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.
Resources for the Repair and Maintenance of your 2005 GMC Savana 1500
2005 GMC Savana 1500
2005 GMC Savana 1500 Problems
Various electrical components under the front carpet/rubber mat may become damaged if excess water is used to clean the rear cargo area.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Our technicians recommend flushing the brake fluid every 60,000 miles. Brake fluid that is dirty may cause problems in the brake system.
2005 GMC Savana 1500 Questions and Answers
I have a full size van with 4.3 that will not fire up i have had the fuil pump ,Dis cap Roter , ecm and still not but i will run if i squirt starting fluid in the intake
looking for replacement harness, gm has none available. any else have this trouble?
2005 GMC Savana 1500 Reviews
Bought this van new. very few complaints. used the cigarette lighter and had a major short in the wiring harness. only 77k miles. gm does not stock replacement harnesses. I found a repair shop online that fixes these harnesses and when I asked about repair they said "cigarette lighter? we've been seeing a lot of those". gm denies knowledge of this problem. anyone else have this trouble? email@example.com
I drove a GMC Savana 1500 cargo van for almost 3 years around the San Francisco Bay Area as well cities like Santa Rosa, Modesto and Davis. As a cargo vehicle the performance was amazing, capable to carry a lot of weight and runs smoothly with excellent brakes response. In the outside is a tough car. In the inside the seats arm rest are really weak, but it has a strong A/C. Without any mayor mechanical trouble other than replacing a couple brake light bulbs and a few fuses, I would say that the overall weakness is the low gasoline mileage.