Question about 1994 Chevrolet C2500
Had the distributor changed and now it is back firing I have new plugs and wire but I want to check the timing too
When did it start back firing? The reason for the question is if it has been back firing since you put the new dist. in it maybe one tooth off on the firing order. To check and see if this is the case rotate the engine to TDC on the timing tab ( which should put #1 piston at the top of cylinder) , remove the dist. cap and see if the rotor is pointing to number ! plug wire. If it is not pull the dist. and reset it till the rotor points to #1 plug. Hope this helps.
Posted on May 03, 2015
I would recheck the firing order for the plugs as that will be the cause of the back firing
the timing will be 12 degrees advanced
Posted on May 02, 2015
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Posted on Jan 02, 2017
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