When I start the car in the morning and the engine is cold the motor accelerates up and down.

1993 ACURA LEGEND
16,700 MILES
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MARIUSTERMURE
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  • 1 POST
At the same time after the engine worms in the morning and I drive it, the water thermometer goes from normal to high then back down. It does it a few times for about 30 min. Lastly, when I put the heater on hot air, out of no ware it get cold for a few minutes and then back to normal(hot).
Nov 21, 2011 at 11:44 PM
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ASEMASTER6371
  • ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
check the coolant level. if it is low, cold idle surging is common with the honda motors.

Roy
Nov 22, 2011 at 12:09 AM
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