Faulty temp gauge

[corvettedave]

Ive got a cayman s 2007, while driving today, only 5 mins into the drive the temp gauge went to zero, and the red bar at the top lit up red, for overheating i take it, then the gauge started working again with in secs, back to normal 80 temp and red overheating light went out, when i stopped a few mins later, the car did have that hot smell about it

anyone seen anything like this?

dave

[Rockster]

After the engine cools down check the coolant level.

If the level is low top up with distilled water and get the car to a shop to have the cooling system leak found and fixed. Bear in mind it might be due to a leaking cap.

If the coolant level is ok the problem might be due to an intermittently failing coolant temperature sensor. Or it might be due to a loose connection. (My Boxster had (still has AFAIK) a marginal coolant sensor connector. How I know this I need not cover right now, it is a long and involved story. While the gage or warning lights have never reacted like you described, the actual temperature readings (logged) have upon occasion spiked under some specific conditions: hard turn on rough pavement.) My point is do not dismiss a bad connection/connector.

[corvettedave]

ok cheers mate, going to have it checked over, coolant level seems fine, iam thinking temp sensor or wire problem

[Fickle1]

Hi, I used to get this regularly on my 996.2 Tip. The car was over cooling and because it didn't warm up in the expected manner/time frame the monitoring system uses the temp gauge and light to alert you. It took me ages to suss it out, and in my case a change of thermostat eventually rectified the issue.

[Fickle1]

Hi, I used to get this regularly on my 996.2 Tip. The car was over cooling and because it didn't warm up in the expected manner/time frame the monitoring system uses the temp gauge and light to alert you. It took me ages to suss it out, and in my case a change of thermostat eventually rectified the issue.

[corvettedave]

Hi there, I got the durametric ecu reader, found temp sensor fault, so replaced that, had to delete the fault codes and all working again

cheers for your help