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2000 Chevrolet S-10 overheating problem when in traffic

Tiny
DEVELOPER7
  • MECHANIC
  • 2000 CHEVROLET S-10
  • 132,122 MILES
My truck is having issues when driving slow? On the highway the temperature stays down, but as soon as I get into town, it starts to overheat. I am not losing coolant, but there is something going on and I need to get it figured out.
Monday, September 2nd, 2013 AT 9:12 AM

2 Replies

Tiny
THIS IS MIKE
  • MECHANIC
  • 686 POSTS
Check your cooling fan. Open the hood and look to see if the cooling fan is turning when the engine is warm, next check to see if the cooling fan comes on when you turn on the air conditioning. The fan has two ways to come on, if the coolant temperature sensor has failed it may not trigger the fan to start, turning on the a/c it bypasses that circuit and turns the fan on by default to help the climate control system to operate more efficiently. Also check the fan clutch, if the fan spins freely then clutch may have failed.
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Monday, September 2nd, 2013 AT 9:20 AM
Tiny
DEVELOPER7
  • MECHANIC
  • 42 POSTS
Thanks, it was my cooling fan motor that failed. I replaced the cooling fan and everything is back to normal temperatures.
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Thursday, October 24th, 2013 AT 8:37 AM

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