Tempature gage only works periodically. I had the ignition coil replaced. on 2001 Pontiac Firebird

It worked when I bought the car then quit. Replaced the ig coil and it worked for awhile but now only works when it wants to. Seems like when I turn on the a/c it will work and quit again a few days later.

by in Potwin, KS on May 25, 2013
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1 answer 1 comment
ANSWER by , May 25, 2013
check your cts ,it could be faulty
COMMENT by , May 26, 2013
cts?