It will drive ok on the higway, but once getting off at a lower speed it feels like its gonna staal. I get on to the side of the road an put it in park and RPM's stay at 3000. Engine also sounds louder thenusual when driving. Once in park, I have to shut off the truck, start it up again an floor the gas pedal until it comes back to normal. It does it only once in a while. But twice this week. Also, oce i slow down and press on the brakes, I've noticed once i release the break, the truck wants to go off like a race horse!! Any suggestions would be appreciated. Thanks
Check your idle control valve.
SOURCE: once car is
Coud be a cable problem or a stuck TPS (throttle Position Sensor) Check for binding linkage with the engine off operate the accelerator while someone watches the action to make sure it goes back to the original poing with no binding or sticking Replace the accelerator Cable or Lube any sticking linkage with liquid wrench,
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Thankd you, Randy
SOURCE: 1967 Ford Mustang-- idle problem
If I had to fix this, I would use a tiered approach. You have several issues to deal with. 1st- is the engine timing correct (lets assume it is), try adjusting the choke (blackdial on the ffront of a single barrel, turn towards lean) this should bring down the idle. Turn it till it almost dies then turn in the opposite dirrection SLIGHTLY until it steadies out. The engine might shake more now (it did w/mine) so now you losen the 1/2 bolt that is behind the distribibutor. Now that the dis. is lose turn the whole diss. assembily slightly in either direction. One way will steady out the engine, this is adjusting the ignition timmiing. If all that works out you should be golden. Of course there is a lot of possible causes connecting rod length between the gas pedal & carb, vac. leak(through a vac. gauge on it, that will help finding wether or not there is a leak). if this doesnt work repost with results and a vacum reading. I'll check back
SOURCE: 1999 Ford SVT Mustang Cobra and a rattling sound
as for the rattling sound have you checked the heat shield on the catalytic converter, mine was loose and was causing a rattling sound when it was at idle, and would go away as the rpm's increased.
SOURCE: ABS causing vibration in o4 f-150??
Since the rotor isn't warped. Do you have grooves in the rotor? Are the pads evenly worn? You a bad front 4X4 C/V shaft will also cause this reaction.
I would just unplug the ABS fuse and it will bypass the system to regular old-fashioned brakes.
SOURCE: Car accelerates without my pressing the gas
.the control sensor throttle ,look on the opposite side to the cable and a little box thingy with a wiring connection ,unless its a later vehicle then this will use a fly by wire.But i do fell this type of fault is beyond the average weekend mechanic and i would advise you to visit a dealer
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