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91 Z34 - stalling problem


Teleslinger

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Hi guys and gals,

 

I just put new intake and plenum gaskets in my 3.4. Replaced all of the vacuum lines. It idles and runs much better now, however, if I turn on the heater while the car is just sitting at idle, the car immediately stalls. Anything in the Heater/AC system vacuum operated? I don't think it's electrical 'cause the blower motor seems to work just fine at all speeds. My '93 Astro van uses vacuum to operate the heater/defroster door. Does the Lumina have something similar? BTW it switches from heat to defrost Ok too. Help!

 

Thanx,

Teleslinger

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Yea, the controler for the Hot/Cold control is vacuum controled. So, can you swithch where the air comes out from, but when you move the controlfrom cold to Hot, it' will stall?? Is that what happens?

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