Tune Up
I have not done a DIY tune-up since the days of points and condensors. I have a 2002 Chevy Silverado 6 liter with 110,000 miles and believe it time. Besides replacing the spark plugs, checking t...
Forum Discussion
When you go to buy plug wires for that, be aware there are two different sets for the 6.0. GM used round or square coils (two different coil manufacturers) for a few years and the plug wire lengths are different. If you have the round coils (plug wire connector on the bottom of the coil) you need the shorter wires (AC Delco 9748GG). If you have the square coils with the plug wire connector on the side of the coil, you need the longer wires 9748HH. The HH wires are about 1.5 inches longer for than the GG's. You cannot make the shorter wires reach a square coil. Amazon had the best price on the wires when I bought them.
