was driving one night at about 35 mph then the engine just revved up real high. tapping on the gas pedal didn't make a difference. turned the truck on and off several times to and it finally slowed down on it's own. that was 6 weeks ago. now it is doing it again, but nothing is making a difference. Have replace the mass air flow sensor which had a broken wire and have tried a fuel injector cleaner additive. My friend thinks it might be the fuel injector stuck open, but he knows nothing about cars.
possible fuel injector problem on 1991 Ford Ranger
by dragon8370 in Springfield, OR on December 27, 2010
1 answer 1 comment
ANSWER by ghostima96 on December 27, 2010
One time i had a customers Ford taurus do that to me. after many thoughts and ideas about what it was i discoverd that the clip that holds the cruise control cable to the throttle control lever on the intake had broke and once in a great while it would get jam the throttle open and then eventually work loose . check to see if its still connected to the throttle lever on the intake
COMMENT by dragon8370 on December 27, 2010
thank you, I do know that the throttle is not stuck. I have checked that... also I think I ruled out the fuel injector and throttle because when the air flow sensor is hooked up then it revs high, when unhooked it won't stay idling. that tells me that the throttle is not open and the fuel injector is not forcing fuel through. I hope that makes sense. I don't have cruise control or anything... not even a radio. all manual. Gonna check all wires and connections tomorrow for corrosion. The truck spent 18 years on the Oregon coast.
Runs fine, let it sit for 20min then start & it runs rough & PO302 pops up. Turn it off let cool down for awhile & then its fine. Replaced coil, plugs & wires and fuel filter. No overheating, temp...
it does this only after i drive it for a while, then shut it off and let it sit for a few minutes. when i turn the key, it starts, the shakes and shudders, then stalls. the only way i can fix this ...
Changed the timing belt and it still won't start. Checked the inertia switch and it seems to be ok. The fuel pump turns on you can hear it. I turned the key over and pressed in on the fuel pressure...
Can I use any 3.0L engine or only ranger? Can I use non- flex fuel and could I use an engine from a aerostar, taurus, or sable? If I can use the other engines what would I have to change over. I'm ...
just started 2 days ago 4 oct 2010