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Spark Plug wire sometimes pops off . . .

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Old Jan 8, 2002 | 01:09 PM
  #1  
soulbounder's Avatar
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From: Tomball, TX
Car: 89 TTA
Engine: Turbo 3.8
Transmission: 200R4
Spark Plug wire sometimes pops off . . .

It's happened to me twice while I was driving. I made a left turn at full lock. Wasn't accelerating fast or anything. They are stock length and are not short at all. It's the rear most driver's side only. Any ideas? I thought about maybe the steering column but have checked it over real well and it doesn't look like it would even come close to touching.
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Old Jan 8, 2002 | 02:34 PM
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firbird's Avatar
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From: NW FL
are they accel?? mine easly fall off, and i have heard many people have the same complaint, how hard is it too pull off when car is off? and might just wanna try to push the wire up in the boot more, i had to do that a few times.
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Old Jan 8, 2002 | 02:39 PM
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Tas
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Get MSD wires. They have a snap type of ring that grabs the plug. You can hear them click when you put them on.
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Old Jan 8, 2002 | 03:34 PM
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From: Davison / Troy ,Michigan
Car: 1991 Pontiac Firebird
Engine: 3.8
Transmission: 700r4
Axle/Gears: Dana 60
Tas is right. The MSD's have a clicking sound that tells u if it has grabbed the plug or not. I love them wires.
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Old Jan 8, 2002 | 03:54 PM
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From: jacksonville
take the wire off, then use some plyers and pinch the boot, you want to squeeze the metal contact inside to have a smaller radius so it will fit tightly on the end of the plug.
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Old Jan 8, 2002 | 04:12 PM
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From: Michigan
I had to cut down the lenght of the boots on the Accel 8mm wires I bought. They were waaaaayyyy too long. Why in the hell do they do that? It obvioulsy is too long for the terminals to contact each other nicely.
bsa
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Old Jan 8, 2002 | 07:08 PM
  #7  
soulbounder's Avatar
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From: Tomball, TX
Car: 89 TTA
Engine: Turbo 3.8
Transmission: 200R4
They are plain replacement AC Delco or Borg Warner wires. You can feel them click or lock on to the plug too. I can go outside right now and tug on it and it's snug. Same as it was before it popped off. I dunno. Maybe there're possessed.
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Old Jan 8, 2002 | 09:58 PM
  #8  
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
Originally posted by dtpmike
take the wire off, then use some plyers and pinch the boot, you want to squeeze the metal contact inside to have a smaller radius so it will fit tightly on the end of the plug.
Great tip. That's what I was gonna tell him.

Just to add to the tip; If you add a little dielectric grease to the plug, then squeeze the boot with your fingers (or plyers if you can get them in there ) while you are sliding the boot over the plug, it will 'burp' the boot. This helps remove any air that is in between the boot and the plug.

If there is a slight amount of pressure from and air pocket in there (due to any air trapped in when you're pushing the boot on), and it heats up from engine heat, then it'll cause the boot to pop off, similar to a cork on a champagne bottle.

G/L

AJ
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Old Jan 8, 2002 | 10:06 PM
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Tas
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I shoot some WD-40 in there. Helps it go one easy and will evaporate later
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