LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

HELP! I still smell gas inside car!!!

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Old Feb 5, 2003 | 12:34 PM
  #16  
shoebox's Avatar
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From: Little Rock, AR
Originally posted by 97firechicken
If they where bad would that create the smell?
Not unless there is fuel leaking and I doubt there is. The pressure is high there and you would know if you had a leak.

Did you read the post of the guy that said to check the fuel pressure regulator vacuum line? He went on to say that if fuel was getting into the vacuum line, the smell could be drawn into the passenger compartment through the HVAC control lines. Of course if there was fuel in that vacuum line, that would mean that your regulator was bad and needed to be replaced.
Old Feb 5, 2003 | 04:53 PM
  #17  
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From: Dallas, TX, USA
No i didnt read that, where is the fuel pressure regulator vacuum line? And Im sorry i having a dumb moment, HVAC always high voltage AC, what does that mean, and i take it the control lines are on the passenger side?
Old Feb 7, 2003 | 12:33 PM
  #18  
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From: Scottsdale, AZ
Originally posted by 97firechicken
Where is that tub at exactly? and do i have to drop the tank to get to it?
No, you don't have to drop the tank. It is on the driver side, if you stand under the tank, with the car in the air you can see it. It is a white, plastic thing with a hose that runs back up to the top of the tank.
Old Feb 7, 2003 | 01:13 PM
  #19  
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From: Lawson, Missouri
Smile

I don't know if it has aready been posted,(don't have time read all of the posts) but did you check your fuel pressure regulator?

Last edited by oldBones; Feb 7, 2003 at 02:34 PM.
Old Feb 7, 2003 | 02:46 PM
  #20  
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From: Little Rock, AR
Originally posted by 97firechicken
No i didnt read that, where is the fuel pressure regulator vacuum line? And Im sorry i having a dumb moment, HVAC always high voltage AC, what does that mean, and i take it the control lines are on the passenger side?
Fuel pressure regulator. You can see the vacuum line that is plugged into it. Pull that off and smell/look for gas in it.

HVAC=heating, ventilation, air conditioning

The controls in the car that move the doors inside the ducting are operated by vacuum routed through this valve. That is why you hear a "hissssssssss" when you change the mode selector on the dash to a different position.
I am not sure what the other guy said about drawing fumes in the car is totally plausible. It might be if it was leaking enough, but it cannot hurt to check
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