What did you do to your OBS GMT400 Tahoe/Yukon Today?

[noJeepshere]

Completed my front hub replacement a few days ago. I used Timken hubs. It did not go easy. My bolts were so bad they needed the bolt heads chiseled off and then extracted due to rust deterioration of the bolt head. Only 2 of the total of six (Did both sides) came out clean. I had to pay to get it up on a lift because it was too involved for jack stands. I also had to pay $13 a bolt because I did not have them on hand and had to pay to have them delivered. The good news is that it fixed the problems I was having with wheel movement and the ABS sensor activating when driving low speeds. Now my truck is back to being dependable. I was going to go ahead and change my front oxygen sensors while I was at it but the rust is so bad I had to stop or risk twisting the whole bung out of the exhaust pipe. I guess 173,000 miles of road salt will complicate things. I wish I would have washed the truck more often.

Sounds like how my first set of front hubs went. I had to torch 4 off and only one came out clean.

sent from a slablet

 

[bowtiefreak]

Idler pulley, tensioner assembly, Steering position sensor. Like a new truck again

 

[noJeepshere]

Removed a leaf from my front spring assembly, couldn't stand the stiff ride anymore. To say removing the third overload improved ride quality would be an understatement! It rides almost as well as the stock ifs did. I'm glad I didn't wait until the weather warmed to do that.

sent from a slablet

 

[Donnie Yukonie]

Pulled the 92 in to find out whats been squeaking in the rear axle and of course both rear wheel cylinders are shot . going to do a full brake job and replace the lines while I'm back there

 

[Dneel81]

Getting the 2door back from the alignment shop today I hope. They had it yesterday and called me whining about "whoever did the lift kit left all the bolts way loose." I let him rant for a bit and then told him I was the "dumb bastard" who left the bolts loose, that it was intentional, and that's why I had it towed to their shop to make their alignment easier. I didn't see the point of torquing down misaligned bolts. He didn't have much to say after that. I laughed and told him it was cool, just do the job right. either way I'm back in the 2 door today!

 

[jerryjoe28]

Getting the 2door back from the alignment shop today I hope. They had it yesterday and called me whining about "whoever did the lift kit left all the bolts way loose." I let him rant for a bit and then told him I was the "dumb bastard" who left the bolts loose, that it was intentional, and that's why I had it towed to their shop to make their alignment easier. I didn't see the point of torquing down misaligned bolts. He didn't have much to say after that. I laughed and told him it was cool, just do the job right. either way I'm back in the 2 door today!

lmao

 

[Dneel81]

Got rid of the gay chromed rear differential cover. Got one for $5 at the junkyard and sanded it/wire brushed it clean and coated it with the bedliner crap. bolted her up and sealed in the new gear oil. Looked like shit coming out...feel bad for waiting as long as I did to do that (4 months now). Front diff is tonight.

 

[chaingun427]

I think I found the problem... Aside from being grungy as hell, the rings on #6 are stuck hard... Pulling them all tonight and debating on ordering a set of flat tops

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[Big Poppa Pump]

Idler pulley, tensioner assembly, Steering position sensor. Like a new truck again

Sweet. just got my GM idler pulley, tensioner assembly and new belt from Amazon today. I'm going to try ad install them this Friday before some cold weather we have coming over the weekend.

 

[Donnie Yukonie]

The 92 got its rear drums , shoes, wheel cylnders and new lines

 

[chaingun427]

scrubbed and scrubbed some more pistons are about halfway clean, still need an afternoon soaking before im ready to put te rings in. But for comparison heres #6 the problem piston before

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[SunlitComet]

are you sure it is safe to continue? i dread to think how dirty the bearings, lifters and oil passages are. also your oil cooler is functional as well correct?

 

[chaingun427]

Mains are mint, rods are being replaced just because it's open, driver side lifters don't look too bad, but they're going to get changed out before it goes back together. I don't notice any build up on the oil passages in the crank and pressure was at 40lbs warm. I ran some marvel in the crank case and it looks a thousand times better than it did before.

I don't have the oil cooler hooked up at the moment, but the rad it's brand new so after a few more oil changes I'll be getting it connected

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[SunlitComet]

very well. the oil cooler will help prevent that nasty in the block.

 

[noJeepshere]

Cut the front bumper.

Since I removed a leaf from the front suspension the front end dropped about an inch, resulting in the wheels contacting the bumper while turning. 20 minutes of cutting and grinding and this is the result.

sent from a slablet

 

[Dneel81]

That looks sweet.

 

[Gzes]

Took the 2dr to the shop yesterday. Gonna get my 35p rebuilt. Felt so weird driving it after only driving the lade for a good while. Then will put the lade in for main seal..

 

[GM iraqi]

Thinking of buying this bad boy
But not sure yet

 

[chaingun427]

Thinking of buying this bad boy
But not sure yet

View attachment 59364

Depends on the look you're going for imo, looks like it's in great shape though

I finished scrubbing pistons last night, getting them ready for a xylene bath and honing the cylinders tonight, once my rod bearings come in it'll be time for reassembly

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[98blackbell]

Put the second set of spark plugs and wires in the truck for its 270,000 miles
Replaced the 2 lower O2 sensors got rid of my service engine light.
Oil change.
Replaced the 2nd set of ball joints on the truck(well 3rd if you count when I put the lowered control arms on)
Located the small leak in the exhaust
Fuel filter, had 120,000 miles on that.
Cleaned the K&N air cleaner.


Drove it 289 to Orlando, got 15.9 miles per gallon. A small improvement, cruising at 88 mph and really windy.

Seat of the pants it is peppy now. Got rid of rough idle and stutter it had developed.

I have a company vehicle and the wife has been driving the Tahoe. She has told me about the symptoms but as usual busy and did not think it was much of an issue. Well glad I jumped on it.

Now onto the rear hatch leaking. That has a pain in the butt.