Temperature Gauge Weird Readings.

[nexsuperne]

Hi, my 2001 galaxy temperature gauge is doing strange things. It reads normal temp for some of the time, but not all of it. Its like its only seeing the water temp when the thermostat opens. I put my bluetooth obd2 with Torque on it, and according to the ecu, it is swinging between -38c and 95c when warm. Any guesses please?

 

Also, what should the maf be reading?

 

Thank you

[chrispb123456]

Probably needs a new coolant temperature sensor (common fault)

[nexsuperne]

Hi Chrispb123456, thanks for the reply. Whereabouts is the coolant sensor on these engines?

[chrispb123456]

The picture is a view from the rear of the engine, note the exhaust manifold in the pic

removal of the fuel filter and air charge pipe will give access.

 

 

[ghr]

Same thing happened on mine (115 psi diesel). Changed the temperature sensor then all okay. As usual I went to Volkswagen dealer for the part; seem to remember it was cheaper than Frauds but VW don't guarantee the part as it's not fitted to a Sharan; small price to pay in my book. Bit of work getting to it from the top. It's held in place with a horseshoe clip that slides in from the bottom. Danger of dropping this into the depths on refitting - tie a length of cotton to it before refitting so you can retrieve it if you do drop it.