unusual temp gauge readings

Ruari

Active Member

Posts

281

Location

North Ayrshire

• Jun 30, 2013

• #1

Whilst driving my temp gauge drops. As soon as there is no load on the engine the gauge rises to normal. I read that if the sender is faulty then readings are calculated off the fuel temp. So does this mean my gauge is faulty. Landy runs fine with no warning lights.

 

Shifty1962

Well-Known Member

Posts

4,209

Location

The Winchester Club - Englandshire

• Jul 1, 2013

• #2

I'd check the main ECU earth.

 

Ruari

Active Member

Posts

281

Location

North Ayrshire

• Jul 6, 2013

• #3

Spot on Shifty.

Checked the ecu earth - I gave it a clean and it was a bit better but not 100%. So I ran a cable from the negative to the earth and bingo.
I'm guessing the bolts to secure the aluminium tub have some galvanic corrosion which won't be helping.