Temperature needle goes above normal sometimes

[awd2lturbo]

I have a stock 95 TSI and have this problem: when the car is on flat grounds, the temperature gauge stays normal. However, when it's on a steady uphill, the gauge would go above normal. I've seen it go almost 3/4 high. For obvious reasons, I haven't push the car further. My friend put in an aftermarket themostat not too long ago and I think it was after that time, the car started to behave like this. He did say the thermostat he put in has a higher temperature rating than the stock one. Should I have a stock one put in? Any help would be appreciated.

 

[heavyD]

When you are going uphill, you are putting more load on your engine. This may be why the temp goes up. Usually you want to go with a thermostat that opens at a lower temp not a higher temp. You may want to put a stock one back in as higher engine temperature is not a good thing.

 

[Enigma_Man]

Yeah, you'll want to get rid of that thermostat if it's a higher rated temperature.

After that, make sure you have plenty of coolant, and let the car run with the radiator cap off (from being cold, don't take it off when it's hot) for a while, so the air bubbles can work their way out.

-Jesse

 

[awd2lturbo]

Thanks for the replies guys. I will get a stock one in the near future.