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fairly significant
Typical Repair Cost:
Average Mileage:
151,000 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (2 reports)
1997 Chevrolet Blazer AC / heater problems

AC / heater problem

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1997 Chevrolet Blazer Owner Comments

problem #2

Aug 012011


  • Automatic transmission
  • 117,000 miles


The AC and Heat come out of the defroster and lower vents. The Chevy dealer here in Chantilly, VA fixed the vacuum leaks, and a 4wd actuator switch on the front left. They claim that the bad switched allowed fluid to be drawn up into the vacuum system which caused a diaphragm under the dash to deflate, which prevents air from coming out of the front dash vents. They claim a repair would be $1200 because the dash would have to be taken out to get to the part.

Does this make sense? The problem first started with the air switching to the defrost when the truck was under acceleration, returning to the dash vents when letting off the gas.

- , South Riding, VA, USA

problem #1

Aug 182006

(reported on)

Blazer LS

  • 185,000 miles

someone please tell me if the problem is a vacuum line or a fuse or what!!!!!!!!!!!!!!!!!!!!!!!

- , Greenville, IN, USA

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