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A/C problem

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Old Jul 18, 2009 | 06:44 PM
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Default A/C problem

i turned on my a/c today and the air comes out of upper vent and lower vents but on the pictured vents no air comes out , nothing at all what can this be due to??
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Old Jul 18, 2009 | 07:16 PM
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bump
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Old Jul 18, 2009 | 07:19 PM
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There's a plastic vacuum check valve on the passenger side of the engine under the fuel rail cover - have a look at that first. If that's the culprit, your cruise control probably isn't working, either, but you should be able to get a new one for $5 or less at any auto parts store.

If you have a '96, a common problem is that the soft rubber nipples on the HVAC programmer can collapse. Here's a thread about it:

http://forums.corvetteforum.com/c4-t...l-problem.html
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Old Jul 18, 2009 | 07:24 PM
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Originally Posted by pianoguy
There's a plastic vacuum check valve on the passenger side of the engine under the fuel rail cover - have a look at that first. If that's the culprit, your cruise control probably isn't working, either, but you should be able to get a new one for $5 or less at any auto parts store.

If you have a '96, a common problem is that the soft rubber nipples on the HVAC programmer can collapse. Here's a thread about it:

http://forums.corvetteforum.com/c4-t...l-problem.html
thanks alot ill check it out
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Old Jul 18, 2009 | 07:26 PM
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Good luck!

BTW, this is the check valve you're looking for:

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Old Jul 18, 2009 | 07:34 PM
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Originally Posted by pianoguy
Good luck!

BTW, this is the check valve you're looking for:

EXACTLY what was wrong with it! thanks alot man i really appreciate it problem fixed
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Old Jul 18, 2009 | 08:23 PM
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Old Jul 18, 2009 | 08:43 PM
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Excellent!
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