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The mkiv Supra Owners Club

Temp gauge going up and down


ben_harmer32

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  • 4 weeks later...
On 5/24/2021 at 10:29 PM, jim_supra said:

I'd say it's electrical given how fast the needle is moving up and down whilst revs seem to stay relatively stable. Perhaps coolant temp sensor?

If the temp is flying up that high the system would be over pressuring and coming out of the filler cap wouldn't it? If it isn't I agree that it is probably sensor related, unless there is a serious blockage somewhere.

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