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Re: Ignition switch failures.
Quote:
Originally Posted by HO455
I looked into what a starter solenoid should draw and I found some GM documentation that said that solenoid pull in amps should be 42 to 48 amps.
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Are you referring to the purple wire between IGN switch and solenoid? If so, that seems awfully high considering GM used only 12 gauge wire with a 16 gauge fusible link from the battery to the fuse panel BAT bus, to the ignition switch, and then to the solenoid.
Conventional wisdom is 12 gauge stranded wire is good for 25 DC amps continuous. But, heck, it's easy to draw that much or more with coil, hi-beams, heater fan, and radio. Add in brake lights and miscellaneous stuff, and I don't see how those factory wiring harnesses lasted even 1 year, much less 30+ years like mine did. I worked in electronics for nearly 20 years, and I just don't get it.
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Mike
1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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