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

[mountie]

Joined the 300k Club.

View attachment 361274

Where did you stop when you took the picture?

 

[Merc1973]

Where did you stop when you took the picture?

I had my camera ready to take the picture because I knew it was coming. It worked out with me stopping at a red light.

 

[mountie]

I had my camera ready to take the picture because I knew it was coming. It worked out with me stopping at a red light.

Ah, yes.... Those cop cars have red lights.....

 

[Merc1973]

Ah, yes.... Those cop cars have red lights.....

Hahah

 

[Tonyrodz]

Checked out the Tahoe today--finally. Pulled the plugs. Cylinder 2 was discolored(black)and ever so slightly wet--not much. All other plugs were great. There's probably 500 miles on them since they were changed.
Cylinders 2,4,6 and 8.

Cylinders 1,3,5 and 7.
Looked great, as they should.
I tightened 3 loose exhaust manifold bolts on the driver's side. That's where I was having an issue with stf/ltf, bank 1. I guess that was the issue. Runs 100 times better, but I still heard a little popping from the exhaust. Nothing loud or anything, but I heard it.
I saw some antifreeze drip out of the right side heater core line. I guess I leaned on it when I was trying to pull that last plug. I pushed it in and gently wiggled it, and it seemed fine. I let it run for awhile, then took it for a ride. System didn't pressurize, so idk what to think about that. Needle didn't move a lot past 160 degrees. Heat worked. Guess I'll keep an eye on it. No more leaks tho.

 

[Tonyrodz]

AUX PWR 2, location: Fuse Block - Left I/P

Unfortunately that fuse is good. I'm wondering if a wire melted or came unplugged. I used that rear pwr port for my air pump, which got hot a few times.

 

[89Suburban]

@iamdub regarding the fuel pump

So after driving a day I pulled the taped down panel off the floor to check for any fuel connection leaks and everything looked good to go. I deburred the cut metal areas, cleaned off any rust spots bets I could. Treated any exposed/rusty metal areas with some combination spray primer/paint. Cut up some aluminum mounting tabs to mount to the access panel using aluminum rivets. Sealed everything up with Sikaflex 1A adhesive/sealant. I then used some stego tape to cover that to protect it from the carpeting/padding. Reinstalled all the interior. I'm sorry I didn't get any pics. Frigid ass cold out here.

 

[mountie]

Checked out the Tahoe today--finally. Pulled the plugs. Cylinder 2 was discolored(black)and ever so slightly wet--not much. All other plugs were great. There's probably 500 miles on them since they were changed.
Cylinders 2,4,6 and 8.
View attachment 361288View attachment 361289
Cylinders 1,3,5 and 7.View attachment 361290
Looked great, as they should.
I tightened 3 loose exhaust manifold bolts on the driver's side. That's where I was having an issue with stf/ltf, bank 1. I guess that was the issue. Runs 100 times better, but I still heard a little popping from the exhaust. Nothing loud or anything, but I heard it.
I saw some antifreeze drip out of the right side heater core line. I guess I leaned on it when I was trying to pull that last plug. I pushed it in and gently wiggled it, and it seemed fine. I let it run for awhile, then took it for a ride. System didn't pressurize, so idk what to think about that. Needle didn't move a lot past 160 degrees. Heat worked. Guess I'll keep an eye on it. No more leaks tho.

I feel that my Yukon drives fine..... smooth...... But, I wonder if getting a fresh set of plugs ( even coils?)... Might make it better? I have no idea how old my stuff is....

 

[89Suburban]

F_Uck I posted in the wrong thread again.

 

[Tonyrodz]

I feel that my Yukon drives fine..... smooth...... But, I wonder if getting a fresh set of plugs ( even coils?)... Might make it better? I have no idea how old my stuff is....

Plugs can't hurt. How's your wires?