edward_garcia_69

iTrader: (6)

i have a 1997 z28 camaro. here in texas it got cold a few days ago and i put the heater on to the floor vents. and now the weather is getting warmer. so i put the ac on to the top vents and the cold air is only blowing on the bottom vents. what is causing this problem from the top vents not blowing on top vents. please someone help out.

LS6427

iTrader: (2)

Could be a problem with your "T" valve vacuum valve. May be cracked or leaking or maybe one of the little hoses popped off. Its over by the PCM. Black plastic and pretty small.

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edward_garcia_69

iTrader: (6)

hey dude, i opened the hood and found the T valve that you were talking about and it was disconnected. as soon as i connected the hose the a/c top vents started to work and blow cold *** air. thanks every much !!!!!!!
for the information.
later eddie

quews6lime

iTrader: (22)

check the pvc on top of the black box

edward_garcia_69

iTrader: (6)

the problem was fix by reconnecting the small vacucum holes by the t valve.. its right by the pcm (computer).

LS6427

iTrader: (2)

Thats usually the culprit..............

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