why my cougar wont blow hot heat until i put rpm up to 2 then i get heat go back to idle and it get cold again

1995 MERCURY COUGAR
131,000 MILES
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DANGERWILL
  • MEMBER
  • 1 POST
I start the car let it warm up and turn on heat and get cold air until i press the gas rpm go to 2 and i get good heat let off gas gradually go cold air car dont over heat i let it sit and idle for 1/2 hour do over heat
Feb 18, 2012 at 4:31 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Check the thermostat and water pump impeller
Feb 18, 2012 at 4:33 PM
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