
1,193 Great Deals out of 111,597 listings starting at $1,995
Used Toyota Tacoma
429 Great Deals out of 49,110 listings starting at $2,400

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.