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01 Jetta overheating, possibly fan, update, need help

Sorry for the poor posting but I don't know how to do it any other way. I posted the message below and the update is when the airconditioning is turned on it still blows hot air.

Any ideas? Thanks, Dermott

Hello, We have an 01 Jetta with 144k miles, automatic. Replaced timing belt and water pump at 83k miles, new accessory belt at 142k miles. Normally, the temp gauge is at

190 degrees and never budges after it warms up. It is marked with hash marks up to the red mark in 17.5 deg increments, the red mark is at 260 degrees F. At present, it goes up to 245 degrees at which time I turn the car off. This has happened twice.

No coolant leaks, no oil loss, checked underneath and everything looks fine. Checked hoses, connections for leaks - none. When I open the coolant reservoir, a slight pressure release is heard and the reservoir fills up to about 3/4 inch more.

At the 245 degree point, the small fan is running and the larger fan is not.

My presumption is it might be the large fan?

Any way to test which or am I heading in the wrong direction?

Thanks for any help, can't afford a repair shop just now,

Dermott

Reply to
diarmud
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When your vehicle is at or above normal operating temp. does the heater blow hot air if it's turned to the max. hot setting. If you get heat out of the heater odds are you have a failed thermostat. If you don't get heat it's probably the water pump. Let us know..

Reply to
samstone
1- got heat or not 2- do fans come on low speed with ac on

Reply to
Lost In Space/Woodchuck

Sorry for the delay in answering.

The larger radiator fan did not come on. Did testing from Haynes and Bentley and decided it ws the large fan. Large fan did not work when power applied, new one did. So I replaced it.

NEVER thought to check the lower radiator hose, which was cool when I checked it after taking car for ride and it did not overheat as much but it did go over 190 which it never has. So I'm on to replacing the thermostat also.

Our daughter told me the temp gauge has been going up "a little for a while".

dont know why they both went about the same time.

Car has 145,000 miles on it and has already paid for itself. Hope to keep it to 250,000.

Thanks, Dermott

Reply to
diarmud

I have noticed when the mix is more water than coolant the temperature stays a little lower sometimes. So maybe the opposite is true............more coolant = warmer temperature.

Reply to
dave AKA vwdoc1

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