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1995 Pontiac Grand Am Engine Temperature fluctuates weirdly

Tiny
MECHMAN9113
  • MEMBER
  • 1995 PONTIAC GRAND AM
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 127,000 MILES
My '95 Grand Am will heat up after a while. It will usually get up just over the 220 mark, but I found that if I accelerate, generally between 40 and 50 mph, it will cool down to about 160 and then proceed to heat up again. I have already replaced the radiator, thermostat and heater core to fix the overheating problem that it had before I got it.
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Thursday, September 9th, 2010 AT 6:01 PM

4 Replies

Tiny
MECHMAN9113
  • MEMBER
  • 4 POSTS
Oh, the overheating problem that it had was fixed before this new problem came up. It seemed to run well for few weeks and I started making longer trips on a regular basis and this came up.
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Thursday, September 9th, 2010 AT 6:14 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
First of all thank you so much for your donation. So the temp gauge will get up to the 220 mark on the temp gauge?The cooling fan should come on when the engine temp is above 217 degree's does it?Can you ever hear the radiator fan kick on if so what does your temp gauge say. If it run's hot till you drive it sounds like your radiator fan isn't working?Let me know what you find.
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Thursday, September 16th, 2010 AT 1:47 PM
Tiny
MECHMAN9113
  • MEMBER
  • 4 POSTS
Turns out that it was just an electrical problem. The temperature gauge in the dash was not consistent with the secondary gauge in the car.
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Saturday, October 23rd, 2010 AT 7:22 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Glad to hear you got it fixed that's what we like to hear. Thanks for using 2carpros.
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Saturday, October 23rd, 2010 AT 10:53 PM

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