Extra bulb in dash

[Shorty85]

Anybody tell me where this goes?
All spots are filled for bulbs on gauges
85 K10 Silverado Package

 

[Originalthor]

Possibly to your hvac. But usually it has a black and gray wire to that pigtail. The pink and yellow must be of some importance

 

[Shorty85]

Doesn’t reach
Not much wire maybe 6-7 inches

 

[Finkaire]

If it’s a California car it could be the check engine light?
Does it come on and go out when you start the car or just with the lights

 

[Shorty85]

Stays on all the time when key is on
Shuts off with key

 

[Shorty85]

I thought maybe prndl but there is no where for it to lock in

 

[Originalthor]

Two other things it could be is your 4x4 indicator light or fasten seat belt light.

 

[Shorty85]

I appreciate the answer but those bulbs are in already

 

[Octane]

Wobble indicator light?
Low blinker fluid light?

 

[Radiohead]

If the light doesn't go out, that's because it is a high gas price warning light. They've been stuck on since 1973

 

[Octane]

If the light doesn't go out, that's because it is a high gas price warning light. They've been stuck on since 1973

So, when the light goes out, you are out of gas?

 

[Radiohead]

No, your wallet gets weighed and is found wanting.

 

[Turbo4whl]

Electric choke light that's not hooked to a complete electric choke circuit any more?

 

[Shorty85]

That’s one of my idiot lights and that bulb is already in
Thanks though

 

[Redfish]

Anybody tell me where this goes?
All spots are filled for bulbs on gauges
85 K10 Silverado Package

I looked this up on a wiring diagram and...yellow with pink/black is for a Water In Fuel warning light. That sounds like something for a 6.2 Diesel to me.
On a second diagram it is for a Check Engine light.