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

152,225

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
    Bob Beaman
    Reputation
    30
  • #1
    curt2500
    Reputation
    30
  • #1
    cjsras
    Reputation
    30
View All

Related Models For Sale

Used Chevrolet Silverado 2500HD
11 Great Deals out of 1,650 listings starting at $5,950
Used GMC Sierra 2500HD
11 Great Deals out of 1,726 listings starting at $3,900
Used Chevrolet Silverado 1500
65 Great Deals out of 10,463 listings starting at $4,750
Used Chevrolet Silverado 3500HD
6 Great Deals out of 849 listings starting at $9,995
Used Ford F-250 Super Duty
12 Great Deals out of 808 listings starting at $5,995
Used Dodge Ram 2500
3 Great Deals out of 85 listings starting at $5,900
Used GMC Sierra 1500
54 Great Deals out of 9,542 listings starting at $4,595
Used Ram 2500
21 Great Deals out of 1,706 listings starting at $15,991
Used Chevrolet Silverado 3500
5 listings starting at $10,995
Used Chevrolet Silverado Classic 3500
1 listings starting at $15,870
Used Ford F-350 Super Duty
15 Great Deals out of 1,169 listings starting at $5,900
Used Chevrolet Silverado 1500HD
2 listings starting at $9,850
Used Ford F-150
133 Great Deals out of 10,321 listings starting at $2,000
Used GMC Sierra 3500HD
5 Great Deals out of 1,002 listings starting at $1,995

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.