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bigjohn
User
Nov 3, 2012, 11:17 PM
Post #1 of 5
(2897 views)
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1995 Mercury Grand Marquis, 4.6 engine, aprox. 152,000 miles
I'm experiencing a strong odor of gas while driving, but no gas visible on ground. I just trailered the car to Arizona from Wisconsin, recently I've replaced the engine computer, and I had a brake line to the rear axle replaced. What should I look at first in trying to find the problem? Thanks in advance for any insight you may be able to give me.
Big John
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Nov 4, 2012, 1:14 AM
Post #2 of 5
(2845 views)
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Re: Strong Gas Odor
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! Brake line replaced for an Arizona car! OK - go look at the fuel line(s) if touched in fixing brake lines,
T
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 4, 2012, 6:22 AM
Post #3 of 5
(2833 views)
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Re: Strong Gas Odor
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Fuel leaks will rarely hit the ground before evaporating. If you smell the fuel, then you have a leak and it has to be found. It may only leak when the engine is running and the system is under pressure but there is a leak somewhere to be found. It could be anywhere between the fuel tank and the fuel injector.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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nickwarner
Veteran
/ Moderator
Nov 4, 2012, 7:01 AM
Post #4 of 5
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Re: Strong Gas Odor
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This is originally a WI car? You've got rust. Get the car up in the air on jackstands and start it up. Look real close at the top of the fuel tank where the sending unit pipe comes out along with following the pressure and return lines forward. If you start up fast and easy I would suspect the return side. When you had that brake line done the others were disturbed and with salted lines they tend to break. I would recommend you replace all the steel lines on the car now or it will come back to bite you, especially the brakes. You have one brake line new you said, but any of the others will go out without warning and when you need them the most. Make sure you are using a bright flashlight, it doesn't take much gas to give you a heavy gas odor.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Nov 4, 2012, 7:24 AM
Post #5 of 5
(2823 views)
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Re: Strong Gas Odor
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Just re-read that "TO" AZ from WI. Hmmm - as Nick and I know so well vehicles North of I-90 give or take need to be hermetically sealed for all months but perhaps July and August or just mark your calendar for replacing lines, even the low mounted fuel filters rust out, gas tanks and more.
Trouble is if the fix was rust it is there and doesn't heal when removed from that. It will slow down. Any brake and fuel lines that can flake rust should be replaced before failures never welcome,
Tom (Rustochusetts, USA)
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