For Other Videos In This Series See My Playlist Collection:
“1982-1993(94) Chevrolet S10/Blazer & GMC S15/Sonoma Technical How-To Videos”
https://www.youtube.com/playlist?list=PLTfCqKOQ5O-sxtEJRbY-I8Z57mnodq_WM
For Other Videos In This Series See My Playlist Collection:
“1973-1991 Chevy/GMC Square Body Pickup & SUV Trucks”
https://www.youtube.com/playlist?list=PLTfCqKOQ5O-vOPB_ZbOtNtRQRioEwSL4D
Example is of an 82-85 era S10 gauge cluster printed circuit board, very similar GM concept from about the 60’s through the 80’s.
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Home improvement stores sell dielectric grease in automotive next to epoxy's. Use this on "Edge-board" terminals to keep from future damage of socket terminals. Also, tooth pick the grease on the bulb sockets, bulb wire contacts and studs on gauges where the plug in. Use a smear on back under clips and back of clips. OEM clips are better. Sandblast if able. Otherwise, cut a wood paint stick/paddle to size, grind or cut thickness with knife, the wrap 320-400 grit sandpaper over end. Hold in place with tape, masking or otherwise. Insert and clean inside of clips. Compressed air at 20 PSI or less, use to clean sanding debris from clips. It protects them from water or moisture in the air when temps change.
Tach; Plugged in wrong or does not require B+. Some tach's require a "Pull-down" circuit using a 460 ohm resistor to ground to limit drain some voltage (in series, limits current/amps). Other tach's require pull-up circuit. Here, the resistor goes between tach lead as before to B+. I don't think GM used that or either.
Online, find "S10 Forum" join and look for electrical section. Some Forums have search feature to "See Schematic" but if tach is from a different model or year, use that schematic or wiring diagram!
DK, ASE master since 1978.
I have a strange question why my gm milege counter is ticking he cinde of stop working evry time I put coolant in winter inside my engine is that a back charging issue? And how bypass linear voltage regulator? My ignition coil aperantly has somthing to do with the dash voltage regulator so in winter I dont have enough voltage to start engine I have gm bypass starter selenoid but the polarity is wrong I used even a diode and my positive linear voltage regulator refuse my to crank when I use that starter selenoid R terminal my fuse pop's I have singel coil gm hei e core type with delco induction trigger and 4 pin gm ignition module.
So my question is how by pass that dash regulator ore how culd I make my R terminal starter wire to make work? Is there a way to use bouth linear voltage regulators polarity ore swap it some how?