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2004 Buick Lesabre Heating problem

Tiny
BUFFY45
  • MEMBER
  • 2004 BUICK LESABRE
  • 175,000 MILES
Hi! For the past few days I've noticed that after my car has warmed up and is blowing warm air, it will all of a sudden start blowing cold air. This will usually happen after driving the car for about 15-20 minutes.
Thursday, December 12th, 2013 AT 7:04 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
First, make sure the coolant is full. If it is, check this for me. With the engine warm and the heater on high, check to see if both heater core hoses are hot. Do this when it is blowing cold air and let me know what you find.
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Monday, March 22nd, 2021 AT 12:54 PM

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