When I bought it it a few weeks ago it was.

Tiny
ANONYMOUS
  • 1988 GMC S15
  • 150,000 MILES

When I bought it it a few weeks ago it was overheating, I replaced the thermostat and the water pump and it is still overheating, the fan is a thermostat controled fan and it seems to be fine and I see no problems with radiator flow. I am stumped

Friday, October 19th, 2012 AT 4:15 PM

1 Reply

Tiny
JDL
  • EXPERT
  • 16,307 POSTS

Besides the temp gage, any signs of overheating? Is the coolant reservoir over-flowing? You can see coolant flow through the radiator? You may need to flush the cooling system? Could be air in the system? Combustion gases in the coolant?

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Friday, October 19th, 2012 AT 5:18 PM

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