when i go down the road, the air cools it down again
2007-01-09 18:25:38 · 8 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
You don't tell us what vehicle you have.
There are several causes for this malady, but by far the most common is that the cooling fan isn't engaging.
If your car has an electric cooling fan, try this------>
Start the engine and let it idle. Open the hood, or stand directly in front of the car, and ask a friend to turn the A/C on MAX and on HIGH fan. Listen to the front of your car.
Do you hear a fan come on?
Does it sound like a loud roar?
If you don't have that sound, then the problem is that the fan isn't engaging.
Now it is time to perform diagnostics.
1) Check that the fan is getting power. If it is, the fan motor is defective.
2) If it isn't getting power,
a) the fan relay(s) is defective and must be replaced.
b) the sensor for the temperature in the engine
coolant is out of spec and must be replaced.
c) The fuse for the cooling fan has blown
3) If all components are functioning properly, then it is probable that there is a poor electrical ground for the fan circuit.
If your car doesn't have an electrical fan, you should check the belt that turns the fan and water pump.
Happy Motoring
2007-01-09 18:44:25 · answer #1 · answered by Ironhand 6 · 0⤊ 0⤋
Dip your hand in water for a moment, then hold it still in the air. Now while it's wet, move your hand through the air. Your hand gets colder while moving doesn't it? Somehow, movement seems to cool the object in motion.
A reason why your car overheats when idling may be that the sun makes it hotter.
2007-01-09 18:35:10 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Theres not enough info to give a correct answer but as stated above it could be your fan, low coolant level, bad water pump, or simply air in the system. Do the basics and check your cooling system. Easy stuff to do.
2007-01-09 18:55:34 · answer #3 · answered by 2ndSquad 2 · 0⤊ 0⤋
The radiator fan is what keeps air flowing and the engine cool when it's not moving. I would check that first to see if it's not kicking on.
2007-01-09 18:31:25 · answer #4 · answered by Anonymous · 0⤊ 0⤋
your fan is not coming on (if electric) or your fan clutch is junk. --or last reason would be a worn water pump. the fan system simulated 27-35 mph road speed.
2007-01-09 18:32:52 · answer #5 · answered by redrepair 5 · 0⤊ 0⤋
your fan may not be working properly or the water pump may not be circulating the coolant fast enough at idle
2007-01-09 18:31:14 · answer #6 · answered by Aviator1013 4 · 0⤊ 0⤋
try replacing the thermostat. It might be stuck, plus it's a cheap and easy place to start.
2007-01-09 19:33:07 · answer #7 · answered by John B 1 · 0⤊ 0⤋
Because you are overheating the engine
2007-01-09 18:40:32 · answer #8 · answered by michelebaruch 6 · 0⤊ 0⤋