Silverado Check Engine Light

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Silverado Check Engine Light

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Chevrolet >> Chevy Trucks, Vans & SUV's >> Silverado >> Silverado Check Engine Light

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Silverado Check Engine Light - 9/18/2006 9:45:00 PM

billti

Posts: 1
Joined: 9/18/2006
Status: offline

The Check Engine Light (CEL) on my 2004 Silverado keeps coming on about every 6 months. The code (P0442 I think) is for a small gas tank evaporation leak or a gas cap not sealing. I am careful to tighten the gas cap after filling up. The truck is still under warranty, and the dealer "fixes" it every time, but it is inconvenient and I am concerned about the cost of repair when the warranty runs out. The dealer has replaced the gas cap at least twice. Is anyone else having this problem with the Silverado? Any suggestions? And will the vehicle pass the safety inspection with the CEL on?

Post #: 1

RE: Silverado Check Engine Light - 9/18/2006 10:38:17 PM

matador

Posts: 106
Joined: 7/5/2006
Status: offline

not me

_____________________________

Matador

2006 Chevy Silverado Z71 5.3 4x4

(in reply to billti)

Post #: 2

RE: Silverado Check Engine Light - 9/19/2006 11:15:14 AM

uncle bill

Posts: 289
Joined: 8/25/2006
Status: offline

The gas tank is vented through the cap and through a seperate vent tube ( I think ). If the vent tube becomes clogged or dislodged, it may set the code. Make sure the new cap isn't faulty.

(in reply to matador)

Post #: 3