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i need th firing order for a 90 s15 gmc sierra 2.5liter 4 cyl?

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Stan

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my stupid ass dad took all the plugs out and didnt lable um and i have no clue which one goes where now. do you?
 
Stan said:
my stupid ass dad took all the plugs out and didnt lable um and i have no clue which one goes where now. do you?
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Your firing order is 1-3-4-2
The cylinder # is 1-2-3-4 from radiator to fire wall
The distributor # from the 1 O'clock position is 1 then going clock wise is 3, 4, and then 2 at the 10 O'clock.

Hope this helps and keep us posted. ;)
 

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