2008 GMC Savana 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 GMC Savana 1500
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2008 GMC Savana 1500 ProblemsReduced Power and Check Engine Light
The 2008-2014 GMC Savana 1500 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 fuel pump may fail causing the engine to stall and not restart.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
2008 GMC Savana 1500 Questionswhat is the book repair time to replace the thermosat (2 answers)
I have been charged for two thermostat, one oil O-ring, $20.00 worth of dexcool and 6 hours to complete the job. Does this sound correct - I am told it is only a 2 hours job
What does code 449 mean?
2008 GMC Savana 1500 RecallsFrame Rail May Be Wider Than Specification, Potentially Causing a Fuel Leak
The frame rail of the vehicle may be wider than intended. If this is the case, the fuel tank may rub on the frame rail and eventually may leak. Leaking fuel presents a fire hazard. Dealers will inspect the vehicle and modify the frame rail if required. The GM recall number is 080205. This recall began on July 30, 2008.
The transfer case drive chain may fail and cause the AWD system to fail. Chain failure will also prevent the vehicle from being secure in "Park." Dealers will inspect the transfer case and replace it if necessary. The GM recall number is N080244. This recall began on August 15, 2008.