My 99 Audi Over Heats I've Tried Everything Can Someone Help Me Please!!!!
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Audiworld Junior Member
Joined: Jun 2010
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OH YEA AND THERES AIR COMING THREW WHERE MY OVERFLOW HOSE... THE ONE THAT IS THAT CONNECTS TO MY OVERFLOW TANK... WHEN MY CAR GETS TO ABOUT 3 QUARTERS HOT..IT START PUSHING AIR THREW THE OVERFLOW..ITS ALMOST LIKE THE COOLANT IS RUNNING THREW MY SYSTEM BACKWARDS...WHAT WOULD MAKE THIS HAPPEN
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Joined: May 2002
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From: Redmond WA
OH YEA AND THERES AIR COMING THREW WHERE MY OVERFLOW HOSE... THE ONE THAT IS THAT CONNECTS TO MY OVERFLOW TANK... WHEN MY CAR GETS TO ABOUT 3 QUARTERS HOT..IT START PUSHING AIR THREW THE OVERFLOW..ITS ALMOST LIKE THE COOLANT IS RUNNING THREW MY SYSTEM BACKWARDS...WHAT WOULD MAKE THIS HAPPEN
You have bad circulation, it's either the thermostat or the pump. You can temporarily remove the thermostat and drive the car, the car won't warm up fully but that's a lot less of a problem than overheating it. Don't do this for a long period but in the summer it's OK. If it still overheats it's the pump.
The water pump is mechanically driven, it is 3-5 hours to replace and requires you pretty much do a timing belt replacement.
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Well, I assume that the hose on the overflow tank you are refering to is the thin one on the upper side.
When air and coolant gushes out from that hose, it means there is air in the system.
After coolant leak, when the engine cools down, air gets into the system to compensate the pressure difference from the loss of coolant.
If you have bled the system, and there seems to be air in the system again, there might be a coolant leak that you might not aware of.
Do pressure test on the cooling system since it only costs somewhere between 30-40 bucks.
Obviously overheating issue is not that easy to pin down.
Good luck to you.
When air and coolant gushes out from that hose, it means there is air in the system.
After coolant leak, when the engine cools down, air gets into the system to compensate the pressure difference from the loss of coolant.
If you have bled the system, and there seems to be air in the system again, there might be a coolant leak that you might not aware of.
Do pressure test on the cooling system since it only costs somewhere between 30-40 bucks.
Obviously overheating issue is not that easy to pin down.
Good luck to you.
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