BT52 Posted August 1, 2007 Report Share Posted August 1, 2007 Bit confused. If I start the car with 'Econ' activated ie the air con compressor off, then the temp gauge works fine, goes up to around 90 degrees. But if I then turn the Econ off, ie the air-con back on, then the temp gauge falls back down to 50 degrees within seconds. If I turn Econ back on then the gauge still stays at 50. What is going on? Mark Link to comment Share on other sites More sharing options...
Ska Posted August 1, 2007 Report Share Posted August 1, 2007 Wonder if the Two stage eleccy fan is staying on at the higher level when you activate the AC. Can you see or hear it turn on? Link to comment Share on other sites More sharing options...
BT52 Posted August 1, 2007 Author Report Share Posted August 1, 2007 I doubt it would drop the temp from 90 to 50 in 5 seconds, and it wasn't running when I looked under the bonnet yesterday. Is it the same sensor that the dash temp gauge uses that the ECU and radiator fan use? ] If not I'm not too bothered. The idling speed drops to a sensible level which suggests it isn't running as if it thinks it has just started, and I average 30mpg on the motorways easily so I don't think it is running rich. (4.2 by the way) Too scared to test the radiator fan in case it doesn't come on... Link to comment Share on other sites More sharing options...
PsYcHe Posted August 1, 2007 Report Share Posted August 1, 2007 You could maybe have a dodgy thermostat which is sticking open and not closing again until properly cold (if it's a 40v they they are renowned for dodgy thermostats).. Given that it's going as low as 50 and not coming up again, it does sound more like an iffy temperature sender though. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now