What would make my coolant gauge fluctuate . I thought it was the cts so I UN hooked it to see And the huge still did it. I am truly stumped.

Asked by May 05, 2014 at 06:54 PM about the 1998 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

It mainly does this during acceleration. If that helps

1 Answer

135

I' d check the instrument panel connector. I had a similar problem with my LTD Crown Victoria temperature gauge. In my case the electrical connector behind the gauge was not plugged in properly. Might be tricky to check this since back side of instrument cluster is not easy to access.

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