Question about 2000 Chevrolet Lumina
2000 chevy lumina, upon acceleration the a/c blows somewhere but not out the vents, you can hear it blowing. When you take your foot off the gas the a/c will barely blow out the vents.
The vent is controlled by vacuum. Check the condition of the vacuum hose associated with the vent control. What is happening is when you decelerate, the intake manifold vacuum increases, and a diaphram is slightly pulled giving you air in the vent but very little. In normal condition the diaphram wont even pull. Solution is check for a vacuum leak in the vent control trace it coming from the intake manifold.
Posted on Jun 30, 2009
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Posted on Jan 02, 2017
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