arranj wrote:TristanC wrote:I think the gauge is stuck, as when I turn the ignition on, the dial is slightly above 100 and drops to 100......
What makes you think it's stuck? What you're describing sounds normal to me.....? Does it go up as the engine gets hotter? The gauge itself isn't that accurate, but it's in F not C, and starts at 100. If you're seeing it move when powered then that sounds correct....
Don't try to fix something that isn't broken, you will break something else!
Because it doesn’t move off the 100 mark - even after the trip to the MOT. Fans were blowing too - although they are now stuck on at ignition. (New otterstat required)
When ignition is off it’s just above the 100. Turn ignition on, and all gauges drop to their start positions.
I’ve got a new temp sender in, tested continuity between sender and bulk head and that was ok.
Tried grounding the connector while ignition on, but no life in the gauge.....
If I tap the binnacle (when car is off), the gauge will move up to say 130 or so..... and there it stops until I turn ignition on and it drops to 100 again and stays there....
So perhaps not stuck..... but now I believe just not getting a signal.
Maybe tbr nuts on the back of the gauge are the issue.... I can see them and they look a little corroded... but no more than the others and the gauges are all good......
Now - I’ve looked at the wiring diagram and see the door ajar and seatbelt lights take power and ground on the same cables as the temp gauge.(green and black) and neither of them work .........
Perhaps it’s power and/or ground at fault.....