Question about 2002 Ford Taurus
Clean out the throttle body with fuel injection cleaner then check your vacuum lines if all are good then you should have codes set your check engine light should be on verify that the check engine light bulb is not burned out turn the key to the on position you should see all the dash lights //oil//battery//check engine light if you don't see it the bulb is blown out and if all other things I mentioned are done and the problem is still there either your throttle position sensor is bad or your idle air control valve but I would go to the throttle position sensor first because your car is now 17-18 years old by the door sticker date and if you don't know the repair history because it's a used car check that sensor first if you can get a code scanner from someone/ loaner from autozone you will no for sure
Posted on Sep 15, 2019
you have a bad temp sender,if this does not solve the rough idle than you have multiple issues and your idle control valve is not functioning properly try removing and cleaning it.its also referred to as IAC (intake air control)
Posted on Feb 05, 2010
SOURCE: belt diagram on 2002 ford
Dayco.com offers a free online comprehensive serpentine belt reference tool - including routing diagrams and tensioner information.
Somewhere under the hood, usually on the fan shroud or near the radiator, there should be a sticker with a diagram of the belt routing, 2001 may even be on the hood. On this diagram it will show a tensioner pulley and idler pulley and the approximate location. Most Fords use a 15mm or 16mm bolt on the tensioner, this is where you put a wrench to rotate the tensioner and remove the belt. When you turn the tensioner bolt turn towards the front of the car, there will be a lot of tension so pull hard.
Posted on Nov 20, 2010
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