1999 Chevrolet Blazer Repair Question
Topics covered: Heater, Hood, Intake manifold.
Mileage: 125,000 miles.
Mileage: 125,000 miles.
Asked on February 1, 2013
Chevrolet Blazer Heater Problem
The heater switch will not go off vent to defog or heater. whats the problem?
Asked by (pending member)Answer
Replied on February 1, 2013
You can turn it but it won't change. Can you hear a hissing noise in the car on the right side or under the hood. It sounds like you may have a broken vacuum line., They generally break near the intake manifold due to being exposed to heat and they are just plastic
