My temperature gauge is pegged at zero & doesn't move, what is causing problem? on 2000 Buick Park Avenue

It was working well before I took it to a shop for an analysis of the "service engine soon" light. Could they have caused the problem during their evaluation? Later I took it in again and they said the instrument cluster needed to be rebuilt and they will have it done but the cost will be almost $400---don't have the money!

by in Hayward, CA on April 10, 2012
3 answers
ANSWER by , April 11, 2012
Very unlikely they could have caused this failure. If have doubts take it to another shop for diagnosis and opinion.
ANSWER by , April 11, 2012
Make the wire didn't come off the sensor under the hood.
ANSWER by , December 21, 2013
I had the same problem with my gas gauge after i had the battery replaced. All i did was get a magnet and hold it close to the needle and turn counter clockwise and it worked perfectly after that.