LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Car doesn't like to start after it rains

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Old May 1, 2003 | 12:12 PM
  #16  
Gripenfelter's Avatar
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From: Winnipeg, Manitoba, Canada
If it was the opti it would do it all the time.

The opti doesn't repair itself.

If its soaked, its toast.

So I don't think you would have to worry about that.
Old May 1, 2003 | 12:33 PM
  #17  
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From: Silicon Valley, CA
I just had the same prolem yesterday, probably due to the same storm. My opti, wires, and spark plugs are new, the only thing that I didn't change and it has 100K on it is the ignition coil.
Old May 1, 2003 | 12:35 PM
  #18  
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From: Battle Creek, MI
Originally posted by tanker
I just had the same prolem yesterday, probably due to the same storm. My opti, wires, and spark plugs are new, the only thing that I didn't change and it has 100K on it is the ignition coil.
sure are a lot of you boys in DeKalb... 69Zl1, Madwolf, you... All college students I presume?
Old May 1, 2003 | 12:44 PM
  #19  
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Originally posted by Timberwolf
sure are a lot of you boys in DeKalb... 69Zl1, Madwolf, you... All college students I presume?
All of us are students with similar traits-wanting faster cars and being broke Police seems to pick on all faster looking cars here in Dekalb.
Old May 1, 2003 | 01:38 PM
  #20  
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Originally posted by tanker
I just had the same prolem yesterday, probably due to the same storm. My opti, wires, and spark plugs are new, the only thing that I didn't change and it has 100K on it is the ignition coil.
Heh, my Accel supercoil only has about 12k miles on it along with the coil wire.
Old May 1, 2003 | 01:46 PM
  #21  
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The ignition primary and secondary wires are succeptable to moisture and corrosion, especially on the LT1. The aluminum heads, water pump and timing cover tend to condense moisture when the car sits overnight. The coil wire is particularly succeptable to shorting to the water pump.

At night time, go start your car and look very closely at the coil wire, near the water pump. You'll probably see intermittant arcing.

Clean all primary and secondary wires with contact cleaner, and apply some dielectric grease to keep the moisture away.

During wet weather, spray off the coil, wires and opti with some contact cleaner every month or so.

The LT1 ignition has to be THE worst design ever from GM.
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