Check engine light flash

Asked by Nov 10, 2017 at 06:27 PM about the Chevrolet Silverado Classic 2500HD

Question type: Maintenance & Repair

On my 2004 Chevy 2500 HD the check
engine light is on and as I get on the gas a
little bit the check engine light flashes it is
on all the time and there is a rattle noise
coming from the exhaust

1 Answer

104,235

Best to find out what the computer has stored for codes and go from there, the rattle could be anything, O2 sensor came apart, catalyst's internals disintegrating, or it could be just a loose mount.

Your Answer

Chevrolet Silverado Classic 2500HD Experts

  • #1
    curt2500
    Reputation
    30
  • #2
    Bob Beaman
    Reputation
    20
  • #3
    tennisshoes
    Reputation
    10
View All

Related Models For Sale

Used Chevrolet Silverado 2500HD
11 Great Deals out of 1,149 listings starting at $4,995
Used Ford F-250 Super Duty
29 Great Deals out of 793 listings starting at $2,475
Used GMC Sierra 2500HD Classic
5 listings starting at $23,995
Used GMC Sierra 2500HD
21 Great Deals out of 1,217 listings starting at $3,995
Used Chevrolet Silverado 1500
173 Great Deals out of 9,719 listings starting at $1,995
Used Dodge Ram 2500
5 Great Deals out of 90 listings starting at $1,995
Used Ram 2500
17 Great Deals out of 1,476 listings starting at $10,995
Used Ford F-350 Super Duty
32 Great Deals out of 1,087 listings starting at $6,995
Used GMC Sierra 1500
239 Great Deals out of 9,964 listings starting at $399
Used Dodge Ram 3500
5 Great Deals out of 74 listings starting at $8,800
Used Ford F-150
594 Great Deals out of 10,717 listings starting at $3,300
Used Ram 3500
12 Great Deals out of 1,331 listings starting at $28,940
Used Chevrolet Silverado 3500HD
8 Great Deals out of 636 listings starting at $13,940
Used Toyota Tacoma
34 Great Deals out of 1,018 listings starting at $7,950

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.