2007 GMC Savana 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2007 GMC Savana 1500
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2007 GMC Savana 1500 ProblemsTail Light Wiring in Cargo Area May be Damaged
The tail light wiring harness in the cargo area is not protected very well. As a result it may become damaged due to normal wear a tear. This damage can causing some or all of the rear lights to stop working.
One or both secondary air injection check valves may become restricted causing poor air flow resulting in illumination of the Check Engine Light. It is often recommend to replace both check valves even if a fault code is set for only one bank of cylinders. Replacing only one valve may result in a return trip to the repair shop.
The fuel pump may fail causing the engine to stall and not restart.