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Need fireing order for 1998 gmc 2500 pickup, 454 engine
Mis fireing in my 1998 gmc , 2500 pickup, eng. 454. replaced my plug wires and got them mixed, now I need the fireing order to get rid of the miss. THANKS FARRIS
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? 10:56
https://www.youtube.com/watch?v=y5NuS-G-cKI
Dec 5, 2013 - Uploaded by Ghetto Wagon
I thought the parts when the engine was running would come out better, but its just too loud. ... How to set ...
? 3:14
https://www.youtube.com/watch?v=mK5N5mCmyok
Jul 28, 2013 - Uploaded by sprek2
I had to time a distibutor on a 1995 GMC Sierra V8 5.7L and was having trouble finding the wire that you have ...
At this site you can find the firing orders for Chevrolet engines. ... 1987-1989 ... 283, 302, 307, 350, 396, 400 and 454 Engines Firing Order, 307 Engine Firing ...Missing: degrees
images for Firing order diagram and timing degrees
Here is the firing order diagram for the 5.0 liter (305), 5.7 liter (350) and the 7.4 liter (454) V-8 engines (note position of locking latches/screws between the 3 and 6 and the 1 and 2 terminals on the distributor cap). Let me know if you need the 4.3 liter V-6 engine diagram (hopefully not in a 2500 series truck) or if you require any further assistance.
Firing OrdersNOTE: To avoid confusion, remove and tag the spark plug wires one at a time, for replacement.
If a distributor is not keyed for installation with only one orientation, it could have been removed and installed improperly and then rewired. The new wiring arrangement would maintain the correct firing order, but could change the relative placement of the plug towers in relation to the engine. For this reason it is imperative that you label all wires before disconnecting any of them. Also, before removal, compare the current wiring with the accompanying illustrations. If the current wiring does not match, make notes of the current plug wire locations and orientation of the distributor cap. 3.9L Engine
most all v8's have the same firing order which is 1,8,4,3,6,5,7,2. sparkplug gap seems fine. with the engine off, bend the sparkplug wires between your fingers, if small cracks appear then replace them. number one sparkplug is located at the front driver side of the engine, front to back on this side are cylinders 2,4,6, and 8 respectively. turn the engine to the compression stroke on number one, pull the cap, the rotor points where number one will be.
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