What did you do to your NBS GMT800 Tahoe/Yukon Today?

[strutaeng]

Last weekend I finally took the time to remove my windshield washer level switch on my 99. I hate to admit this, but several years ago I removed that switch and apparently installed it backwards without knowing it. Ever since, my low level appears on the message center when I filled the reservoir every time I started it. After a while of use, the message didn't show up.

I replaced the reservoir tank on my 06 Suburban because I have a persistent leak (which I still have!) and was going to use the switch on the 99. But I checked it and mine was good. So I reinstalled it but rotated it 180 degrees. I added a bit of RTV.

I also painted my battery tray since it was pretty corroded. I had painted the battery tray on the 06 when I did that. I'm guessing the battery acid causes this rust.

Anyway, no more annoying low windshield washer fluid message!

Regarding the switch: I think it should have continuity normally when there's fluid in the tank. As the fluid drops, the float causes the continuity to break. I compared the 99 switch vs the 06 and they are a bit different, but operation is the same.

 

[NoReverseYukon]

For those of you with dual batteries & a solenoid - Does this mean my solenoid is bad :

There is no key in ignition. I think it took a dump.

 

[clandr1]

For those of you with dual batteries & a solenoid - Does this mean my solenoid is bad :
View attachment 440247
There is no key in ignition. I think it took a dump.

I think it's potentially a bad battery. If it drops below 12.6v once given a chance to rest overnight, I believe it needs to be replaced.

 

[NoReverseYukon]

I think it's potentially a bad battery. If it drops below 12.6v once given a chance to rest overnight, I believe it needs to be replaced.

My thought was that, with the solenoid stuck in the closed position, the battery gets drained when the voltage jumps across the plunger contacts in the solenoid.

 

[clandr1]

My thought was that, with the solenoid stuck in the closed position, the battery gets drained when the voltage jumps across the plunger contacts in the solenoid.

Good thought, and definitely a possibility. With the key off, have you checked for continuity across the solenoid (when it should be open)? If there is continuity, there is your culprit.