Quote:
Originally Posted by Luxobarge
Very true. However, the coolant temperature sender on these cars is also the sender for the temperature guage, so if it's sending duff information you would expect to see an "odd" reading on the temp guage - it should be at the 3 o'clock position when hot, if it was anything else when the car failed then that's your culprit, but if it is/was reading correctly then it's a lot less likely.
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My 1998 V70 had a running problem a couple of years ago which I could not figure out (checked all the usual such as plugs, leads, distributor etc.) so took it to a Volvo indy who diagnosed and replaced the temp sensor even though the gauge worked perfectly. This resolved the issue and was a comparatively cheap fix.