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1993 SL1 w/ 220,000 miles temp gage rising

Tiny
BARREL
  • MEMBER
  • 1993 ALL OTHER MAKES ALL OTHER MODELS
My temp gage has been rising since the weather has gotten warmer. The previous owner said he replaced the thermostat recently and I purchased the car in November 2006. I have not run the AC at all yet and the temp gage usually sat at the 1/4 mark during the cooler months. The car has not has any visual antifreeze boil over but I did have to top off the antifreeze a couple weeks ago and there was no change in the temp gage effect. When the temp rises, the car idles lower than usual. What should I be looking at?
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Tuesday, May 8th, 2007 AT 3:06 PM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Does the cooling fan come on? Sounds like the previous owner installed a lower than called for t-stat. Have a 195 degree t-stat installed and go from there.
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Tuesday, May 8th, 2007 AT 3:29 PM
Tiny
PEPPERMRJ
  • MECHANIC
  • 1,158 POSTS
Hey BARREL,

Just to give you some reference, my 96 satty runs close to the 1/2 mark most of the time. The cooling fan will come on at about 3/4 and shut off a little before it gets down to 1/2.

Keep an eye on the coolant level and watch for any signs of overheating.

Good luck and let us know. :)
peppermrj
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Tuesday, May 8th, 2007 AT 11:58 PM
Tiny
BARREL
  • MEMBER
  • 3 POSTS
Would I be able to use my AC without problems at this time with my temperature issues or would you all suggest I wait until I change the t-stat to the 195 degree one?
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Thursday, May 10th, 2007 AT 9:08 AM

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