check gas cap
Heel & Toe
Joined: Feb 2000
Posts: 19
Likes: 1
From: Severn MD
I got this message a couple months ago and discovered the gas cap wasn't twisting on fully, as the teeth in the cap were wearing away. I got a new gas cap from my local Chevy parts department. After using the new cap, it was obvious to me the old cap was done.
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From: Boca Raton FL
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Heel & Toe
Joined: Jan 2008
Posts: 24
Likes: 0
From: Sonoma Calif.
Bill,
After installing a new cap, I weighted over night, started the car and am still getting the message. I forgot to mention that I got some gas at a independent station, close to the Mexican border before the check gas cap message originally appeared. Normally I use Chevron, but this was a panic buy, as I was on empty. Could bad gas cause the problem?
After installing a new cap, I weighted over night, started the car and am still getting the message. I forgot to mention that I got some gas at a independent station, close to the Mexican border before the check gas cap message originally appeared. Normally I use Chevron, but this was a panic buy, as I was on empty. Could bad gas cause the problem?
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Pro
Joined: Mar 2008
Posts: 633
Likes: 13
From: Hurley New York
If I'm not mistaken its the loss of vacuum in the emissions system that triggers this code and not the actual cap itself other than its a bad sealing cap. or a leak in a hose that leads from gas tank to intake manifold will cause it also.
Had a check cap light in my Pick Up truck but I found the fault in a cracked hose behind the drivers front headlight area.
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Had a check cap light in my Pick Up truck but I found the fault in a cracked hose behind the drivers front headlight area.
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Pro
Joined: Mar 2008
Posts: 633
Likes: 13
From: Hurley New York
Bill,
After installing a new cap, I weighted over night, started the car and am still getting the message. I forgot to mention that I got some gas at a independent station, close to the Mexican border before the check gas cap message originally appeared. Normally I use Chevron, but this was a panic buy, as I was on empty. Could bad gas cause the problem?
After installing a new cap, I weighted over night, started the car and am still getting the message. I forgot to mention that I got some gas at a independent station, close to the Mexican border before the check gas cap message originally appeared. Normally I use Chevron, but this was a panic buy, as I was on empty. Could bad gas cause the problem?
