1994 Mercury Cougar Fuel Leak

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SHELDYN
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I just bought my first car a '94 Mercury Cougar XR7 and it ran fine when i bought it. Then when i drove it home it was acting like it wanted to die and i thought it was out of gas and i just barely made it home, it quit in my drive way. Then the next day i tried it again and it turned on ( 4.6 L, V8, 79,000 miles) but the spedometer would go to 120 mph and if I wait a minute or press the brake or shift it will stall. The odometer also turns when the spedometer is up to 120 and before it stalls it goes back down to 0. i am suspecting a sensor is bad but i really don't have a clue what one. I could really use help i haven't even been able to drive my first car. :(
Thank You so much,
Shells
Mar 23, 2007 at 1:11 PM
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MERLIN2021
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Is the a digital dash? Are any codes set?
Mar 24, 2007 at 2:12 PM
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SHELDYN
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no but now its not doing that but the gas is leaking all over and i guess something is going on with the oil and gas mixing or something to that affect?????? Do you think it's a gonner??????
Mar 27, 2007 at 2:41 PM
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MERLIN2021
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I think if you just bought it take it back and get your money back!
Mar 27, 2007 at 7:15 PM
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SHELDYN
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thank you but i don't think that is an option. I think the guy that sold it to me knew all of this was wrong and lied to my face. And the lemon law won't help me either. I am pretty much screwed. Do you suggest anything that we could fix to maybe salvage my car?
Thank you so much.
Mar 28, 2007 at 4:23 AM
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MERLIN2021
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OK try this one, on the fuel rail there is a part with a vacuum hose on it it's call a fuel regulator, try replacing it...When you pull the vacuum hose off see if there is any gas in it...if so it is gone!
Mar 29, 2007 at 9:25 AM

Suggested Repair

Inspect the fuel pressure regulator on the fuel rail. Remove its vacuum hose and check for fuel inside; if fuel is present, replace the regulator.

Conversation Summary

A 1994 Mercury Cougar XR7 initially stalled and showed erratic speedometer and odometer readings. The owner later reported fuel leaking and suspected fuel mixing with oil. The expert advised checking the fuel pressure regulator by removing the vacuum hose and replacing the regulator if fuel is found in the hose.

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