2005 GMC Savana 2500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 GMC Savana 2500

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2005 GMC Savana 2500 Problems

Instrument Panel Lights Flickering and Exterior Lights Intermittent

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. 

One or More Rear Lights May Not Work

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.

Erratic Fuel Gauge Operation

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

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2005 GMC Savana 2500 Questions

Overheats, not hot. Cold to peg gauge in 5 min. New pump, stat, sensor. Ifr <160 (1 answer)

Goes from ambient (85) to peg gauge (230+) in < 5 min idling. Infrared thermometer reads under 160 on heads (header manifolds barely 210). Replaced pump, stat, hoses, belts and temp switch (85,000 mi) for small leak at pump rotor seal which precipitated overheating trouble. Engine shuts off wh...

Savana Van 2007 (1 answer)

I own a GM Van 2007 and the battery is draining overnight, the battery is brand new, the alternator is new. The evap unit on air conditioning unit freezes is freezing up within 10 minutes of driving and the air conditioning is not being operated. In addition, the heater goes out within 10 minutes...

How much should it cost to replace a sticking lifter? (1 answer)

I only needed a lifter repaired it was making a ticking noise and was charged for SEVERAL other things I NEVER was talked to about or gave the okay to fix all I needed was a lifter or two replaced so I want to know how much that should have costed me

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