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Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
I'm not sure if its my fuel pump or not. but whatever it is, it quit working. i have a 97 xlt 4.0 sohc. at first i thought it was the fuel pump but i have fuel on the rail and the plugs are getting fuel. any suggestions?
i haven't done it that way yet. doesn't the key have to on but the engine not running to take the reading? with it like that i read 20 psi and with the engine running it read 30 psi. but i had the vaccum hose connected
I've had some starting problems that i think is linked to my fuel system. i checked the fuel pressure on the fuel rail and it read a hair ocer 30 psi. whats the pressure suppose to be?