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

[ratled]

Changed the rear and front diff fluid.

By the looks of the front drain plug I'd say its the first time for the front

I know I hadn't posted these here before but I do LOVE my truck lights - ARB 600 and the Goal Zero 250

I hope everyone enjoys the rest of the weekend!!

ratled

 

[Rocket Man]

Changed the rear and front diff fluid.
View attachment 355464

By the looks of the front drain plug I'd say its the first time for the front

View attachment 355465

I know I hadn't posted these here before but I do LOVE my truck lights - ARB 600 and the Goal Zero 250

View attachment 355466

I hope everyone enjoys the rest of the weekend!!

ratled

Look! There was a butterfly inside your diff!

 

[Sparksalot]

Topped off with 13.8 gallons of E85 @ $2.99/gal. 85 octane was priced at $3.49.

Now she's at 81% alcohol in the tank.

Thanking @Sam Harris for his tip on the local Alta stations. Been getting corn fuel there for several months now.

I’ve been paying $2.86 for 87 octane the last few weeks. Highway robbery.

 

[corvette744]

I’ve been paying $2.86 for 87 octane the last few weeks. Highway robbery.

Im at $3.57 i would be happy with 2.86

 

[George B]

Changed the rear and front diff fluid.
View attachment 355464

By the looks of the front drain plug I'd say its the first time for the front

View attachment 355465

I know I hadn't posted these here before but I do LOVE my truck lights - ARB 600 and the Goal Zero 250

View attachment 355466

I hope everyone enjoys the rest of the weekend!!

ratled

Thats the perfect size hammer for a diff lube change!

 

[Walchit]

I probably should have replaced the whole line, but after going to every parts store that was open Sunday and not getting any brake line or fittings I had to wait till my normal parts store was open on Monday. I ended up just cutting out the rusty part, and renting a flaring tool and using brake line couplers. It's not leaking but I feel like I still have air in the lines, maybe in the front from when the bleeder was leaking after I got the truck. Gonna try to bleed them again today, and see if I can finally get an alignment, it's been months now and I think my wife is tired of driving the Ford 500

 

[Walchit]

Topped off with 13.8 gallons of E85 @ $2.99/gal. 85 octane was priced at $3.49.

Now she's at 81% alcohol in the tank.

Thanking @Sam Harris for his tip on the local Alta stations. Been getting corn fuel there for several months now.

Do you have to have a flex fuel model to run E85? I know when I changed my fuel filter on my S-10 back in the day, I found out it had the flex fuel filter. I still never ran E85 because I don't really know anything about it.

 

[Fless]

Do you have to have a flex fuel model to run E85? I know when I changed my fuel filter on my S-10 back in the day, I found out it had the flex fuel filter. I still never ran E85 because I don't really know anything about it.

The fuel system has to be set up to run E85. The engine will use more E85 than straight gas, and the injectors and fuel pump need to accommodate that need. Take a look at the 8th digit of your VIN to see what letter it is. Mine is a "Z" indicating the 5.3L Flex Fuel L59 engine.

 

[clandr1]

The fuel system has to be set up to run E85. The engine will use more E85 than straight gas, and the injectors and fuel pump need to accommodate that need. Take a look at the 8th digit of your VIN to see what letter it is. Mine is a "Z" indicating the 5.3L Flex Fuel L59 engine.

I've heard conflicting information over the years, but is E85 detrimental to a fuel system, even one that has been built to accommodate E85? I used to fill up with it quite often years ago and the truck seemed to run better on it, but when I read there may be long term deterioration of fuel system parts/hoses, I stopped using it all the time.

 

[Scottydoggs]

I probably should have replaced the whole line, but after going to every parts store that was open Sunday and not getting any brake line or fittings I had to wait till my normal parts store was open on Monday. I ended up just cutting out the rusty part, and renting a flaring tool and using brake line couplers. It's not leaking but I feel like I still have air in the lines, maybe in the front from when the bleeder was leaking after I got the truck. Gonna try to bleed them again today, and see if I can finally get an alignment, it's been months now and I think my wife is tired of driving the Ford 500

did the master go dry at any point? if so you'll need to bleed the master. then re bleed the calipers.

 

[Sam Harris]

Topped off with 13.8 gallons of E85 @ $2.99/gal. 85 octane was priced at $3.49.

Now she's at 81% alcohol in the tank.

Thanking @Sam Harris for his tip on the local Alta stations. Been getting corn fuel there for several months now.

Yessir! Only place I know that has decent E85..!

 

[Walchit]

did the master go dry at any point? if so you'll need to bleed the master. then re bleed the calipers.

The alignment shop added fluid, that was the first I heard of it leaking, but I think they said they added 24oz. I know the pedal has been spongy ever since I fixed the leaking bleeder valve. I pumped a ton of fluid out today with a harbor freight bleeder, and they don't feel much better. I had read something about using a scan tool to bleed the ABS or something.
All I ever wanted was an alignment so I didn't ruin these nice tires. Now I'm just tired of working on it lol.

 

[Tonyrodz]

The alignment shop added fluid, that was the first I heard of it leaking, but I think they said they added 24oz. I know the pedal has been spongy ever since I fixed the leaking bleeder valve. I pumped a ton of fluid out today with a harbor freight bleeder, and they don't feel much better. I had read something about using a scan tool to bleed the ABS or something.
All I ever wanted was an alignment so I didn't ruin these nice tires. Now I'm just tired of working on it lol.

I know you can bleed, or cycle the abs pump with the tech2.

 

[Fless]

I've heard conflicting information over the years, but is E85 detrimental to a fuel system, even one that has been built to accommodate E85? I used to fill up with it quite often years ago and the truck seemed to run better on it, but when I read there may be long term deterioration of fuel system parts/hoses, I stopped using it all the time.

Newer vehicles use the same fuel system components except for anything that affects volume. More volume and larger injectors are needed.

A few comments you may find interesting: https://www.tahoeyukonforum.com/threads/e85.100381/post-1462326

 

[Scottydoggs]

The alignment shop added fluid, that was the first I heard of it leaking, but I think they said they added 24oz. I know the pedal has been spongy ever since I fixed the leaking bleeder valve. I pumped a ton of fluid out today with a harbor freight bleeder, and they don't feel much better. I had read something about using a scan tool to bleed the ABS or something.
All I ever wanted was an alignment so I didn't ruin these nice tires. Now I'm just tired of working on it lol.

try bleeding the master, pump the brakes like your bleeding a caliper, but crack a line nut like a bleeder valve till it stops spitting air out. do both lines.

 

[live2pull]

When I pulled my intake last month I did not pull the purge solenoid tube from the firewall side, I just left it connected and positioned out of the way.

Ended up popping a P0455. Gross evap leak.

I am assuming that as I was moving the tube around as I was working, the tube and fitting seal broke. And instead of rotating around the oring, the tube was rotating around the fitting. New tube fittings do not rotate and old tube fittings do. New tube installed, and codes cleared. We shall see if that fixes it.

Additionally , and this may get lost in the ethos, there are 2 different part numbers for said tube.
12578233 - 99-02
12575527 - 03-07
The difference is about 1/16" diameter on the firewall side, 03-07 being larger. Not sure is this is common knowledge or not.

 

[Walchit]

try bleeding the master, pump the brakes like your bleeding a caliper, but crack a line nut like a bleeder valve till it stops spitting air out. do both lines.

Thanks I will give that a shot, my wife is off today so I won't have to have the kids pump the brakes for me lol

 

[Walchit]

Thanks I will give that a shot, my wife is off today so I won't have to have the kids pump the brakes for me lol

Well, it still makes the woosh sound when you press the brakes, and feels pretty soft. I watched a video on checking the brake booster, and it seems like mine is holding vacuum. The only thing I can think of is air in the abs module, or maybe the module is just bad(I hope not, it looks expensive).
Trying to see if the guy my friend knows has a scanner that will do the abs bleed.

 

[Walchit]

I also watched a guy that was manually bleeding the module, but he had welded up some square tubing with nuts and a bolt to hold down some little valves on the ends of the pumps. Then he loosened another little bolt, then said you can bleed the bleeder valves. Seems like a lot of work.

 

[Scottydoggs]

I also watched a guy that was manually bleeding the module, but he had welded up some square tubing with nuts and a bolt to hold down some little valves on the ends of the pumps. Then he loosened another little bolt, then said you can bleed the bleeder valves. Seems like a lot of work.

i could swear i just seen a vid somewhere about pulling the abs fuse then re bleed.

then ive also seen vids where you need a good scanner to set the abs module to bleed its self pretty much.