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how to: replace coil/ignition module

Old Aug 10, 2003 | 03:29 PM
  #1  
WishIHadAZ's Avatar
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From: northern va
Car: 87 iroc
Engine: L98 350
Transmission: 700R4
how to: replace coil/ignition module

hey guys, subject says it all. My car is stranded at a gas staion and Im pretty sure this is what I need. This will be my first time repairing this car and I dont know much about electrical stuff. Tell me what I will need and what I gotta do (Im stupid).
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Old Aug 10, 2003 | 09:29 PM
  #2  
88TAJeff's Avatar
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From: Sidney, B.C., Canada
Car: 88 T/A
Engine: 305
Transmission: 700R4
It's probably one or the other, most likely not both. Did you check for spark?
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Old Aug 10, 2003 | 10:32 PM
  #3  
SlowMaro's Avatar
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From: columbia sc
will it run at all??? if not then its prolly the coil, if it runs sloppy , its either plugs, wires, rotor, cap, or igniion module.
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Old Aug 11, 2003 | 01:46 AM
  #4  
WishIHadAZ's Avatar
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From: northern va
Car: 87 iroc
Engine: L98 350
Transmission: 700R4
Thanks for the input, but what I actually need to know is how to replace the coil/ignition module. I have the parts but my car is miles away so I'm going to do a repair I'm not familiar with by any means and I dont know what to expect..

The parts look pretty plug-and-play but any tips would be greatly appriciated.
:hail:
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Old Aug 11, 2003 | 07:10 AM
  #5  
SlowMaro's Avatar
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From: columbia sc
coil is super easy o replace, ...two 1/2 inch bolts hold it to te manifold...and two wiring harnesses are on the coil, a white one and a black one. also one wire leading from the center of the cap goes to the coil. not much to it...very self explainitory, ...very plug and play.

what year is the car?? is your coil on the distributor , or is it on the manifold???
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Old Aug 11, 2003 | 10:14 AM
  #6  
88TAJeff's Avatar
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From: Sidney, B.C., Canada
Car: 88 T/A
Engine: 305
Transmission: 700R4
the module is also plug and play, but make sure to smear lots of that silicon gel on the bottom of the module before installing it.
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Old Aug 13, 2003 | 01:16 AM
  #7  
WishIHadAZ's Avatar
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From: northern va
Car: 87 iroc
Engine: L98 350
Transmission: 700R4
update: went out to my car to do the replacement and was foiled by the little thing covering the distributer(a plate that extends backward from the top of the engine). I dont have the neccessary tool to remove the 3 'screws' with the weird 6 pointed star configuration on them.

Also I was wondering if my car should start at all if the module has gone bad??
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Old Aug 13, 2003 | 09:24 AM
  #8  
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From: Broomall, PA
Car: 1992 Chevrolet Camaro RS; 1986 Oldsmobile Cutlass Ciera Brougham
Engine: LH0 3.1 Liter V6; YBN 2.8 Liter V6
Transmission: TH-700-R4; TH-440
Hey WishIhadAZ,
I had a problem with my 3.1 V6 which seems very similar to yours. The car runs with no problem at all, then I go to start it to leave for work, boom it doesnt start. So now I check for spark at the wires, no spark. I replace the coil, its not the coil because the car still does not start. So I replace the ICM, and it starts up, only to die in a month's time. I would keep replacing it every month until it died. I then found out my pickup coil (what tells the coil where the distributor cap is firing) had a short in it. So I did a full distributor swap. Car runs fine ever since. Once you get the distributor cover off (I am assuming you have either an LB9 engine or an L98 engine), then you can label your wires on the cap, disconnect them, and take off the cap and your ICM will be right on the distributor plate. Once you see it just disconnect the wires and screws and replace. For the coil, you will need to have a strong drill and drill out all the rivets in the coil brackets, and reconnect all wires and then start it up. Hope I was able to help.
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Old Aug 13, 2003 | 09:25 AM
  #9  
PimpRod92RS's Avatar
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From: Broomall, PA
Car: 1992 Chevrolet Camaro RS; 1986 Oldsmobile Cutlass Ciera Brougham
Engine: LH0 3.1 Liter V6; YBN 2.8 Liter V6
Transmission: TH-700-R4; TH-440
Forgot to mention, if you did find that it was your ICM that died, you might want to replace your distributor all together if you see any rust and corrosion under the cap as well. Because doing so might save you from being stranded many more times. If it was your coil that died, I would just replace it and go.
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