John ... 1/31/2012
2007 GMC Yukon XL 2500 SLE 8 Cyl 6.0L
Steering & Suspension
"service Suspension light on" Delaer diagnosed " exhaust valve shorted in ALC compressor" and wants $600+ to rep[air ???
Try to go to a few service shops to have your vehicle check. Some shops offers free check up. Try the AutomD Negotiator ( http://www.automd.com/negotiator/) feature on this site it is free. They will call local shops for the repair that you needed and send the multiple quotes from your local shops. So you can compare job prices within your area.