Noise coming from under my 2004 Chevy trailblazer

Asked by May 09, 2017 at 01:54 PM about the 2004 Chevrolet TrailBlazer EXT LT SUV

Question type: Maintenance & Repair

Hi I have a 2004 Chevy trail blazer
underneath you can hear like a
raddleing noise and now if I start my
truck u can hear like a knock like
something is lifting up and dropping
and it will stop after that one knock
please help it's driving me crazy

1 Answer

4,945

It could be a number of things however my first thought would be the exhaust system. They tend to rattle after years of use, and sometimes the connections do corrode and loosen. The reason it may stop after sometime is because the exhaust system gets very hot and the metal expands, stopping the rattling. To be sure, I would run it by Midas or some other reputable shop and just ask them to take a look. Usually there is no charge. Best of luck!

1 of 1 people found this helpful.

Your Answer

Chevrolet TrailBlazer EXT Experts

  • #1
    jimjimjim
    Reputation
    440
  • #2
    John Carson
    Reputation
    120
  • #3
    chevyp2p
    Reputation
    100
View All

Related Models For Sale

Used Chevrolet TrailBlazer
5 Great Deals out of 49 listings starting at $700
Used Chevrolet Tahoe
6 Great Deals out of 632 listings starting at $6,871
Used GMC Envoy XL
11 listings starting at $2,950
Used Ford Explorer
46 Great Deals out of 1,364 listings starting at $3,900
Used Chevrolet Equinox
104 Great Deals out of 4,723 listings starting at $138
Used Jeep Grand Cherokee
108 Great Deals out of 2,738 listings starting at $1,871
Used Chevrolet Silverado 1500
161 Great Deals out of 10,662 listings starting at $100
Used GMC Yukon
10 Great Deals out of 859 listings starting at $5,950
Used Chevrolet Suburban
386 listings starting at $1,995
Used GMC Envoy
3 Great Deals out of 37 listings starting at $2,995
Used Chevrolet Blazer
14 listings starting at $1,750
Used Dodge Durango
62 Great Deals out of 1,013 listings starting at $2,998
Used Chevrolet Impala
61 Great Deals out of 938 listings starting at $1,900

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.