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

[project_x]

When I bought my 03, it came with the passenger side battery tray already installed. I thought they all came with it installed whether it was optioned with the 2nd battery or not. Strange. What advantages does having a 2nd battery? I don't have any serious current draws--cranking power?

I did it to have some extra power plowing my driveway. I think in my installation, it is disconnect until running (voltage above 13.5 or something).... You could probably boost from the 2nd batter if you needed to

 

[Tonyrodz]

Took the Tahoe to rehab today--just to get the fluids flowing. Ride there was fine--about 2-3 miles. Coming back all the sudden I lost the power steering. I knew what had happened! Threw the belt. Nice dude retrieved the belt for me. Looked at the belt and it split in the center between the ribs. Luckily I had a temporary/older spare with me, unfortunately I took all my tools out of the truck. I drove the last 1-1 1/2 miles without the belt. Whenever I had a straight road I'd shut it down and cruise it in neutral, then start it again to get moving, then shut it down again. This is nothing new for me. Got home and put the temporary belt on. All is good--so far. Now I just need a new belt.

 

[mattbta]

Took the Tahoe to rehab today--just to get the fluids flowing. Ride there was fine--about 2-3 miles. Coming back all the sudden I lost the power steering. I knew what had happened! Threw the belt. Nice dude retrieved the belt for me. Looked at the belt and it split in the center between the ribs. Luckily I had a temporary/older spare with me, unfortunately I took all my tools out of the truck. I drove the last 1-1 1/2 miles without the belt. Whenever I had a straight road I'd shut it down and cruise it in neutral, then start it again to get moving, then shut it down again. This is nothing new for me. Got home and put the temporary belt on. All is good--so far. Now I just need a new belt.

Been there, done that 3x in early 00's before I realized the ASP crank pulley I put on wasn't snug on the crank.

 

[Tonyrodz]

Back

Been there, done that 3x in early 00's before I realized the ASP crank pulley I put on wasn't snug on the crank.

A few years ago I was having issues with the serpentine pulley. It was either too many washers or not enough. It was literally throwing the belt every few miles. Hopefully it was just a fluke--still need a new belt tho.

 

[iamdub]

A few years ago I was having issues with the serpentine pulley. It was either too many washers or not enough. It was literally throwing the belt every few miles. Hopefully it was just a fluke--still need a new belt tho.

Check all the pulleys very carefully for something in the ribs before you install that new belt. I had a tiny pebble find its way into the A/C compressor pulley and shredded the belt. Was my first experience with a stretch belt.

 

[Keviebear86]

Did some basic maintenance and noticed that my factory exhaust manifolds/exhaust piping is starting to rust pretty good. I'll be looking in spring time to get new headers and a complete exhaust replacement. I don't intend on doing much to upgrade performance, so it'll just be for sound. Any suggestions on headers/manifolds? I'll be replacing everything at the same time to save a headache.

 

[Tonyrodz]

Fixed with a new serpentine belt.

 

[Alex_M]

Forgot to take any pictures, but went to swap 28 spline to 32 spline input on a manual shift transfer case to put in the 2500. Got the input gear popped into the planetary set and found the pilot bearing for the main shaft is smaller than what was originally in the tcase.

Had a buddy who's a machinist cut the pilot on the shaft down to size for me (I owe him a couple cold ones). Upgraded to a 6 pinion planet I had and got the transfer case back together, threw it in today.

That gets a manual tcase behind my manual transmission, and frees up an electronic shift transfer case for my truck that I pulled a bunch of bug chunks out of its electronic transfer case. Swapping that one out tomorrow.

 

[mattbta]

Ordered one of these because it was on sale. ¯\_(ツ)_/¯

Customizable Thread-on Gm/lsx Water Pump Snout Cap - Etsy

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[Jobi-Wan Kenobi]

Between yesterday and Friday did the u-joints on the rear driveshaft, rust proofed the frame with Fluid Film and fixed the exterior door handle for the drivers door.

 

[Doubeleive]

Installed the updated drivers side valve cover and new grommets and seal on the passenger side, that last coil bracket bolt on the passenger side can eat a bag of dicks

 

[Tonyrodz]

Tried driving the Hoe last night. I had replaced the serpentine belt maybe a week ago. I bought the same belt that was on there, which was a little bigger then stock because the original size didn't fit, due to me getting a larger output alternator. The original sized belt wouldn't go on, it was too small after the new alternator. I'd, maybe the pulley was a different size. While driving it I got the "Hot Coolant Temp". Would a wrong sized belt cause it to overheat? Maybe due to the belt slipping? The belt also squealed a few times while accelerating--which its never done before? I was thinking of getting the original sized belt to see if it would fit this time.

 

[Doubeleive]

Tried driving the Hoe last night. I had replaced the serpentine belt maybe a week ago. I bought the same belt that was on there, which was a little bigger then stock because the original size didn't fit, due to me getting a larger output alternator. The original sized belt wouldn't go on, it was too small after the new alternator. I'd, maybe the pulley was a different size. While driving it I got the "Hot Coolant Temp". Would a wrong sized belt cause it to overheat? Maybe due to the belt slipping? The belt also squealed a few times while accelerating--which its never done before? I was thinking of getting the original sized belt to see if it would fit this time.

Belt size shouldn't affect the temperature, check that the temp sensor harness under the alternator bracket didn't get jacked up

 

[Tonyrodz]

Belt size shouldn't affect the temperature, check that the temp sensor harness under the alternator bracket didn't get jacked up

When I got home antifreeze was puking out of the overflow.

 

[Doubeleive]

When I got home antifreeze was puking out of the overflow.

uh oh, check for a leak and if the coolant is low that would make it overheat

 

[strutaeng]

Referring to my post #42,920: I got the O2 sensors, but I don't believe mine on the truck are bad. I'm pretty sure I've got an intermittent stickying lifters. Usually happens when driving on the freeway for a length of time, maybe 15-20 minutes. Usually by the time I get home it goes away.

It's more consistent now, however. Last week I popped the hood when I got home and my tick is definitely coming from the top of the engine, maybe in each bank. LTFT we're around 20 and 25%. Am I correct to assume the lean condition is related to this? Lifter(s) not allowing valves to fully open? Not sure in intake or exhaust? Not like that really matters.

How can I diagnose the lifters? I was going to do a compression test and also borrowed a leak-down test. I'm thinking maybe new cam, lifters and whatever needs work, possibly heads... hopefully I can make it to the Thanksgiving break because truck is school kid commuter.

Otherwise truck runs good. Good oil pressure.

BTW, my windshield washer reservoir has started leaking. I removed it and my battery tray is badly corroded, I'm guessing from the acid? Had to use bolt extractor and was forced to grind one off. What's the better paint sold to the general public for heavy corrosion? I've always used rust oleum, but never had to deal with heavy corrosion. I think my AAP has POR-15?

 

[Fless]

@strutaeng Your positive fuel trims are what's causing the lean code that lights the money light (CEL); positive trims means the PCM is adding fuel. Ideally the sum of each bank's LT and ST trims should be 5% or less. What are your short term trims after it warms up, and what is the sum of ST and LT on each bank?

For example, Bank 1 LT is 10% and ST is -6%: 10 + -6 = 4%. Or -6 + 10 = 4%.

If the LT trims are way higher than the ST trims, then you may want to have the LT trims reset with a capable scanner. It takes the LT tables a while to adjust to ST trims that are significantly different.

10% (total) isn't bad, but anything over that is something that should be investigated. Adding 20% fuel that isn't getting burned can burn up your cats if you have them.

If the trim on both banks is high I'd be looking for a crack or loose hose on the intake tube after the MAF or some kind of vacuum leak, something that affects both banks. Another less common cause is a leaky injector, which can be checked with an injector balance test.

 

[clandr1]

Installed the updated drivers side valve cover and new grommets and seal on the passenger side, that last coil bracket bolt on the passenger side can eat a bag of dicks

What prompted you to change out the valve covers?

 

[Doubeleive]

What prompted you to change out the valve covers?

we bought this 05 3 years ago with 160k on it and now at 180k it has developed some above average oil consumption (about 2qt's every 5k) and both covers have been leaking.
I presume about 1/2 of that consumption is from the leaking and maybe from the older style pcv. It doesn't smoke a bit.

 

[mattbta]

Ordered one of these because it was on sale. ¯\_(ツ)_/¯

Customizable Thread-on Gm/lsx Water Pump Snout Cap - Etsy

This Car Accessories item by fissionspeed has 30 favorites from Etsy shoppers. Ships from Ontario, CA. Listed on Mar 14, 2024

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Received today. Didn't realize how bad the balancer looks and this WP is fairly new, but been off 3x due to head issues a couple years ago and previously had clutch fan.