92 C1500 5.7 not cranking-short on park/n wire
I'm having problems with my 1992 Silverado. I turn the key to "Start" and everything seems normal except the solenoid does not engage, and therefore it doesn't start. The first time this happened I replaced the Park/Neutral switch and that seemed to fix it. The next time was a few weeks later. I left it over night and the next day it started fine. I drove it a couple more times before it failed again. Since then I've checked battery, checked the solenoid, checked the wiring from the solenoid to the crank fuse, checked the wiring from the ignition switch to the park/neutral switch, and checked the wiring from the park/neutral switch to the crank fuse. This is where I seem to have a problem, but I can't find the answer. The wiring diagram in my Haynes manual doesn't agree with reality, and is not detailed enough.
The wire from the park/neutral switch to the crank fuse shows a short (0.03 ohms) to the chassis: this is with the fuse pulled and the plug disconnected from the p/n switch. The wire leaving the p/n switch is not the same as the wire arriving at the crank fuse, making me think it goes somewhere before getting to the fuse. Without a good wiring diagram I seem to be forced to tracing the wire thru the bundles and looking for a short to chassis that might not be there, or that disappears when I get close. I hope someone has a suggestion. I'm trying to get on the lib.alldata site but think I need to update my library card. Meanwhile I'll be grateful for any help.
Last edited by AlleninHartwellGA; 03-25-2013 at 06:11 AM.
Reason: difference btw crank and start