Hi All, i'm new to the site. I'm running a Defender 90 200tdi with bout 213,000 on the clock. After a major overhaul of lots of new stuff, steering box, alternator, starter motor, pwr steering pump, wheel bearings, head gasket to mention just some of the stuff! It's nearly right now though apart from a few niggly things that need doing (I HOPE).
The problem I have is with the temperature gauge which when I do long distance at about 65 - 75 mph it bounces about mainly in the red hot area of the gauge, sometimes literally bending the needle off the end.
It has only done this once or twice locally when the engine is just warm not hot. But every time I drive for over an hour it happens and mainly at high ish speed. Then all of a sudden it will go back to normal.
If when this happens and its in the red I pull over and turn the engine off then back on again it goes back to normal and sits just a needles width above half way.
I have replaced the sender which fixes into the top of the engine and it hasnt made a difference.
Any advice would be greatly appreciated as it gets a bit scary at times and generally ruins my outing.
Thanks Terra Dog