temp gauge

2001 OLDSMOBILE ALERO
120,000 MILES • 6 CYL • FWD • AUTOMATIC
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RON HICKS
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  • 5 POSTS
i have a 01 olds alero that only the temp gauge inside is going the opposite direction. any info will be helpful. thank you
Nov 16, 2010 at 3:55 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
If it is going the opposite direction, the wires have to be crossed. Has the switch been reciently replaced or worked on?
Nov 16, 2010 at 4:29 PM
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JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
The temp gage defaults to 100F under two conditions, the pcm detects a fault with the coolant temp sensor or the ipc loses signal from pcm. Have the trouble codes checked, manufacturer specific as well as generic. Need more info to point us in the right direction. You may need a by-directional scanner to trouble shoot?
Nov 16, 2010 at 4:44 PM
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