Need a schematic diagram for spark plug wiring showing distributer to plug mechanic removed mine without knowing what went where

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go to the library they will have a book for your truck that will show you the plug wire location for the distributor and distributor rotation and firing order and cylinder position on the engine. is this is all you need.

For this you have to determine when the #1 cylinder is at TDC (Top Dead Center) - when it would be firing. Take the distributor cap off and look at the rotor - it would be pointing at the #1 spark plug wire on the distributor. The wires would be connected it order around the distributor cap starting at 1. The sequence is 1-8-4-3-6-5-7-2 in a clockwise fashion.

Hi: To Install the Distributor Correctly, 1st thing to do is Remove your #1 Spark Plug assuming it will turn over have someone Turn the Key Off and On in Short Intervals.Either put a Compression Gauge in the #1 Spark Plug HoleOr the Old Fashion Way Works as well just put your Finger in the #1 Plug Hole.As your Helper Cranks the Engine On -Off On -Off.Not A Continuous Crank.When You Feel Air Pressure or See gauge Come up.TYhats when your Engine is a The compression Stroke.Now you Can Drop the New Distributor in its Hole.NOTE: You'll need a Spark Plug and Timing Diagram to See the Position your Distributor ROTOR Line it up to where the Diagram Shows your #1 Spark Plug Wire Will go in the Distributor Cap.If the Distributor Rotor is Not n That Position Your goning to Get Either Back Firing engine May Not Even Stsrt, To This Is Crucial. After The Know that you have The Distributor Droppped The Right position you'll need to Put Gap your Plugs at the Correct Specs, With All Plugs in Now You'll need to Put New Plug Wires on .And They MUST be in the correct order.Sitting inside your Vehicle #1 Plug is the Front Plug on the Drivers Side Next is #3 plug Next is #5 and Your Back Plug is Number 7,On the other side Passenger Front Plug is #2 next #4 Next is #6 and the Back is #8 Assuming you know have your Distributor Dropped in The Proper Position, Put the #1 Spark Plug Wire on the Front Spark Plug (Drivers Side) The Spark Plug Firing Order in Your Engine is 1-8-4-3-6-5-7-2 Clockwise So the Next hole after you have #1 Plug and Wire on And Distributor In Correct Position on COMPRESSION STOKE, Going Clockwise you next wire will be your #8 Position in The Cap And it wil go to the Back Spark Plug on The Rear Spark Plug on Passenger Side. NOTE: Drivers Side Spark Plugs on the Drivers Side Front to Back are Your Odd Numbers 1-3-5-7 Pasenger Side is Your Even Numbers From The Front is #2-4-6-8 Is The Rear PLug .

Heres a Diagram of your Spark plug Positions

Front of Engine
1 2
3 4
5 6
7 8

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From d_hubbs

1988 Cadillac Seville 4.5 liter V-8 VIN "5"



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Hope helped with this (remember rated this help) Good luck.

i didnt fix it on my own couldnt get the diagram from you your site only gave me a ad for hp printers
i had to take it to a garage to take care of it i dont know if i hit the wrong link let me know

go to this link for diagram. one is white spot on distributor cap.

http://autorepair.about.com/library/firing_orders/bl-fo-9144.htm

get another electrician, he doesn't know what he is doing, this is not easy to figure out without diagrams of the connector that shows exact wire colors and where they go or went in prev installation..