Jay Bird
Registered Member
When either is being used, the air comes out of defrost vents, dash vents and floor vent. What's wrong and how do I fix it? It's happening on my 89 blazer.
CK5
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Trouble with Heat and A/C
- Thread starter Jay Bird
- Start date
Muddytazz
1 ton status
Sounds like the divertor door inside the heater box is stuck.
Mudstud
1/2 ton status
The flaps are operated by vaccuum. In the engine bay look at the vaccuum lines coming off the intake going to a ball on the firewall (Pass side). Inspect this line (any any others in the vacinity) for cracks- or just replace and see if that does it. Holla back.
