Devious Posted November 26, 2012 Report Share Posted November 26, 2012 Got an interesting, and slightly quizzical question. I just noticed that my Temp Gauge was reading Zero even though id been out for a spirited drive.Oh bugger, thinks I, I must have a leak, so I pulled up at home. (Only noticed as I was pulling onto my road) Anyway, turned it off, popped the bonet and no obvious signs of leaks. As the engine was HOT I didn't pop the rad cap off as I didn't fancy a facial.Its raining so i figured id sit in the car and have a fag whilst it cooled down.I flicked the ignition on and the temp started to rise. Turned it over and the temp dropped as soon as the engine was running.Any ideas as to what might be causing it? Link to comment Share on other sites More sharing options...
sonic Posted November 26, 2012 Report Share Posted November 26, 2012 Thermo stat stuck open at a guess Link to comment Share on other sites More sharing options...
arizona Posted November 26, 2012 Report Share Posted November 26, 2012 Thermostat stuck open , mines doing same new one arrived yesterday cheap fix :-) Link to comment Share on other sites More sharing options...
Devious Posted November 26, 2012 Author Report Share Posted November 26, 2012 Sweeet... Don't happen to have the part no do you? Xxx Link to comment Share on other sites More sharing options...
Limeymk1 Posted November 26, 2012 Report Share Posted November 26, 2012 I'd also check the wire to the temp sensor is secure. I'm not 100% where it is on a Gen 5, probably on the head somewhere, it will have a single wire going to it. A sudden loss of temperature on the gauge will generally only occur if the signal is lost or a big air bubble comes and sits over it. Thermostat symptoms tend to be variation of temperature with revs if it's stuck open (increased revs = temp reduction), if it's stuck closed then the temp will just go up as you run the car. Link to comment Share on other sites More sharing options...
mbailey Posted November 28, 2012 Report Share Posted November 28, 2012 Exactly the same is happening to the Mrs car. Pulled out the thermostat and part of it was broken causing it to always be open. Link to comment Share on other sites More sharing options...
arizona Posted November 28, 2012 Report Share Posted November 28, 2012 Sweeet... Don't happen to have the part no do you? Xxx mine was this one http://www.ebay.co.uk/itm/260567967969?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 Link to comment Share on other sites More sharing options...
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