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

[Keviebear86]

305s will look good...

 

[S33k3r]

Picked up the Suburban 2500, yesterday and it seems to be fully repaired. It passed state inspection, today, and I got it registered, finally. The clerk asked me why it took so long to get it registered... (It had been out of registration for over a year); I responded truthfully that the check engine light had been on, and it took us this long to figure out what was wrong and repair it.

The Escalade is finally registered to me -- got that done today, too. I'll get the title in 2 - 3 weeks.

 

[strutaeng]

Picked up the Suburban 2500, yesterday and it seems to be fully repaired. It passed state inspection, today, and I got it registered, finally. The clerk asked me why it took so long to get it registered... (It had been out of registration for over a year); I responded truthfully that the check engine light had been on, and it took us this long to figure out what was wrong and repair it.

The Escalade is finally registered to me -- got that done today, too. I'll get the title in 2 - 3 weeks.

What was wrong with your Suburban 2500?

 

[S33k3r]

What was wrong with your Suburban 2500?

It kept going into limp mode. First we thought it was the transmission. The transmission shop said it was the throttle body. They replaced the throttle body and it's harness. Things were great for a week, and then it started "reduced engine power again". Took it to our wiring shop, he thought it might be the connector on the body side of the harness, so he replaced that. Limp mode went away for several days and then came back. The only thing we hadn't addressed was the knock sensors, which had been throwing acode for a couple of years. Those were fixed yesterday.

Now we wait and see. I'm fairly sure it was the knock sensors though.

 

[ivin74]

I agree. I just need to start digging in--see what I find. Hopefully there's no programming or anything else involving the bcm.

Hit up the LS truck forum, those guys do all kinds of mods

 

[ivin74]

Welp... I may have done a thing today...

View attachment 434234

It was sold as 200k miles, but it's actually 226k. Still runs nice. Likely needs a transmission rebuild, but that was disclosed before I bought it. AC seems to be dropping water into the passenger floorboard. Gotta figure out what that is all about. But it saved me $500 on the sale. I'll register it tomorrow and see what the taxes are on it. But I bought it for $3k. I'm fairly sure I could part it out for $4k - $5k, if I had to. Hope to get another 100,000 miles out of it, though -- after having the transmission and AC drains checked out. The driver's seat isn't even ripped up. And it's a Platinum edition; that includes heated and cooled seats, front and second row plus heated/cooled cupholders up front.

Just the 6.0 is worth the 3k. At least that's what they are selling for on fleabay. Great buy. The coolant leak could be the heater core.

 

[SilverSport]

replaced the daytime running lamp bulbs as one was burned out...Philips 4114 Long Life bulbs X 2

Bill

 

[TahoeZ71_05]

Replaced the foglights with LED pods from harbor freight, rigged the original bracket and used the adjustment nut as a spacer. Works great, looks great, extremely bright

 

[Tonyrodz]

Replaced the foglights with LED pods from harbor freight, rigged the original bracket and used the adjustment nut as a spacer. Works great, looks great, extremely bright

Which lights are those? I'm due for an upgrade.

 

[S33k3r]

My wife discovered we had not successfully resolved whatever the eff is causing limp mode. So sick of this damn thing.

 

[Scottydoggs]

My wife discovered we had not successfully resolved whatever the eff is causing limp mode. So sick of this damn thing.

have you or any shops pulled the pcm plugs off yet to look for corrosion or a bent pin, or a bad wire leading to its plug?

 

[ivin74]

My wife discovered we had not successfully resolved whatever the eff is causing limp mode. So sick of this damn thing.

With out knowing what you have done to try to fix the issue. Some times the limp mode is caused by a bad gas pedal sensor or throttle body. I have even read that replacing the ground wire to the pedal module fixes the issue.

 

[ivin74]

The transmission shop said it was the throttle body.

Did you use an oem throttle body?

 

[TahoeZ71_05]

Which lights are those? I'm due for an upgrade.

Roadshock LED 3 inch spot from Harbor Freight

 

[ScottyBoy]

Roadshock LED 3 inch spot from Harbor Freight

I was actually considering getting those, as I have that SAME Air Dam on my truck. Good to know they fit perfectly in those squared off openings.

 

[S33k3r]

have you or any shops pulled the pcm plugs off yet to look for corrosion or a bent pin, or a bad wire leading to its plug?

Yep. THAT was the problem last time, but thanks.

 

[S33k3r]

Did you use an oem throttle body?

It is not OEM, but I got a second opinion on it, and they said the one used was high quality. I can't remember the brand for some reason, but it's an electronics company known for quality parts in the IT world.

 

[mountie]

Yep. THAT was the problem last time, but thanks.

Gotta be so frustrating.....

 

[S33k3r]

With out knowing what you have done to try to fix the issue. Some times the limp mode is caused by a bad gas pedal sensor or throttle body. I have even read that replacing the ground wire to the pedal module fixes the issue.

Thanks! That's really helpful. AFAIK, the pedal hasn't been looked at, though the throttle body, it's harness, and the connector on the Suburban have all been replaced. But the pedal ground and pedal sensor are interesting...

 

[S33k3r]

Gotta be so frustrating.....

It's not THAT frustrating, in and of itself. It's a 20 year old SUV, and it has been rock solid. The problem is the wife's opinion on it.