Questions & Answers for: GMC back firing

...Firing Order: 1-3-4-2 Cylinders: (back of engine) .........4 .........3 .........2 .........1 (front of engine) Distributor: ...(back) .....(+)-screw 2............1 4............3 .....(+)-screw ...

...Firing Order: 1-6-5-4-3-2 Cylinders: (back of engine) | 6 |---------| 5 | | 4 |---------| 3 | | 2 |---------| 1 | (front of engine) Distributor: ...(back) (+)..4...3 .5...........2 ...

...back through the throttle body and the exhaust. I also need to know the timing. I rebuilt the thottle body now they are pulsing right right 153624 firing order ,but i would beed to know about engine ...

engine is back firing (4.3L or 5.0L or 5.7L) if the engine is 5.7L,,check first the timing and the firing order..18436572...thats the firing order

Firing Order: 1-6-5-4-3-2 Cylinders: ......(back)........ '...6...........5...' '...4...........3...' '...2...........1...' .......(front) Distributor: ......(back) (+) - screw ..........4 ...........

truck Here is the diagram with the firing order and cylinder layout. Firing order is 1-6-5-4-3-2.Cylinders 1-3-5 are on the DRIVERS side front to back and 2-4-6 are on the PASSENGER side front to back

...number 3 plug is the third one back from the front of the engine. They are numbered in order 1,2,3,4,5,6 front to back, this is the cylinder numbers not the firing order. Firing order is 1-5-3-6-2-4

i have a 1992 gmc g2500 5.7L every time you start to go it bogs and back fires threw throttle body ive changed plugs, cap rotar, muffler, vacum hoses your timeng is off this can only be reset by a ...

back on, and it started and ran for awhile. tried to start and no fire replace the ignition module or pickup coil located under the distributor cap ignition modules work when cold and will stop firing

Can a large enough backfire threw the tailpipe throw off your timing 1993 gmc vandura 2500 5.7 no but the back fire could be caused by a failed timing belt or chain a back fire is just exploding fuel ...