Question about 1991 Ford Mustang

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I have a 91 5.0 ho automatic i put in drive at take off it seems fine once it shifts gears it boggs down i eather have to shift to first or floor it it is all so loading up when i floor it smoke comes out in side of car smells like gas real strong i haved replaced fuel filter o2 sensers exzaust map and mass air flow sensor

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Dear Bogger.......First off......congrats on havin a pony!!!! I've always loved those vehicles....and let's get to the nitty gritty on the thing...the first thing that i want you to do is pop open the hood on her and pull off the vaccuum line off of the fuel pressure regulator.If there is fuel coming out of the regulator where the vacuum line goes then there we have it...There should be no fuel at all comin out of the regulator where the vacuum line connects. If you see fuel comin out or you can smell fuel in there....that regulator has failed and it's loadin up the cylinders.....after you inspect that then check your fuel pump pressure by tappin into the fuel pressure rail. Fyi...the regulator is on top of your fuel rail ...if that part has failed then it's a 40 dollar fix at autozone or checker auto parts...please get back to me if ya have anymore concerns with your baby!!!!! I HOPE I COULD HELP!!!!

Posted on Nov 17, 2009

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