Question about 2003 Chevrolet Silverado 1500

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My emission light stays on in 03 chevy silverado. the selenoid was cleaned and put back in .it came back on after a few days.so he put another fuel cap on only lasted a few miles.

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  • hdgal3 May 09, 2009

    I guess the vent solenoid . I threw the codes away when i took it to the shop. I had auto zone check it out , anyway last night the emission light went out . I still have the same fuel cap he had me to try ,the light was out for a few miles then back on.,now out .I sure hope it is just the fuel cap. Thank you !

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What solenoid? Canister vent solenoid? What code number are you getting?

Posted on May 08, 2009

  • Clint Smock
    Clint Smock May 10, 2009

    Gm has issued a service bulletin on the canister vent solenoid. You need to buy a service kit from the dealer to keep the code from coming back. The kit is about 100 dollars.

  • Clint Smock
    Clint Smock May 10, 2009

    Gm has issued a service bulletin on the canister vent solenoid. You need to buy a service kit from the dealer to keep the code from coming back. The kit is about 100 dollars.

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Check the mass air flow sensor. my 03 had same problem replaced m.a.s. and fixed it. $90 part is what I paid.

Posted on May 12, 2009

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