All gauges are wonky...

[Old60Driver]

Just getting my new (to me) 83 K20 moving again, and I'm needing a bit of help regarding my gauges. Here's what I have:

• Volt meter - Needle never moves from 0
• Oil pressure - Needle never returns to 0, only moves a tiny bit (between 60-65)
• Temperature - Needle never returns to 0, indicated beyond 260 and moves from there as the engine warms up
• Fuel gauge - Gauge only reads 1/4 when full.

Could all of these issues be related? Maybe a ground? I would think if the ground had gone south, I wouldn't get anything, but maybe not?

I'll be looking into it in more detail when get home.

Thanks in advance!

 

[Scott91370]

My first guess would be ground. If you pull the gauges there is a ground bar on the left side, I think it holds 8). Good place to start.

 

[Old60Driver]

My first guess would be ground. If you pull the gauges there is a ground bar on the left side, I think it holds 8). Good place to start.

Roger that, thanks! I'll try pulling tonight...

 

[Craig 85]

Make sure the harness is making a good connection at the back of the gauge cluster. I've had that come loose on a prior truck causing little to no connection.

 

[AuroraGirl]

I was gonna say it sounds like the gauges aren’t properly being applied to their respective circuits and by that I believe most gauges on the truck are resistors in the wiring circuit they belong to, correct?
Also,does your illumination work properly? Is there a functional clock? Where does fuel gauge go when key off

does any dumb lights work, do you have working brake, 4wd, choke, and.. uh.. whatever the other light is. Turn signals? High beam?

edit: seatbelt. Seatbelt warning light. Unless you’re a diesel with glow and water indicator

 

[Old60Driver]

Make sure the harness is making a good connection at the back of the gauge cluster. I've had that come loose on a prior truck causing little to no connection.

I'll probably find out when I get home, but is that something I can check without removing the gauge panel?

Thanks!

 

[Old60Driver]

I was gonna say it sounds like the gauges aren’t properly being applied to their respective circuits and by that I believe most gauges on the truck are resistors in the wiring circuit they belong to, correct?
Also,does your illumination work properly? Is there a functional clock? Where does fuel gauge go when key off

does any dumb lights work, do you have working brake, 4wd, choke, and.. uh.. whatever the other light is. Turn signals? High beam?

edit: seatbelt. Seatbelt warning light. Unless you’re a diesel with glow and water indicator

Illumination is dim, but seems to be working. Clock isn't working, no. I believe the fuel gauge moves toward the empty mark, but I can't say for certain. I'll check when I get home

4WD light works, as does the brake (emergency) and the seat belt signal.

Thanks!

 

[AuroraGirl]

Illumination is dim, but seems to be working. Clock isn't working, no. I believe the fuel gauge moves toward the empty mark, but I can't say for certain. I'll check when I get home

4WD light works, as does the brake (emergency) and the seat belt signal.

Thanks!

Those are discrete inputs I believe, so it would make sense. I think. , yes , they would not get a dim signal just an illuminate or not. I would definitely be looking at your ground and in the process you would have to check your connector anyway so good time to verify all the contacts look good, clean with swabs, make sure nothing. Bent

 

[Bextreme04]

On my truck, 4wd has its own separate wiring that does not go through the regular cluster connector. The seat belt and brake light go through the regular cluster connector.

 

[AuroraGirl]

On my truck, 4wd has its own separate wiring that does not go through the regular cluster connector. The seat belt and brake light go through the regular cluster connector.

Well at least seat belt snd brake are working. I domt know under what circumstance a choke light goes on, looks like key on, no oil pressure?