new here, 4WD blinking

Nov 3, 2008 | 07:51 AM

#21

abadinalbany

Thread Starter

Starting Member

Joined: Oct 2008

Posts: 117

From: Albany, NY

RE: new here, 4WD blinking

So apparently GM calls this a vacuum "valve." GMPN 15165891.

4WD is back in business, thanks for all your help!

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