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Old 11-16-2011, 07:35 PM   #1
Scottsdale Doc
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Plug wires & plugs

Today I pulled a plug wire off my 85 scottsdale ( 350 Eng) and it made no difference in the running of it. I continued removing one by one and 4 of the 8 made no difference in the way the engine run. I am confused.
The dist is electronic and is putting out based on the spark from the wire to the cap. Has anyone had this happen to them & if so what was the fix.

The engine does not run that bad but I am confused as to why removal of a plug wire does not make a difference when it is removed.
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Old 11-17-2011, 03:31 AM   #2
INSIDIOUS '86
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Re: Plug wires & plugs

you ran your truck on four cylinders?
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Old 11-17-2011, 03:39 AM   #3
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Re: Plug wires & plugs

I accidently wired 2 of my cylinders out of the firing order and noticed that it would idle fine, but when I'd drive it (put the engine under load) it'd start to backfire and miss.
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Old 11-17-2011, 06:10 AM   #4
lurch115
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Re: Plug wires & plugs

had a friend of mine help me do a tuneup once and he accidentally switched the center 2 plug wires on the passanger side of the motor around. probably never would have caught it but everyonce in a while sitting at a light idling it would let out a light pop and die.
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Old 11-17-2011, 01:57 PM   #5
Tucson38
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Re: Plug wires & plugs

I'm sure you'd notice when you put the engine under load. I'm surprised you could pull off 4 plug wires and it ran for you.
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Old 11-17-2011, 02:43 PM   #6
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Re: Plug wires & plugs

Sorry for confusion, I pulled them off one at a time and put them back.
I've taken truck into pep-boys for diagnostic test.
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