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#1
02-15-2007, 04:18 PM
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Help! 94 4.3 Running Aweful!
I have a 94 caprice with the 4.3. Lately the car has been hard to start and roughly It boggs down, smells of fumes, and sometimes stalls out or starts to run fine. Any ideas? Also i have no check enigne lights.
Also the car backfires through the intake as if its mis fire'n then after about 5 mins of driving it runs fine for the rest of the day Last edited by bigfonz80; 02-21-2007 at 06:29 PM. 
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#2
02-16-2007, 12:22 AM
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Re: Help! 94 4.3 Running Aweful!
Clogged fuel filter, low pump pressure, clogged/restricted fuel line, fuel pump, evap canister, pressure regulator etc. I'd check all of that - line pressure should be 55psi minimum at the rails. There should be a Schrader valve on one of the rails that you can attach a fuel pressure gauge to.
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1988 9C1 - Modified LM1 @ 275HP/350TQ - TH700R4 - 3.08 8.5" Disc Rear - see it at http://www.silicon212.org/9c1! 2005 Crown Vic P71 - former AZ DPS - 4.6 liters of pure creamy slothness! 1967 El Camino L79/M20 old school asphalt raper Remember - a government that is strong enough to give you everything you need, is also strong enough to take everything you have.
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