1997 Buick Lesabre

1997 BUICK LESABRE
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RANGERFORD06
  • MEMBER
  • 1 POST
Heater problem
1997 Buick Lesabre 78,000 miles

sometimes no heat, radator doesn't leak.
water seems to just evaporate.
Mar 25, 2009 at 9:20 AM
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ZACKMAN
  • ✓Experienced Mechanic
  • 4,202 POSTS
Have you been refilling with water (straight water) or a mixture of 50/50 coolant/water? If you just add water, it will evaporate. Try refilling with the correct mixture.

If you have been using the correct mixture, check your radiator cap. If the seal is bad, your coolant mixture will evaporate.
Mar 25, 2009 at 3:39 PM
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