Ignition module replacement
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Senior Member

Joined: Aug 2001
Posts: 814
Likes: 2
From: San Jose, CA, USA
Car: 88 IROC-Z - original owner!
Engine: LB9 with K&Ns, MSD, Foil, Taylor
Transmission: WC T-5
Axle/Gears: BW 9-bolt, 3.45 posi
Ignition module replacement
Yo guys, I think the 8 pin module in my dizzy has seen it's better days. Can it be replaced with the diz still in the engine, or do I have to pull it? TIA.
Supreme Member
Joined: Mar 2002
Posts: 1,654
Likes: 2
From: Lower Salford, PA
Car: 1987 Camaro Z-28
Engine: 6.3L Victor EFI
Transmission: Tremec TKO 600
Axle/Gears: Moser 9"/4.11 Trac-Lok
It can be done in the car. Be sure to use new silicone paste that is included with most replacement modules.
Thread Starter
Senior Member

Joined: Aug 2001
Posts: 814
Likes: 2
From: San Jose, CA, USA
Car: 88 IROC-Z - original owner!
Engine: LB9 with K&Ns, MSD, Foil, Taylor
Transmission: WC T-5
Axle/Gears: BW 9-bolt, 3.45 posi
Thanks for the info guys, glad to hear I don't have to pull the dizzy.
Yeah, I know about the silicone heatsink compound. Actually, I'll use some of the silver-loaded heatsink grease I use for computer CPU heatsinking since it conducts heat better than the plain stuff.
But what about the module itself? A new Delco D1990 module costs like $80 or so from the local dealer. I can get a new Pertronix module from Summit for under $50. Will the Pertronix module last?
TIA.
Yeah, I know about the silicone heatsink compound. Actually, I'll use some of the silver-loaded heatsink grease I use for computer CPU heatsinking since it conducts heat better than the plain stuff.
But what about the module itself? A new Delco D1990 module costs like $80 or so from the local dealer. I can get a new Pertronix module from Summit for under $50. Will the Pertronix module last?
TIA.
Thread Starter
Senior Member

Joined: Aug 2001
Posts: 814
Likes: 2
From: San Jose, CA, USA
Car: 88 IROC-Z - original owner!
Engine: LB9 with K&Ns, MSD, Foil, Taylor
Transmission: WC T-5
Axle/Gears: BW 9-bolt, 3.45 posi
Thanks guys. the new module was indeed the fix for my cutting-out problem. I put in a new Pertronix D2002 module, fired it up and took a drive. No more problems, I guess the old stock module had sparked it's last. And yes, replacement of the module with the diz in the car was no problem at all. Instead of the clear silicone gel that Pertronix supplied, I instead used Artic Silver heatsink compound, which has higher thermal conductivity, it's used on computer CPUs between the chip and the heatsink/fan. Anyway, thanks again to the experts on TGO to help me solve the problem with my motor.
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