My 2000 ford taurus keeps overheating while it idles, and i have already replaced the thermostat, was wondering if it could be the fan, or the radiator cap?
If it's only happening while sitting at a stop light and idling, the problem is probably in the cooling fans. Turn your A/C on high and pop the hood. Check your cooling fans to see if they're running. If they aren't running, it's the fan relay. In my 99 Taurus, the high speed fan relay is located in a slim black box next to the battery, it's the large square relay right up front. Use a known working relay of the same size and pop it into this relay. If the fans turn on, there's your problem. Replace the relay. Try the same with the A/C on low, but this relay is in the power distribution box (number 31). The 2002 may have a CCRM (Constant Control Relay Module). The CCRM is an expensive part (over $100.00). You'll be able to tell because the CCRM is a very large box that is mounted next to the battery and contains relays that are not replacable. It'll have a part number followed by a large letter/number. You'll need this part number and large letter/number to order the new.
Check your electric radiator fan. You can disconnect the plug in and run wires from your battery to the fan to check it. If it runs hooked up direct, reconnect the plug and start the car. Let it reach operating temp and see if the electric fan comes on. If it does not come on when the engine warms up, you either have a faulty fan relay switch or a bad temperature switch. I would check the relay first.
For car running hot and overheating issues, I suggest to you go
through this help links. Click this link below and go through the
troubleshooting procedure to take care of the problems: ----Car runs hot? http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------All types of car overheating problems and
troubleshooting?
http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?
http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
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Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------overheating? http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------Car engine Overheats and transmission starts slipping?http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.
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