Outside temp sensor question

ianbstag · 7th March 2015, 17:42

It would appear that my outside temp sensor is on the blink, it's reading between 8 and 10 degrees too high.

My question is, could this be the reason for erratic heater performance?

The engine gets up to temp as normal, but I've only been doing short journeys for a week, and all I've been getting is cool air from the vents, so I thought blocked matrix.

But on a longer journey yesterday, suddenly everything sprang into life, and toasty toes were the order of the day

I've ordered a new sensor, and will fit asap, just wondered if that could affect the heating?

rich17865 · 7th March 2015, 18:21

Sometimes it can be high resistance due to oxidisation of the wires inside the sheathing immediately after the plug that fits onto the sensor.

The fix is strip and reconnect with good clean wire.

Or, it could just be a sensor

7th March 2015, 17:42	#1
ianbstag Loves to post MG ZT 260 V8 Join Date: Aug 2013 Location: Mansfield Posts: 271 Thanks: 77 Thanked 57 Times in 49 Posts	Outside temp sensor question It would appear that my outside temp sensor is on the blink, it's reading between 8 and 10 degrees too high. My question is, could this be the reason for erratic heater performance? The engine gets up to temp as normal, but I've only been doing short journeys for a week, and all I've been getting is cool air from the vents, so I thought blocked matrix. But on a longer journey yesterday, suddenly everything sprang into life, and toasty toes were the order of the day I've ordered a new sensor, and will fit asap, just wondered if that could affect the heating?

7th March 2015, 18:21	#2
rich17865 This is my second home Transit Connect Join Date: Feb 2011 Location: Crewe Posts: 9,532 Thanks: 868 Thanked 1,619 Times in 1,095 Posts	Sometimes it can be high resistance due to oxidisation of the wires inside the sheathing immediately after the plug that fits onto the sensor. The fix is strip and reconnect with good clean wire. Or, it could just be a sensor