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  #1  
Old March 5th, 2013, 01:35 PM
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Burke Bell
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Coil?

So the 90 has just not been running right for quite a while. Low on power and has even stalled on me a couple of times in traffic. Been trying to figure it out, thinking it was a fuel thing. Was just messing with the coil while it was idling. When tapping on it there was what looked like corrosion dropping out and the motor would start to stall. Guess I found my problem? Does it sound like a new coil would solve my issues? If so, it looks like a easy swap correct?

Thanks as usual guys!
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  #2  
Old March 5th, 2013, 01:44 PM
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Pardons ignorance, but this is the coil correct?
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Old March 5th, 2013, 01:53 PM
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Yes, the question is why did it fail? Could be excessive dwell angle issue known to afflict the 94s.

Since coils are cheap, and the relocation kit is not, I would start with the coil and go from there.
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Old March 5th, 2013, 02:28 PM
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Tony Brooks
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I was surprised to see that the price on the relo kit (stc1856) has finally dropped back down ($150 @ AB). I think it was close to $300 for a while there.
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Old March 5th, 2013, 02:42 PM
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In that case, assuming it is genuine or good quality, that is worth it.

AB's looks to be aftermarket and I would be most concerned that the ignition module is lucas brand not some real crap. RN wants $599 for it genuine.
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Old March 5th, 2013, 02:43 PM
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Tony Brooks
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Isn't there a $9 GM part that's an easy retrofit as well? I seem to remember that from the nightmare that was dealing with this on my old '94.
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Old March 5th, 2013, 02:51 PM
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Quote:
Originally Posted by Abrooks View Post
Isn't there a $9 GM part that's an easy retrofit as well? I seem to remember that from the nightmare that was dealing with this on my old '94.
There is an aftermarket ignition module, but you have to redo some wiring to make it work.

For $150 the AB kit looks like the path forward or try to find one off a parted out disco/RRC that has the relocation kit.

I keep a spare ignition module in my truck for this situation.
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Old March 5th, 2013, 03:19 PM
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You can install an ignition module from an early 1990s GM HEI. They are cheap cheap, and millions of cars and trucks used it. It is the two in two out one. You need only some bits of wire and some connectors.
That said, the issue may be with the pickup inside the diz. They don't usually go bad, but the one I just pulled out certainly was.
As for the coil, if the engine is firing, then it's probably not the trouble.
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Old March 6th, 2013, 02:58 PM
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Burke Bell
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Thanks for the info guys. After just tapping the coil and jiggling the connections, she is running perfectly! I think I'll remove it and thoroughly clean all the connections. Should be good to go fingers crossed.
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