What is the firing order for a 1994 gmc 3500 1 ton?
The firing order for a 1994 GMC 3500 1-ton truck depends entirely on the engine it has. GMC 3500s from that year could have several different engines. You need to specify the engine displacement (e.g., 5.7L, 6.5L, 7.4L) or the engine code (found on a sticker under the hood or on the engine itself) to get the correct firing order.