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My 2001 malibu has just hit 207000 miles. recently it began revving fast when I came to a stop after a long trip on the highway (like at a stop light). I had to turn the car off to get it to stop revving unusually fast.
Now my car won't idle. I can't drive it or it will stall as soon as I take my foot off the gas.
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Fast idle is often caused by a faulty TPS. Throttle Position Sensor. The computer is not able to determine exactly where the throttle is so it compensates by applying too much throttle automatically to avoid stalling the engine. Just went through this with a delivery truck at work that would run at 40 without touching the gas. Scary ride in a 2 ton truck.
If it's running rough, chances are that it's misfiring. If the Check Engine light is flashing/blinking, it is definitely misfiring. If that's the case, drive it as little as possible... Or straight to the mechanic because the more you drive it while it's misfiring, the higher the chance is of you ruining your catalytic converter.
this could be an air leak in a hose,,,have a friend hold the brakes on and stick your head under the hood,,with the engine running press the brake on,,you may here the whistling and fine were its coming from i its a leaky hose fix it fast before you loos your brakes
Ford had a recall/ extended coverage on the fuel pumps in the focus vehicles. Do you know if this was done? If not call a ford dealer with your Vehicle identification number (located in drivers door jam or on registration) and they can let you know if it was done. The concern with the fuel pumps was that they would stop working when they got hot. The replacement pumps were free. It can't hurt to call and ask.
go to a shop and see if there is a code stored in memory. anything else would just be a blind guess. If you are near an Autozone that do a scan for free
I would stay away from any car that has that many miles on it, that is over 150,000 miles, the engine might be fine but the steering and other components are at the end of there useful life span unless he or she has records to back up needed repairs, look for a car with less than 100,000 miles on it.
I have the same issue of low gas mileage. My 2008 Kia Rondo with V6 (2.7Lt) gets 20-21 mpg in average. Even for highway mileage, it is around 21-22mpg. Very poor gas mileage. Disappointed. I hope it would improve in the future.
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