ignition coil trouble

[rroberts]

can anyone offer advice on why my ignition coil keeps burning up?

first time i replaced the module and that worked fine for a week then plastic starting melting from either the module or the coil.

i replaced both the module and coil and the car ran normally for about another week and starts cutting off. after the car has stayed off for a short time it will drive but only short distances. no plastic melting out as of yet.

 

[Red Regal T]

I guess no one is willing to take a guess at your problem. If I were you, I would call John Spina at Casper electronics. He's quite knowledgeable and can point you in the right direction.

 

[fast eddie]

you must put dialectric grese in between the moduel & the coil pack?

 

[rroberts]

thanks for the advice. i'll give the dielectric grease a shot.

 

[6=8]

Too late for dielectric grease?

Dielectric grease is mainly used to prevent moisture from corroding electrical connections. I doubt that within a weak the lack of this protection would result in a failing ignition module/coil. If the connections are resistive to the point of overheating components, I don't think adding dielectric grease is going to solve this problem, unless they are getting wet!

Double check the wires connecting the module to the coil pack. Make sure the connections are clean, and the wires have not been pinched to the point of wearing though the insulation. If all looks satisfactory, THEN add the grease for protecting the terminals long term. My original unit did not have any grease on it (My gasket was sealed fine) and was working when I upgraded to the type II/ individual coil setup.

If I remember my old unit, there were 3 spade type connections under the coils and on top of the module. On mine, I found 2 of the wires had been clamped on top of one another, with signs of wear. I don't know what would have happend had they connected to one another... Possibly what you are experiencing?

The first module melted? The replacement failed? The cause does not appear to be the part, but possibly the wiring or maybe a bad ground would cause the parts to fail? Looks like you need a new module AGAIN, but I would look for the cause of the problem before bolting another unit on. HTH!

I like John's suggestion.. Give John Spina a call before you make a greasy mess!

 

[Russ Merritt]

It's the plug wires. I'm not gonna write a book how it works but your wires are bad and it's burning up the coil! I forget what issue (May 2000 I think) but GM high tech did an article "fire in the hole" If you can find it read it!

 

[rroberts]

thanks for the advice guys...keep the suggestions coming.

dielectric grease and plug wires didnt solve the problem but will try any suggestions.

i sent an email to john spina for advice but hope someone can give me some help..

the buick dealership has been NO help.

 

[Russ Merritt]

Make sure the module is grounded, the plate the module bolts to take the whole thing off and make sure the module is grounded good to the plate. Take a volt meter and measure the ohms between the module and the battery gound terminal.