Firing order for 1995 Chevy Astro 4.3L, From front of engine driver's (left) side No.1, to right front, No.2. left side middle cyl. No.3. Right side mid. cyl. No.4. Rear cyl. left side, No.5. Rear rihgt No.6. On the Distributer cap from No.1 (should be marked) plug tower order is 1,6,5,4,3,2.
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