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Old 12-31-2010, 11:03 AM
Texas001 Texas001 is offline
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Join Date: Aug 2010
Posts: 49
Default Re: Check Fuel Cap/Check Engine Light

Quote:
Originally Posted by kevinb View Post
1998 ranger xl gas cap makes a farting sound,any ideas

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it's a 3.0

Farting sound?? I guess it has gas.

Gas tank is building pressure and it is being released around the rubber washer on the cap. I think that the canister has a relief valve (solenoid controlled I believe) and should relieve the pressure but this valve may be stuck or clogged with dirt as the canister is up under the bed. Better check this out as I am not speaking from experience or detailed knowledge, just common thinking. I have read that many cars and trucks have a similar condition where the gas cap makes noises. Search "gas cap making noises" and see what I mean by many cars and trucks.

I don't think it is a serious problem unless the relief valve is kapoot.

Last edited by Texas001; 12-31-2010 at 12:51 PM.
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