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What is the firing order of a 1994 Chevy cheyene with 7.4 liter 8 cylinder and which 1 on distibuter cap?

The firing order for a 1994 Chevy Cheyenne with a 7.4L (454 cubic inch) V8 engine is 1-8-7-2-6-5-4-3.

There is no distributor cap on a 1994 7.4L Chevy Cheyenne. These engines used a sequential fuel injection system with individual coil packs, not a distributor. Therefore, the numbering on the coil packs or their location on the engine would correspond to the firing order, not a distributor cap.