Why does my chevy trailblazer make a rattle noise from underneath

Asked by Jes Mar 13, 2020 at 11:02 AM about the 2002 Chevrolet Trailblazer

Question type: Maintenance & Repair

My Chevy trailblazer makes a rattle noise from the
rear end of the vehicle it... its getting louder what
could this be... I know it the rear end cause if I hit a
bump it always does it and it's coming from there...
but it also does it randomly just while drivin

4 Answers


check the exhaust hangers.shock mounts....


Sounds can radiate from different areas, what I thought was in the rear, was actually up front. More than likely this is a typical sound coming from your swaybar end links. You have 2 up front, and 2 in the rear., front ones normally go out first. Grab a hold of it and try shaking them, should be tight. When replacing them, get ones that are greasable. OEM didn't have that option. Try rocking the truck back and forth to try and replicate the sound.

I wish I could upload a video of the sound it does. .pretty sure it is the heating shield


My 2020 blazer rattles too. When driver side window open and doing like 30 or 40 a min or two later back hatch rattles. Seems like design floor very annoying and can be loud. Basically cant drive my brand new car with window open unless I want loud rattle . Very disappointed in chevy!

1 people found this helpful.

Your Answer:


Looking for a Used Trailblazer in your area?

CarGurus has 340 nationwide Trailblazer listings starting at $6,995.

Postal Code:

Chevrolet Trailblazer Experts

  • #1
  • #2
    G A Arne
  • #3
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Chevrolet Blazer
471 listings starting at $29,981
Used Chevrolet Tahoe
4 Great Deals out of 514 listings starting at $2,950
Used Jeep Grand Cherokee
57 Great Deals out of 3,653 listings starting at $1,995
Used Chevrolet Silverado 1500
89 Great Deals out of 6,588 listings starting at $4,995
Used Ford Explorer
27 Great Deals out of 1,701 listings starting at $3,900
Used GMC Envoy
19 listings starting at $3,600
Used Dodge Durango
47 Great Deals out of 1,183 listings starting at $6,495
Used Chevrolet Camaro
21 Great Deals out of 579 listings starting at $10,995
Used Toyota RAV4
87 Great Deals out of 4,325 listings starting at $2,990
Used Ford Escape
149 Great Deals out of 5,506 listings starting at $1,000

Used Cars for Sale

2021 Chevrolet Trailblazer For Sale
317 listings starting at $24,888
2009 Chevrolet Trailblazer For Sale
4 listings starting at $6,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.