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Re: Check Engine Light gas cap!
On 18 Jan 2006 05:46:05 -0800, [email]cliffmant@yahoo.com[/email] wrote:
[color=blue]
>Tundra 03
>My engine light went on yesterday. I changed my gas cap to a locking
>cap the week before.
>Went to Autozone they checked the sytem out for free. It was the
>locking gas cap that caused the problem. They reset the sytem for me.
>Check engine light out.
>Thanks to this group for the heads up and Autozone.[/color]
They gave you the wrong locking cap. There is a calibrated relief
valve in newer caps meant for emissions controlled cars, and a simple
vent breather hole in the caps for older cars.
On emissions cars the relief valve in the cap has to hold up to a
certain pressure and/or a certain vacuum in the fuel tank before it
vents either way, because the emissions system wants to keep the tank
at a slight vacuum when running - if there's a leak that keeps the
vacuum from developing, it trips the 'Check Engine' Light.
--<< Bruce >>--
--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
Spamtrapped address: Remove the python and the invalid, and use a net.
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