Hey, My 840's engine temperature keeps spiking up for a couple minutes then it normally goes back to normal. It does this repeatedly when I drive the car. I was wondering what the problem could be. Im thinking it is the radiator, but I have read some things that are saying it could be the temperature sensor. Any suggestions what it could be would help!
Last edited by clayE31; 10-03-2018 at 11:09 PM.
My water temp will read normal for weeks then it will drop to zero for a short period then going over a bump in the road when turning left will pop back to normal.
Been doing this for years and nobody has found out why I have spent hours looking at the wiring.
Hope you get your problem sorted.
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