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My radiator fan is loud and seems to stay on to long even when the weather is not that hot. and at times it idles wrong

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This could be caused by problems with the thermostat or with the cooling system. How many miles and what year is the car? If the coolant has not been flushed in over 35,000mi, I would start with flushing the coolant. If this does not resolve the issue, there could still be an issue with the thermostat or water pump.

Posted on Sep 06, 2009

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My 2006 VW Jetta is making loud, screaming/screeching, sound from the passenger side-front, behind the the dash/glove box, between the engine and wheel.


I would like to think it is the electric fan behind the radiator that is screeching. When you stop the car, everything should stop, but that fan. That fan is supposed to cool the radiator, even after the engine is off and the car stops. It would not be so bad, because it does not run as much, in cold weather, but in hot weather, it should start sooner and run longer.
I needs to be replaced.
Be blessed.

Feb 25, 2014 | Cars & Trucks

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My 2001 Pontiac Montana has loud noise while it idles. I was told it was the transmission mount. It seems to sound rattly while it shifts gears. Also, if I just ride around the blocks it seems to get hot....


I doubt the cooling problem is either. The most common reason for running hot at slow speeds is not enough air coming thru the radiator. Either the cooling fan is not coming on, or there is a blockage in the radiator.
And the loud noise could be a mount. You may want to get a second opinion before having the repair done.

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Whay does my radiator fan stay on whaen i turn the car off


It stays on to continue cooling the contents of the radiator, which remain hot even after you turn your car off. When the coolant is cooled, the fan will turn off.

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1 Answer

What would cause my 2002 zx2 to overheat ?


Faulty thermostat, failed water pump, inoperable radiator fan, low coolant due to leak, faulty radiator cap, leaking head gasket, low oil, major exhaust leak near front, exhaust blockage, or incorrect ignition timing. If there is crust around radiator cap, cap is leaking. How long does it take to overheat? If it runs smoothly when cool, and all fluids are at correct levels, you can rule our head gasket, radiator cap, and ignition timing. If it overheats very quickly and fluids are correct, it is probably thermostat or water pump. If it seems to do better at higher speeds, it is probably radiator fan. You can check this by allowing vehicle to run in Park with hood open. Monitor engine temp on dash. When it is at or slightly above normal running temp, radiator fan should come on. Also note exhaust sound. If it seems loud and overheats gradually, you may have a leak before the converter. If the exhaust sounds quiet, but exhaust manifold is getting extremely hot (may glow red), there is probably a blockage. There will also be OK starting and idle but poor acceleration if exhaust is partly blocked.

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1 Answer

Overheating


When you mention the radiator having a hot upper in pipe and a cool bottom out pipe tells me that the coolant is not moving around the engine. This could be down to a water pump not working, blocked radiator, thermostat not opening. The bottom hose should be cooler than the top hose but once the engine is up to working temp which is around 85/90 degrees c for an audi the bottom still should be farly hot to touch. Hope this helps

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1 Answer

Overheating at idle


sounds like a partially plugged radiator. Colder temps will be OK but when weather warms up the problem shows up too...check for leaves etc between the radiator and ac condenser before doing anything else. Stuff on the outside will act the same way as an internal obstruction.

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1 Answer

Oil level light/smoke from radiator overfill/sludge in same


If oil is Clean and there is no White Smoke that Disapates Fast, Check for Transmission Cooler (IN RADIATER) Problem

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