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2000 Ford Mustang gas odor from rear of car

Tiny
GARYGRONDAHL
  • MEMBER
  • 2000 FORD MUSTANG
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 72,000 MILES
While the car is running and for about 20 minutes after it's been turned off I smell strong gas fumes from the rear of the car. No visible leaks. Any guesses?
Tuesday, September 1st, 2009 AT 6:03 PM

8 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok if it isn't the gas cap then I would check the EVAP Canister vent soenoid. It is at the left (drivers) side rear just behind the tire near the fuel tank. Let me know what you find.
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Wednesday, September 2nd, 2009 AT 10:10 AM
Tiny
GARYGRONDAHL
  • MEMBER
  • 3 POSTS
Racefan thanks for the quick response. It's not the gas cap or EVAP solenoid on drivers side. It appears to be a very small leak on the passengers side that is pooling on the upper lip of the gas tank. I can't tell if it is from a hose. Any other ideas or should I take it to a shop?
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Thursday, September 3rd, 2009 AT 9:36 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
OK so is you fill neck on the passanger side like my 98 is? If so then check the fill hose for cracks and loose clamps also check the vent hose next to the fill hose. As far as taking it in depends on you mechanical skills or how comfortable you feel doing the work yourself. If this is all ok then I would recommend dropping the tank to make sure there is no hole on top or that the sending unit isn't leaking and so on. Let me know what you find.
So on an off note any performance mods?
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Friday, September 4th, 2009 AT 10:02 AM
Tiny
GARYGRONDAHL
  • MEMBER
  • 3 POSTS
Thanks for the info. As for as mods go, I put on a K&N CAI, dual exhaust w/ flowmasters, lowered suspension with 18-9" wheels on front and 18-10" on back with 285/35 on back and 245/40 on front. I also have a diablo predator high performance tune on it. It probably puts out as much HP as a stock GT but with the gas mileage of a V6.
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Friday, September 4th, 2009 AT 5:27 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Thats cool. I did the BBK cai with there throttle body as well as the flowmaster kit and not I am looking in the pro charger with 11 psi. I like having the mileage of the V6 too. Let me know what you find with the gas smell.
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Saturday, September 5th, 2009 AT 8:31 AM
Tiny
JERSEYROADS
  • MEMBER
  • 5 POSTS
Mine had the same thing. It was the filler neck gromet on the tank itself where the filler neck passed through. I think it was 20 bucks or something
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Sunday, September 6th, 2009 AT 9:58 PM
Tiny
CORNY9373
  • MEMBER
  • 4 POSTS
I had the same problem on my 2001, it was the gasket where the filler neck goes into the tank. It also gave me a check fuel cap warning
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Monday, September 14th, 2009 AT 2:17 PM
Tiny
ROBERT.SMITH
  • MEMBER
  • 6 POSTS
I also smell gas under the wheel wells rear diver side, where the fill hose is located on my MAZDA '96 Familia-Protege! Do you have a picture where the EVAP can is? I cant find it or probably my car isnt equipped w/this. Any Idea? My car was released in South East Asia.
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Wednesday, November 17th, 2010 AT 4:32 PM

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