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Old 08-24-2014, 08:45 PM   #1
Legolas894
Chemist under the hood...
 
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Join Date: Apr 2009
Location: Fort Erie,ON, Canada
Posts: 617
Good lesson on Grounding

Haven't done much with my 67 other than drive it for the last few years. Don't normally drive at night either but had to pick up some dog food so off I went. Got pulled over by police for having a fluctuating taillight! Really??? but still talked my way out of it.

Anyway, thought I would have a look and sure enough one side would dim while the other was flashing if the headlight were on. So, I changed the regulator (had one on the shelf). This made the voltage more stable on my volt gauge but didn't fix the tail light issue. Then took apart the tail lights and they were pretty corroded so I order new sockets and lenses from LMC. Took a look at the harness and it looked pretty cut up so I ordered a new one of those (front to back harness) and soldered the tail light harness breaks and shrink wrapped the wires. All looked good, got my new harness, sockets and lenses in. Power it up and ... worse than before! Now, both taillights would blink when any signal was on, I had no reverse lights but hazard lights worked. Put old harness back on-still bad.

Then got a battery charger out and hooked up to tail light harness and everything lit up fine with the negative clamp on the bumper and a +ve wire on the harness prongs-good get all the right lights working on each of the four prongs..

Long story short-Bad grounds on taillight assembly. I just thought I would put a wire from the bumper to the taillight screw on the lens and then everything worked light brand new. A good lesson for an old guy-Check the grounds even after you thought you had!

Of course, once I was under there, I started working on changing out the shocks. More to do...
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Current fleet:
2013 GMC Sierra, 5.3L, 4x4
1988 GMC Sierra, 305, Auto
1984 Jeep Grand Wagoneer, 360 V8
1997 VW Cabrio, 2.0L
2017 Toyota Rav4, 2.5L

Stuff I wish I still had:
2013 Toyota Matrix [RIP]
1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD]
1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD}
1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD]
1995 Chevrolet Astro AWD, 4.3L V6 (RIP)
1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD]
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