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Re: Tbi, again!
Looks like someone used some kind of hot rod copper CPU grease as heatsink paste. Copper is conductive so if it gets in the wrong place it'll screw things up. I'd wipe it off and replace it with regular white Zinc-Oxide heat transfer paste. A 20oz tub of MG-Chemicals 860-60G is a lifetime supply.
The pickup coil generates a low level AC signal so polarity is not an issue. That's why it's not keyed. Plug it in any direction you want.
I'd clean it up and check the output of the pickup coil with an oscilloscope.
If you get a replacement be careful that it isn't one of the Chinese knockoffs that don't work.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
Last edited by hatzie; 11-05-2018 at 10:27 PM.
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