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

[SunlitComet]

Liking your custom cover of the airbag. Gotta ask How did it feel? Have not had the pleasure of the experience yet.

---------- Post added at 05:49 PM ---------- Previous post was at 05:48 PM ----------

BTW, your system voltage seems high.

 

[noJeepshere]

Liking your custom cover of the airbag. Gotta ask How did it feel? Have not had the pleasure of the experience yet.

---------- Post added at 05:49 PM ---------- Previous post was at 05:48 PM ----------

BTW, your system voltage seems high.

Test of the voltage with the gauge reading where it is reveals it is 14.4v, so ok there.

The airbag was not as loud as I thought it was, but I'm shoot a lot of guns so I'm used to loud. I didn't even hit the bag as it deployed, the impact speed was low (~15mph) and the seatbelt did its job.

I'm going to used that thick nylon thread used in Scout craft projects to sew the cover shut and keep it as a memento of the accident. The passenger one I'm just going to replace with the cubby low rent trucks came with.

---------- Post added at 07:10 PM ---------- Previous post was at 07:07 PM ----------

I also installed some aftermarket gauges.

 

[KyLafoon]

Replaced the tail light lenses on my '96 Tahoe LT 2 dr. Was a good bit more effort
than I anticipated. One of the beauties of these vehicles is that many assmeblies are serviceable. Being able to restore components cost effectively has me lovin' my 'Hoe!

 

[SunlitComet]

Well I picked up the hoe today with the used tranny in it. Does not have the hard 1-2 kick anymore but the used one seems to have long shifts to it. That plus the codes I have had before leads me to believe that the previous shop did not perform the expected upgrades at all that were requested. Even think that the rear gear was chattering but by the time I got to the hotel again it seems to have disappeared. Will do some more testing of it tomorrow with the mt2500 hooked up to monitor all the tranny data and see if something is a goof or if it was just going thru its learning phase. The tranny supplier wanted the old one back complete so since I could not afford the core charge of $75 I had to let it go. From what I could gather the 3/4 clutches while burnt looking and smelling still seem to have plenty of life left on them. Likely at least 75k miles on them left. Could not get to the others. Also could not get the pump torn down but further visual inspection and finger poking showed that the TC stator bearing had failed and that the bushing around the front of the pump was really badly scored. Splines were eaten a bit too. The TC and the input shaft were able to wobble quit a bit as a result. For now the current one will have to do. Till I can afford the the 4l80e upgrade. The moment I can get all the parts together for it I am dumping the used one. Does not even feel like it has a shift kit on it.

 

[SunlitComet]

Well after further testing and scanner diagnostics I have determined that the lo/reverse clutch pack in the used unit is not good and the 3-4 is showing some issues as well. It is going back into the shop Monday morning. I am getting long lag times shifting into reverse or drive when cold and it drags ass for a bit till warm. Most of the shift errors that the pcm is recording are from +.23 to +.97 seconds. No solenoid issues and the PCS unit is compensating as much as possible to avoid slippage but it is just not good enough.

 

[landsoul]

Replaced the steering wheel position sensor today.

 

[SunlitComet]

Dropped the hoe off at the shop again to have the used tranny swapped out for another used one. Hopefully in better shape. By the time I got there (2 blocks away) reverse, 3rd and 4th gear were wiped out.

 

[BirchyBoy]

Ouch. Good luck!

 

[jdpber]

Better just swap to a 4l80

 

[Gzes]

Stared at it yesterday. Maybe today I'll hook up a charger and fire it up

 

[SunlitComet]

Better just swap to a 4l80

Had plans to but can not do it now. Spent the only grand I have to get it fixed and the best I can do is a used one right now. The job assignment I had last is done and for whatever reason others I have been put on have been pushed backed do to them not getting in the aircraft. I have been with out work since 1-24 I think and seriously do not know what to do. I can't spend any money I don't have.

 

[chaingun427]

dropped the old auto transmision and autotrac transfer case out of my project hoe yesterday, will be pulling the bad motor today. will any luck i'll be dropping in an nv4500 and floor shift transfer case next week

 

[t3amcha0s]

Put some Nitto Terra Grappler on 265/75/16

 

[BirchyBoy]

GuzzleTron is slowly becoming TroubleTron again. I backed out of the driveway this morning and noticed some new oil drips on the driveway. Got going about 25 mph and noticed a thumping coming from under the seats. An "I feel something hitting the floorboard" thumping. I pulled over, didn't see any dead cats or other animals (as I suspected) but I did find a nail in my tire. Turned around and the thumping is still there. Not sure where to even begin with this one as there's nothing that I could see caught in the drive shafts.

When I get it up on jack stands this weekend for the brakes, I'll crawl all the way under this f'ing thing and see what's up.

 

[SunlitComet]

So far good on second used tranny. A new 2-4 band was put in while it was being partially inspected. 3-4 clutch pack was very good shape and no signs of overheating in it. To my knowledge no shift kit in but the 1-2 hard kick is no more so maybe I got lucky. Scanner data looks promising. Shifting timing has seemed to go back to normal. And no defunct pcs solenoid now. I hope this will last a while till I get a monster on in there later. If the supplier will let me have my core back for free then when I find the time and space I will tear it down for photo documentation.

 

[landsoul]

I replaced the steering sensor. This fixed the sporadic steering input in corners and firmed up the steering overall.

 

[knucklebuster283]

Not done today but last weekend on the Yukon. All four ball joints, all four tie rods, idler arm, and center link. Handles sweet now.

 

[SunlitComet]

600 miles on used tranny today and everything seems a okay. On flat land fluids stays under 137°. Gets to about 159°F ops when really worked ******* the hills. And just idling for a hour about 176°F If no radiator fans are running and no airflow thru auxiliary cooler. Cools down again in about 5-10 minutes when motion on the vehicle. Radiator barely gets hot enough from engine coolant to even need to turn on the fans. They went on about four times for 1 minute during the hour. Regardless need more coolers and fan gadgets.

 

[chaingun427]

+1 for e fans, what kind of temp sensor are you using? I'm looking for a dual range to go with my mk8 dual speed fan and Volvo dual relay

 

[sgtpoliteness]

just bought my first Tahoe!

Bought my first Tahoe today! Ran it through emissions first, passed with flying colors. Runs super smooth and shifts even smoother. I'm impressed for 210000 miles.