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Greg A
Greg A, Master Troubleshooter
Category: Chevy
Satisfied Customers: 8254
Experience:  Working with Electronics & Cars for 25+ Years
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Need to know firing order for 1994 blazer tahoe 4.

Customer Question

need to know firing order for 1994 blazer tahoe 4.3 liter vortec and which side #1 piston is on
Submitted: 8 years ago.
Category: Chevy
Expert:  Greg A replied 8 years ago.

Hi Chad,

 

Here are a couple of diagrams for you.

 

 

graphic

All 1994 4.3L engines and 1995 4.3L VIN Z engines

Firing order: 1-6-5-4-3-2 Distributor rotation: clockwise

 

 

graphic

1995 VIN X and all 1996-99 4.3L engines-HVS distributor

Firing order: 1-6-5-4-3-2 Distributor rotation: clockwise

 

I believe the first diagram is for your vehicle, but I gave you the second on just in case some upgrades have been done.

 

Please let me know if you have more questions.

 

Take Care, Greg A.

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