What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Doubeleive]

Pulled both battery's, drove all the away across town to find the shop I bought them from closed at 3pm, , so in the meantime I put the original ac Delco standard battery back in and hooked everything up including the rvc sensor, started it up turned everything on and same results, 11v and the dam fuel economy mode is still active, couldn't be heat related to the battery.

 

[Rocket Man]

Pulled both battery's, drove all the away across town to find the shop I bought them from closed at 3pm, , so in the meantime I put the original ac Delco standard battery back in and hooked everything up including the rvc sensor, started it up turned everything on and same results, 11v and the dam fuel economy mode is still active, couldn't be heat related to the battery.

View attachment 226675 View attachment 226676 View attachment 226677

Dammit.

 

[Doubeleive]

Dammit.

that's what I said!, got there at 3:20 the guy was just jumping in his truck to leave , I have a feeling my battery's are fine though and that it's probably this rvc firmware

 

[NathanJax]

Hopefully you are the one that bought @fiatdale cluster that was listed for less than 12hrs.....

He was not

 

[iamdub]

Lemme "grill" y'all for a minute...

I dug out two candidates for "custom" grilles. I still may not use either of these and may pick up a sheet of stucco mesh since it's easier to work with. Whichever I use, it'll be painted satin black and recessed deep. I'll make two small matching ones to go in the tow hook holes. I think I know which one I like best, but the other gives me doubts. They're not such a concern, but I listed the stats for fun. What y'all think?

Contestant #1. Perforated mild steel, 1/16" thick, 1/2" holes on 11/16 centers, 48% open area:




Contestant #2. Aluminum, 1/2" #16 flattened expanded, 64% open area:

 

[Rocket Man]

Lemme "grill" y'all for a minute...

I dug out two candidates for "custom" grilles. I still may not use either of these and may pick up a sheet of stucco mesh since it's easier to work with. Whichever I use, it'll be painted satin black and recessed deep. I'll make two small matching ones to go in the tow hook holes. I think I know which one I like best, but the other gives me doubts. They're not such a concern, but I listed the stats for fun. What y'all think?

Contestant #1. Perforated mild steel, 1/16" thick, 1/2" holes on 11/16 centers, 48% open area:

View attachment 226685


Contestant #2. Aluminum, 1/2" #16 flattened expanded, 64% open area:

View attachment 226686

I vote #1.

 

[swathdiver]

View attachment 226676

Hey Wes, your battery temp is reading in Celsius for some reason, 55 degrees celsius is 131 degrees fahrenheit. Mine stopped charging the other day when the battery temperature got just shy of 110 degrees and it was about 99-100 out on the highway. My battery is an ACDelco 48PS and is 35 months old now. The shop manual says to not charge the battery if the temperature climbs past 45 degrees celsius or 125 degrees fahrenheit. I've been looking for a half hour and don't see anything else about it.

 

[swathdiver]

Crawled under the truck today to look at some wiring and saw that the rear of the transfer case and front of the driveshaft was a little wet and that the front of the rear differential was also a little wet. So it looks like the seals need replacing on both. Need to get her up in the air a little to check the fluid levels, maybe tomorrow.

 

[Doubeleive]

Hey Wes, your battery temp is reading in Celsius for some reason, 55 degrees celsius is 131 degrees fahrenheit. Mine stopped charging the other day when the battery temperature got just shy of 110 degrees and it was about 99-100 out on the highway. My battery is an ACDelco 48PS and is 35 months old now. The shop manual says to not charge the battery if the temperature climbs past 45 degrees celsius or 125 degrees fahrenheit. I've been looking for a half hour and don't see anything else about it.

I think the firmware is goofy that battery was under the hood for about 30 minutes and had not even been ran for even 5 minutes when I took that reading, it was about 95deg today so I guess anything is possible, I will take another reading tonight after it cools down and see if it changes anything

 

[iamdub]

I vote #1.

I knew you'd say that.