Ignition control module question

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

BSAKing - 29 May 2005 04:00 GMT

I have a 76 vette and I had to replace the ingintion control module about 3
years ago - the first time since new.

Now - today it is experiencing the same symptoms - it died on me travelling
along, let it sit for a bit while I checked it out and then away it went
again.

When I replaced it, I did liberally apply the silicon grease to the back of
it. Now - the replacement I got from Canadian Tire (the equivalent of a
WalWart) and I am wondering if there is something else I should have
replaced at the same time? Or are control modules all not equal and maybe I
should have replaced it with one directly from GM?

thanks.

Reply to this Message

Ron in NY-67 427/435hp - 29 May 2005 14:38 GMT

>I have a 76 vette and I had to replace the ingintion control module about 3
>years ago - the first time since new.
[quoted text clipped - 10 lines]
>
>thanks.

===============================================================
It is always advisable to change the ignition coil when replacing a module on an
HEI system. Usually the primary of the coil intermittantly shorts out causing
damage to the module. Another possibility is your pickup coil. Every time the
vacuum advance pulls in or releases, the pickup coil leads flex. There is just
so much flexing a 29 year old pair of wires can take, until the strands give
out. Disconnect the pickup coil, and then put an ohm meter across the pickup
coil leads. Connect a piece of vacuum hose to the vacuum advance and apply
vacuum to the hose. This will make the coil rotate. Watch for any fluctuation in
the ohm meter indicating broken wires. By doing this, you will also find out if
your vacuum advance is working.

Good luck,

RON
========================================================
Remove the ZZZ from my E-mail address to send me E-mail.

Reply to this Message

BSAKing - 29 May 2005 15:38 GMT

Thanks for the pointers - I will check those out as I take a peek at it, and
I think to be sure _ I will get the delco parts this time.

>>I have a 76 vette and I had to replace the ingintion control module about
>>3
[quoted text clipped - 40 lines]
> ========================================================
> Remove the ZZZ from my E-mail address to send me E-mail.

Reply to this Message

BSAKing - 31 May 2005 22:03 GMT

I checked around and there appear to be 3 main makes of parts available
here:
- Delco
- Nehaus(sp?) (about the same price as the Delco)
- Excelor ( at about 1/2 again the price of the others. They say these are
performance parts (but on a stock 350 smogger?))

Should I just go with the original delco's?

I plan on replacing the ignition coil, pickup coil, and control module. Why
bother messing around on an almost 30 year old car.....?

thanks

Reply to this Message