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Extreme pressure released when removing gas cap. 2002 suburban 5.3L

CHECK ENGINE LIGHT ON- PRESSURE RELEASE FROM GAS TANK.

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Replace gas cap. It may be defective

Posted on Oct 31, 2013

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PDoes the gas cap on a Poulan 25 CVA countervibe keep the engine from cranking


if the cap is a vented cap then yes it can. to check this start machine and when it starts to fail release the pressure by loosening your fuel cap. if this helps it run better then replace cap. if this doesn't help then check if you have a tank vent that is plugged. a tank vent usually looks like a button with five or six holes in the top and it will be on the fuel tank

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You have a check light on & pressure when you
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Pretty simple I would say !!

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Perhaps the carbon filter solenoid is stuck closed and pressure is building in the tank. The fizzing could be vapor leaking around the gas cap. If there is no error code for the carbon canister, try and buy a new gas cap. A bad gas cap will throw error codes.

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Check engine light on 2001 chrysler 300m. The code says it has to do with either my gas cap not being tight or some sort of fuel fumes. I'm sorry I don't know the codes.


Make sure that the gas cap is the correct one. If the gas cap was replaced with a different style or a locking cap this will set off the check engine light. It can tell there is a problem because it measures the built-up pressure in the gas tank. So the pressure is not building in the tank due to a loose or incorrect fitting gas cap or a loose,cracked fuel line, or bad check valve in the charcoal canister for the fuel tank vapor release line.

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wat kinda bike u got. if a dirtbike, u need to check and clean the inside of that hose that comes out the top of a gas cap, thats the only place were air can get it in to let the pressure out and regulate the gas going in. if its a street bike ask sumone else i dont **** with that ****

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Locating the fuel filter


You didn't state the year or engine size,,,, On the firewall,( passenger side, back of engine compartment, it's round) on fuel injected models, relieve pressure of fuel line before beginning- gas cap off,also must release pressure on fuel injected models- some have pressure release on top of filter, others on fuel rail,this will be a bolt on top of a bolt. Hold the bottom bolt (w/ open end wrench, loosen top bolt w/ 6mm wrench. Cover with rag, so you don't have gas shooting up in your face. Carb models: have 2 filters, one inline in engine compartment, 2nd under car attached to fuel tank. Open gas cap to relieve pressure before starting removal on carb models. countrycurt0

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