Question about 1999 Buick Century

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I smell gas when i turn the ac

There is a vacuum leak in my car I smell gas when I turn on my ac really really bad

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Check for a faulty fuel pressure regulator

Posted on Mar 30, 2014

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Posted on Jan 02, 2017

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Smelling gas when i turn on ac unit in 2002 mazda tribute


Things to check for:
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  2. fuel tank leak
  3. a leak in the fuel line / rail
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I got a 2000 Buick regal gs what would cause me to get really bad gad mileage and you can smell gas in the car


First and most important, check the fuel rail,injectors and fuel lines to the engine and make sure you have no leaks. If you can't see the injectors on the back side, get a mirror and good light. This needs checked. Next check the fuel pressure regulator. pull the vacuum hose off of it and smell for gas in/at the hose. If you smell gas, replace the regulator. Next check all the vacuum lines broken ones cause a lean mixture and the computer will throw more gas to the engine. You must have the check engine light on, Check for codes. If it isn't check for codes anyway.

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My oil smells like gas and i can literally watch gas gauge fall


Stop using it now

If you allow much fuel at all into the oil you
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Could be a leaking injector or something more
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Gasoline Smell as soon as car is turned off. No Air Conditioner.


not much to go off here, but i would think if you are always smelling the gas after you shut it off and it is not someone around you, then yes, you have a leak. This leak could be the gas cap even. Sometimes o-rings on the fuel rail can go bad causing it to drain off the excess gas when shut off. but you would notice really bad gas milage. I hope this helps as your description was pretty vague.

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if no leaks in lines, a bad or leaking fuel regulator can cause hard starting, poor fuel economy, stalling, check engine light, gas smell from under hood.

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Have you tried changing both of the fuel filters? If they are clogged your power will go down and your gas mileage will go down. I'm not sure about the smell of gas, but new fuel filters really helped mine.

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Gas smell in exhaust


you have either a blown head gasket or cracked head. The white smoke is coolant passing through the engine and exhaust. The gas smell is from compression leaking past the gasket or head, pushing fuel vapor into the air.

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Petrol smell inside of car. This started just resently, its really bad, but not all the time. The car is old but fine, and goes wonderfully well really, but the smell is very worrying. What can it be and...


Gas or anitfreeze are both petrolium based prducts. Check for leaks on both. Antifreeze has a sweet smell and is either green or orange if using Dex Cool (look in resivoir to confirm color or if its low) to diffrentiate the 2.

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Fixed ac problem now smell gas inside vehicle


burnt or unburnt gas? if burnt gas smell look for bad manifold or manifold to pipe (donut) gasket.
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Remove the vacuum hose from the fuel pressure regulator have some one turn the key on but dont start the car if gas leaks out the regulator is bad.

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