2010 Suburban with Transmission problems

[Abdullahredwan]

Hello everyone
This is my first post here on the forum, so please excuse me if this is not the right place to post.
Long story short, bought a used 10 suburb with 110k miles on it 6 months ago. Upon inspection, i noticed that the transmission fluid was brand new and the previous owners assured me that he kept maintenance and service a priority.
The issue started a month or so back, the car would jerk when shifting, sometimes also taking longer than usual and having to rev the engine pretty high in order for the tranny to shift. Took it to a shop, had it diagnosed. The only code in the engine appeared to be a p0573 (brake switch)
The transmission control module came back with 4 codes: P0842, P0872, P0877, P0898.
The shop wanted to tear apart the transmission and gave me an estimate of around 1.5 to 3k USD
Figured I would ask here first, the last thing I would wanna do is start tearing things apart. Also, can the faulty break switch be causing all this stuff?
Any feedback is greatly appreciated!

 

[petethepug]

Welcome from SoCal, where ya at?

Not the brake switch doing that but do verify your brake lamps are working.

You’ve got enuf to go back to the seller and let em know you took the truck to the same place he did and they recognized the Burb and pulled up the following codes.

Play poker with him. He gotcha on a known bad trans after the trans service he did, didn’t fix it.

Ask for 1-$1.5k back or a promise note from him on the spot already written out for him to sign or you’ll call your brother in law who is a cop.


Again, play poker and see what happens. You’ll need about 3-$4k when it’s all said and done.

From there give yourself a pat on the back because you’re good for about 100k miles on the new trans in one of the most highly sought after, otherwise reliable trucks.

 

[Abdullahredwan]

Welcome from SoCal, where ya at?

Not the brake switch doing that but do verify your brake lamps are working.

You’ve got enuf to go back to the seller and let em know you took the truck to the same place he did and they recognized the Burb and pulled up the following codes.

Play poker with him. He gotcha on a known bad trans after the trans service he did, didn’t fix it.

Ask for 1-$1.5k back or a promise note from him on the spot already written out for him to sign or you’ll call your brother in law who is a cop.


Again, play poker and see what happens. You’ll need about 3-$4k when it’s all said and done.

From there give yourself a pat on the back because you’re good for about 100k miles on the new trans in one of the most highly sought after, otherwise reliable trucks.

Unfortunately, that won’t work where I live. I’m in Dubai and people here aren’t quite as “forgiving” to say the least as people in the US
So, I’m guessing the trans is toast, huh? I honestly have no idea how big or small of a job this could be, but from what you’re saying, the transmission needs replacement?

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

@NickTransmissions is our resident transmission expert, and he will chime in with his thoughts and perspectives. Can you give us more details (trim, motor, transmission) on your truck?

 

[NickTransmissions]

Hello everyone
This is my first post here on the forum, so please excuse me if this is not the right place to post.
Long story short, bought a used 10 suburb with 110k miles on it 6 months ago. Upon inspection, i noticed that the transmission fluid was brand new and the previous owners assured me that he kept maintenance and service a priority.
The issue started a month or so back, the car would jerk when shifting, sometimes also taking longer than usual and having to rev the engine pretty high in order for the tranny to shift. Took it to a shop, had it diagnosed. The only code in the engine appeared to be a p0573 (brake switch)
The transmission control module came back with 4 codes: P0842, P0872, P0877, P0898.
The shop wanted to tear apart the transmission and gave me an estimate of around 1.5 to 3k USD
Figured I would ask here first, the last thing I would wanna do is start tearing things apart. Also, can the faulty break switch be causing all this stuff?
Any feedback is greatly appreciated!

All those TCM codes indicate temp sensor & pressure switch failures - the trans temp sensor and pressure switches are integrated into the TEHCM (transmission electronic hydraulic control module) so that, at minimum, needs to be replaced. You may or may not have clutch damage as a result of the TEHCM going bad. Drop the pan and see what's at the bottom...If the fluid is dark, has burnt clutch material or metal, put the pan back on with a few bolts and yank it out for overhaul.

Expect to pay somewhere between 4-5k for the rebuild plus whatever the shop wants to take it out and put it back, fluid, line flushing, cooler cleaning and fast adapt relearn

All this assumes you have a 6L80. If you have a 4L60E, costs will be a lot less.