GMC Savana 2500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your GMC Savana 2500
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GMC Savana 2500 ProblemsReduced Power and Check Engine Light
The 2008-2015 GMC Savana 2500 uses a throttle position sensor (TPS) which commonly fails and causes:
- Check engine light illumination
- Reduced Power message
- OBD trouble code P2135
This issue is related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS.
To correct this issue, the wiring harness, connector, and throttle position sensor must be inspected, tested, and/or replaced. The most common cause is a faulty TPS.
The headlight switch used on the GMC Savana 2500 is known to fail through normal operation. Since the headlight switch is also integrated into the interior lights, a malfunctioning switch can cause issues with interior lights as well.
- Symptoms of a failed headlight switch include:
- Headlights and taillights failing to turn on or off
- Interior lights flicker, or fail to turn on or off
- Gauge cluster lighting off or flickering with headlights on
- Parking light malfunctions
This issue is well known with General Motors Trucks and SUVs, and is solved by testing and, if needed, replacing the headlight/dimmer switch. Bad grounding wires at the tail-lights, and dirty/corroded tow package wires can also lead to some of these issues.
The fuel pump may fail causing the engine to stall and not restart.
GMC Savana 2500 QuestionsWill start/not start sporadically. When it doesn't start, doesn't turn over (1 answer)
Battery has been replaced but didn't fix the issue. The problem seems to occur more often when trying to start the van after it has recently been run. (Stalled at the gas pump, in a parking lot after getting groceries.)
When it doesn't start and the key is turned, the van has full po...
Replaced torque converter last week everything good til I put it in reverse then instantly the motor shuts off.
GMC Savana 2500 RecallsVehicle Equipped With Improper Inside And Outside Mirror Combinations
The vehicles were built with an improper mirror combination of no inside rear view mirror and a right hand convex mirror. Vehicles require both side mirrors being flat if no inside mirror is provided. Dealers will install a right hand flat rear view mirror free of charge to resolve the concern.
The chassis electrical module can short due to internal contamination. This can result in the vehicle stalling. Dealers will replace the chassis electronic module free of charge to resolve the concern.
Certain vehicles equipped to run on compressed natural gas are being recalled because the high pressure natural gas regulator could develop a leak, increasing the risk of a fire or explosion. Dealers will replace the natural gas regulator to correct this concern.