What is the firing order for the spark plugs...

Asked by Sep 25, 2015 at 09:37 AM about the 1997 Chevrolet C/K 1500

Question type: General

truck is backfiring apon giving the truck gas.

9 Answers

click to size up

33 people found this helpful.

or.... same anyway

18 people found this helpful.

Check the ignition timing

9 people found this helpful.
135,715

http://www.cargurus.com/Cars/Discussion-t27804_ds678938

1 people found this helpful.
995

18436572 , passenger side from front to rear 2468, drivers side1357. note this motor has known dist. problems. do you know if you have a cpi injector system , some call it a spider . these are also known problems. has anyone recently mest with plugs ,wires , dist cap or rotor? be glad to help just need more info

3 people found this helpful.
28,185

The vortec motor dist cap isn't lined up with the traditional 18436572. The order is numbered on the cap. It is the 2nd picture posted by fordnut. You can't check ingition timing with these engines unless you have a scan tool that reads camshaft retard.

4 people found this helpful.
995

yes sir the firing order is configured differnt on the vortec but the order in witch it fires is the same, and like i posted the dist is a known problem ,the gear that meshes with the cam , cam position sensor magnetic field . those dist caps are well known for carbon tracking and cross firing . note most after market caps dont work well. the scan tool is nessesary cam retard should read 0 + or - 2 deg. all scanners with bydirectional function will work

3 people found this helpful.

Thank you that helped.

On my truck I have a 96 4 x 4 GMC and when I start off he kind of hesitated and backfires

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