the shaolin
Newbie
- Joined
- Sep 16, 2011
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Hello,
I have a 1991 K1500 that has had a chronic electrical problem. It has recently gotten worse and it stranded me on the way to work this morning
Truck has 114,000 miles, 5 speed, originally v6, previous owner swapped in an 1988 TBI 350. It was my daily driver for 2 years and then I bought a car and now it only gets driven when I need the 4x4.
Here are the symptoms:
-Truck RARELY runs at 14v. The voltage gauge is usually about halfway between "dead" and "charged" while driving. I'll call this "half."
-Occassionally, the gauge will drop to "dead". When this happens, you've got about 5 minutes to pull over and yank on the brown wire coming out of the alternator. When you do this, the idle picks back up, the gauge jumps to either "half" or "charged", and everything is fine. High rpm or bumps seem to make it drop back to "dead". I had to pull over and yank on the wire 3 times this morning. The 4th time, I wasn't fast enough and the truck died.
-Battery has a slow drain. If the truck is parked for more than a day or two, it is completely dead when I get into it.
The battery and alternator are both new and test good. I think that brown wire goes to the dashboard gauge.
If I can't fix this easily, I'm looking for the best way to rig it. (Maybe run the brown wire to the red wire going to the alternator, and add a battery disconnect switch to kill the slow drain?
Thanks!
I have a 1991 K1500 that has had a chronic electrical problem. It has recently gotten worse and it stranded me on the way to work this morning
Truck has 114,000 miles, 5 speed, originally v6, previous owner swapped in an 1988 TBI 350. It was my daily driver for 2 years and then I bought a car and now it only gets driven when I need the 4x4.
Here are the symptoms:
-Truck RARELY runs at 14v. The voltage gauge is usually about halfway between "dead" and "charged" while driving. I'll call this "half."
-Occassionally, the gauge will drop to "dead". When this happens, you've got about 5 minutes to pull over and yank on the brown wire coming out of the alternator. When you do this, the idle picks back up, the gauge jumps to either "half" or "charged", and everything is fine. High rpm or bumps seem to make it drop back to "dead". I had to pull over and yank on the wire 3 times this morning. The 4th time, I wasn't fast enough and the truck died.
-Battery has a slow drain. If the truck is parked for more than a day or two, it is completely dead when I get into it.
The battery and alternator are both new and test good. I think that brown wire goes to the dashboard gauge.
If I can't fix this easily, I'm looking for the best way to rig it. (Maybe run the brown wire to the red wire going to the alternator, and add a battery disconnect switch to kill the slow drain?
Thanks!
