• Tiny
  • CDrengenberg
  • 1995 Chevrolet Caprice
  • V8
  • 2WD
  • automatic
  • 213,000 miles

My Chevrolet Caprice Classic 4.3L is trying to overheat, the temp. Climbs after warm-up. I already replaced the Water Pump, could it be a faulty thermostat or ECT sensor?
When I pulled out the ECT sensor out of the old water pump, I cleaned it with a wire brush and it looked okay. Also, I put a new thermostat gasket on. Maybe the thermostat got ruined from excessive heat? When I added water to the system after replacing the water pump, I didn't bleed it, could there be air in the system causing slight temp. Climbing?

Tuesday, January 11th, 2011 AT 5:46 PM

1 Answer

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,310 posts

The first thing I would have done would have been the thermostat. Replace (or remove and test it. Direction on homepage / DIY section). As far as bleeding the system, there could be an air lock. You should bleed it.

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Tuesday, January 18th, 2011 AT 10:13 PM

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