Can any one help with this ?

Asked by GuruGXYHK Aug 19, 2020 at 04:23 PM about the 2004 Chevrolet Silverado 1500 Z71 4WD

Question type: Maintenance & Repair

Tighten oem gas cap. Light went off . 2weeks later
same thing. This is the second one since I bought  
truck new. Ran very rough.  Had it checked  said
miss fire and oxygen sensor. Tighten cap in
parking lot ran perfect. HELP.
.

2 Answers
620

exCompaqr answered 3 years ago

I had a similar experience. It turned out to be the gas tank vent valve which is usually mounted on the frame below the gas cap. It goes through a cycle every time you start the truck checking for a gas cap vent leak. If it malfunctions you'll get a check engine light and an error message from the OBDII port. I changed mine and the problem has never re- occurred. It is cheap too! I've heard that it gets degraded by people who fill their gas tanks beyond the first "click" of "full" at the gas station.

1 people found this helpful.
Best Answer Mark helpful

Your Answer:

Related Questions

  • Can any one help with this ? 2 Answers

    Tighten oem gas cap. Light went off . 2weeks later same thing. This is the second one since I bought truck new. Ran very rough. Had it checked said miss fire and oxygen sensor. Tighten cap in p...

    2004 Chevrolet Silverado 1500 Z71 4WD

    -

    Maintenance & Repair

  • Any help on how to fix this please? 1 Answer

    I was going 90 when the stabilitrac service light came in and out of no where I lost power for a quick second and then truck kept running normal any idea what needs to be done?

    2014 Chevrolet Silverado 1500 LT Z71 4WD

    -

    Maintenance & Repair

  • Can any one help me with the below problem 3 Answers

    My Optra refuses to start despite changing a new battery. There is HOLD sign, and a ENGINE sign lights - for what reason I dont know. Any advice ?

    Chevrolet Optra

    -

    Maintenance & Repair

  • 2005 chef 1500 overhead lamp fuse keeps blowing with I put truck in rev, any ideas help 1 Answer

    overhead lamp goes out when truck is put in rev, rev bulbs have been replaced with new ones, Help

    2005 Chevrolet Silverado 1500 LS Crew Cab RWD

    -

    Maintenance & Repair

  • What is this panel called and where can I find one? 9 Answers

    I have a Chevy Silverado 1500 LD double cab and there is suppose to be a panel on my drivers side under the dash where the gas and brakes are thy cover up all of the wires, my gps etc.. can anyone ...

    2019 Chevrolet Silverado 1500 LD LT Double Cab RWD

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet Silverado 1500 Questions

CarGurus Experts

  • #1
    Rowefast
    Reputation
    10,410
  • #2
    John Carson
    Reputation
    9,580
  • #3
    Andrew Olsen
    Reputation
    9,470
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
136 Great Deals out of 7,790 listings starting at $4,944
Used Ford F-150
296 Great Deals out of 13,732 listings starting at $3,888
Used Chevrolet Silverado 2500HD
24 Great Deals out of 1,551 listings starting at $5,990
Used Toyota Tundra
25 Great Deals out of 926 listings starting at $10,698
Used Dodge RAM 1500
3 Great Deals out of 86 listings starting at $3,990
Used Toyota Tacoma
43 Great Deals out of 820 listings starting at $2,030
Used Chevrolet Tahoe
14 Great Deals out of 786 listings starting at $7,499
Used Chevrolet Colorado
33 Great Deals out of 1,144 listings starting at $4,951
Used GMC Sierra 2500HD
27 Great Deals out of 2,073 listings starting at $7,997
Used Ford F-250 Super Duty
21 Great Deals out of 763 listings starting at $3,990
Used Ford Mustang
41 Great Deals out of 1,627 listings starting at $7,999

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.