Hi im having issues with water temp gauge on my 1999 Grand Voyager, Needle shoots up when going round corners or it just moves up and down now and again when driving with warning light coming on but there are no overheating issues with car at all. This also happens on a cold engine ?? Is there a fault with Gauge itself ??

 

Check your level of coolant. If your coolant is low, the sending unit may occasionally not be covered with liquid, which will produce erratic readings.

 

Thanks but im sure its ok when i was checking for it overheating, but will have another look

 

Everything full ok all levels fine. Gauge still bobbing up and down when driving , sometimes its fine for a while then it just moves up to the top then drops again. Got no overheating issues at all
Even when i change gear sometimes it moves up lol its driving me Bong Bong noise doing my head in lol

 

Check for a loose electrical connection in the sensor circuit.