1993 Pontiac Bonneville troubleshooting

Tiny
DAWOMAN1200
  • MEMBER
  • 1993 PONTIAC BONNEVILLE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 17,000 MILES
When the car is sitting still at a stop light etc, the temperature gauge will go to over 120 degrees, but when on highway the temperature gauge stays where it should be and the heat seems to get warmer. What would this indicate as to the problem?
Saturday, December 22nd, 2007 AT 1:01 AM

1 Reply

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Check coolant system and coolant fan
also flush the system then change thermostat
fill with new coolant
make sure fans working!
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Sunday, December 30th, 2007 AT 8:59 PM

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