ENGINE DOES NOT WARM UP AT IDLE

  • Tiny
  • Anonymous
  • 1995 BUICK
  • 150 MILES

Engine does not warm up at idle.
2.2L engine does not warm up at idle rpm, 165 F. Engine warms up at 1500 plus rpm, 195-215 F. Can watch temp fluctuate as thermostat opens. Car runs good. Car runs good has heat at highway speed.
replaced thermostat with oem gm. Coolant system bled of air. Heats ok in cabin. Temp drop across heater core 10-15 F.
no service lights on.

Saturday, January 5th, 2013 AT 4:03 AM

1 Reply

  • Tiny
  • DrCranknWrench
  • EXPERT
  • 3,457 POSTS

You might want to replace the thermostat as it sounds like it is failing at the different temperatures. It should stay closed until it reaches operating temperature.

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Saturday, January 5th, 2013 AT 5:36 AM

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