Question about 2000 Chevrolet Blazer

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Fuel smell from under hood when running and after being shut off

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  • bettamsw Feb 03, 2009

    Didn't really help. still don't know where the fuel smell is coming from. I would fix myself, but not sure what needs changed



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Do not use car ,get garage to tow it in,fuel lines perished and need changing.This is a very dangerous thing do not drive the car

Posted on Jan 31, 2009


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Looking for fuel system diagram

Chances are its what is called the fuel pressure regulator is the problem.
These other systems have vents and valves and are disgined them selves .
The pressure regulator deals with the fuel injecters mainly back pressure feed back to the tank .
The vehicle will run OK but when you shut it off you smell gas vapor it has to get out .

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engine hard to start smelling fuel first look under hood for signs leaking fuel lines if you raise hood get strong gas smell look for wet fuel leaks on top engine where fuel lines located.if see no leaks could have leak at fuel rails to fuel injectors.if see no leaks look under vechicle around fuel tank area look for fuel dripping.

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1 Answer

Smell gas when driving. when I put it in garage after driving the smell stays for awhile. No leaks on floor of garage.

your car may not be burning off all the fuel or you are leaking. just because you dont see it on the floor doesnt mean that your not leaking. because its hot under there your evaporating faster than you drip. check your lines starting at tank. check under hood where it connects to injection system.
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My 1993 chevy luminagets lousy gas mileage,when it runs you smell

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What will cause a strong gas smell after turning off engine

Check the fuel cap gasket to be sure it is not torn or worn. After that check the vent hoses that run from the fuel tank to the charcole canister located somonwhere under the hood. Is the smell stronger under the hood or toward the rear of the car? If you cannot find the problem, a fuel leak is dangerous and should be attended to ASAp by somone that has the experience to repair the problem
Good Luck

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