check engine light is on

Asked by Oct 26, 2008 at 03:02 PM about the 2004 Chevrolet TrailBlazer LS

Question type: General

i had filled my tank with fuel then after driving fo a while my check engine light came on. I took the car to where i had bought it and told me the light came on because i did not tighten the gas cap enought.  Does this make any sence

7 Answers

8,525

Yes, if you cap is not tight it will through a code. retighten the cap and the light should go off if not, get the code read (not erased) and go back to them with it.

25

It will set a code for the evap system. Just leave it alnoe, it will automatically turned off and ereased.

1 of 1 people found this helpful.
165

Your gas cap probably says "Tighten past 3 clicks." This is exactly why.

3 of 3 people found this helpful.
10,475

Yep, it triggers an evap leak code!!!

2 of 2 people found this helpful.
80

i'am getting a P0496 code on my 2004 trailbalzer , is this the purge valve, and is located under the engine cover ? Thanks.

8 of 8 people found this helpful.
10

I have the same reason / the check engine light and turn off in 3 days ... it is repeated every 2 weeks light and turn off again I don't know the exactly reason ?

1 of 1 people found this helpful.

Finally my engine light off on my 07 trailblazer 4.2 after buying 3 purge valves and 2 gas caps from autozone that was the problem buying parts from them one gas cap from NAPA and a purge valve did the trick thanks NAPA

Your Answer

TrailBlazer

Looking for a Used TrailBlazer in your area?

CarGurus has 4,567 nationwide TrailBlazer listings starting at $1,475.

ZIP:

Chevrolet TrailBlazer Experts

  • #1
    bigdogracer
    Reputation
    900
  • #2
    Tom Demyan
    Reputation
    880
  • #3
    tennisshoes
    Reputation
    680
View All

Related Models For Sale

Used Chevrolet Tahoe
664 Great Deals out of 39,394 listings starting at $1,000
Used Jeep Grand Cherokee
900 Great Deals out of 70,395 listings starting at $1,045
Used GMC Envoy
53 Great Deals out of 2,114 listings starting at $1,500
Used Chevrolet Silverado 1500
2,143 Great Deals out of 167,073 listings starting at $1,498
Used Chevrolet TrailBlazer EXT
12 Great Deals out of 1,023 listings starting at $1,995
Used Ford Explorer
833 Great Deals out of 63,128 listings starting at $1,000
Used Chevrolet Impala
518 Great Deals out of 33,770 listings starting at $950
Used Dodge Durango
308 Great Deals out of 21,312 listings starting at $2,195
Used Chevrolet Blazer
1,055 listings starting at $950
Used Chevrolet Equinox
1,011 Great Deals out of 69,931 listings starting at $2,200
Used Ford F-150
2,317 Great Deals out of 182,094 listings starting at $1,000

Used Cars For Sale

2007 Chevrolet TrailBlazer LS For Sale
6 Great Deals out of 104 listings starting at $2,995

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.