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minkel2004

minkel2004 1/19/2013

1994 Buick Roadmaster Base 8 Cyl 5.7L

Engine

heater blows no hot air

Flushed cooling system, noticed hoses burned, contraption near drivers side manifold has a valve of some sort coming out of the drivers side manifold. That has a metal tube which then attaches to rubber like hose which then attaches to unit which then leads I believe, back to engine block. Rubber type hoses melted and removed. Engine misses at low speed before and after placing transmission in drive. Vacuum leaks there causing ruff idle? Perhaps has something to do with why heater does not blow hot air? Maybe a valve that needs to open to let hot water flow into the heating system? confused, please help

1 Answer


CVO

CVO 1/19/2013

See this Heater Control Valve
For your 1994 Buick Roadmaster 5.7L SFI OHV 8cyl

http://www.autozone.com/.../N-j0vk1Z91sh0

It's a vacuum operated heater valve.

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