air compressor won't turn on - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Appearance > Interior

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Old 11-28-2009, 08:35 PM
joe999wil joe999wil is offline
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2004 GMC Envoy SLT XL
Forest Green Metallic 4.2L I6 4X4
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Posts: 12
air compressor won't turn on

Hi I have a pump inside my 2004 envoy for inflating tires balls,,, it won't turn on or light up. Any ideas..

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Old 11-28-2009, 08:54 PM
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the roadie the roadie is offline
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2004 GMC Envoy SLT "Roadiemobile"
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Does it properly keep the air ride suspension at the right height?

Do you have a meter and can check voltages at the back side of the switch/light panel? (item 3 in the drawing)

Might just be corrosion on the connector where the switch/light panel plugs into the compressor assembly. Can you dig down under there and look for a 3-wire connector? It's on harness #17.
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Old 11-28-2009, 11:42 PM
n0kfb n0kfb is offline
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Search is your friend

See the following thread:

I posted many technical and troubleshooting documents related to the air suspension system there, including wiring diagrams for the compressor. Please read them! If you have any questions after reading the files in the previous thread, please ask!

Once you solve the problem, I'd be curious what you found.

Good luck, and keep us posted!

-- Dan Meyer
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