2006-11-20 08:50:05 · 5 answers · asked by brandon m 1 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
The electric cooling fan isn't coming on to move air through the radiator. Get it fixed.
2006-11-20 08:53:16 · answer #1 · answered by oklatom 7 · 0⤊ 0⤋
Assuming it works just fine at freeway speeds, then your fan clutch is probably hooped, and is not holding your fan at engine rpm during idle. Have you checked your thermostat? A bad thermostat will cause overheating if it's stuck closed, but would likely promote overheating all of the time, not just at idle. Another thing to consider is your water pump, which may not be moving as much water as the engine requires for cooling. At higher rpms the problem would be less noticeable. It could also be a clogged cooling system or even a bad head gasket.
Start by trying to turn your fan manually when the engine is off. If it spins freely (it should spin, but with a little friction), then the next step is to start the engine and get it good and warm. Go for a little drive. When you get back, shut the engine off and try spinning the fan again. If it spins as free or freer than before, replace your fan clutch. It's supposed to tighten up as it gets warmer.
Unless you have a temperature gauge on your dash that reads out in degrees, it will be difficult to check your thermostat. Fortunately, they're cheap and easy to replace. If you can eliminate your fan clutch as the problem, replace the thermostat. Your auto parts store will have a book giving you the recommended part # and temp range for your car.
If the problem doesn't go away, you're either gunked up in the cooling passages, or your water pump isn't moving the amount of coolant it should be. Because changing the pump is somewhat involved, you might want to try flushing your cooling system out. There are little tee kits available at your auto parts store that will make the job easy. You just splice them into a heater line and use a garden hose to flush the cooling system out. For even better benefit, buy a cooling system flushing agent and run it in your car for a while before flushing it out with the garden hose.
If all of that fails, it could be your water pump, or even a bad head gasket. If you're losing coolant all the time, your exhaust is very white and smells sweet, or you see lots of bubbles in your coolant with the rad cap off, suspect a head gasket. If none of that is occurring, and the engine has lots of miles on it, suspect the water pump.
Good luck.
2006-11-20 17:14:31 · answer #2 · answered by kensval 2 · 0⤊ 0⤋
I'd get that fixed before putting a supercharger on it. Yes it maybe idling too high.
2006-11-21 02:38:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋
there is a sencer that controls the cooler fan it costs about 12$ and you can replace it your self if that does not fix it then go to the shop and ask the monkeys there....
2006-11-20 17:08:09 · answer #4 · answered by red 3 · 0⤊ 0⤋
Check your cooling fan.
2006-11-20 16:53:47 · answer #5 · answered by pikeruss 4 · 0⤊ 0⤋