Best option for my transmission?

[iboughtatahoe23]

My trans is going out at 166k and I’m wondering what’s the best route to take. I don’t have much money. So the cheapest way would be nice. Thanks.

 

[B-train]

1. If you are DIY, then boneyard for cheapest option.
2. Find a local shop that does good teans work and price a rebuild.
3. Put in a CERTA trans with a 3 yr/100k warranty if you plan on keeping the truck for awhile

 

[iboughtatahoe23]

1. If you are DIY, then boneyard for cheapest option.
2. Find a local shop that does good teans work and price a rebuild.
3. Put in a CERTA trans with a 3 yr/100k warranty if you plan on keeping the truck for awhile

Maybe I can’t rebuild a transmission but maybe I can swap them… I heard @NickTransmissions is doing some videos And I’m gonna take a look at those. Investing in some Jack stands. And my neighbor has a Jack.

The car is financed. So I will be keeping it a while. It’s kind of hard to sell with this many miles.

There is a decent transmission in my town with good reviews. I might check them out. Regardless I’m on a budget. I also have to fix my exhaust leak.

 

[NickTransmissions]

@iboughtatahoe23: Check out this thread if you haven't already: https://www.tahoeyukonforum.com/threads/gm-6l80-transmission-information-thread.141927/

 

[Airman68]

Sometimes you can find a reliable, smaller rebuild shop that can do the whole job cheaper than you can. I would agree, finding a descent used trans for a swap is likely the cheapest. I did one on my last silverado, installed parts and labor under $1200. Probelm is, who really knows how good the replacement is. If you have a shop do it, at least they might stand behind it if you buy it from them.

 

[iboughtatahoe23]

I don’t get why it drives fine but really only slips when I first start driving. Then it won’t do it again until I let it sit for a while (over night)

 

[Charlie207]

Do the basics first:

Check the ATF level after the fluid is HOT. If low, add fluid. Is the fluid red or gross & dark?

Then:

Pull the transmission pan, drain all the fluid you can (try to measure how much comes out; makes it easier to add the correct amount).

Replace the filter. Bolt pan back up to transmission.

Fill with new fluid, check level, go for a drive up to 55-60mph to cycle through all the gears and converter lockup.

Repeat fluid exchange and drive until the fluid looks good.

 

[NickTransmissions]

I don’t get why it drives fine but really only slips when I first start driving. Then it won’t do it again until I let it sit for a while (over night)

You need to be clear on exactly what symptoms you are having as there are multiple different types of symptoms documented across all of your transmission-related threads. Hard to know where to begin if we can't understand what's actually happening.

That said, the slipping/chugging when cold is a commonly reported issue and consensus amongst techs, etc is that the root of the problem is in the tune/software.
Specifically the TM and TCC tables where in some vehicles when the trans temp is below a certain threshold (ie cold from sitting), the TCM "overadapts" resulting in a slip at take off that goes away once the trans reaches higher temps, hence why it only happens when its been sitting for prolonged periods of time.

There's a TSB on the issue though it covers later years but may apply to yours as well

Is this the only drivability symptom you have?

 

[iboughtatahoe23]

You need to be clear on exactly what symptoms you are having as there are multiple different types of symptoms documented across all of your transmission-related threads. Hard to know where to begin if we can't understand what's actually happening.

That said, the slipping/chugging when cold is a commonly reported issue and consensus amongst techs, etc is that the root of the problem is in the tune/software.
Specifically the TM and TCC tables where in some vehicles when the trans temp is below a certain threshold (ie cold from sitting), the TCM "overadapts" resulting in a slip at take off that goes away once the trans reaches higher temps, hence why it only happens when its been sitting for prolonged periods of time.

There's a TSB on the issue though it covers later years but may apply to yours as well

Is this the only drivability symptom you have?

I mentioned all my issues I was having in this Transmission thread to you @NickTransmissions

 

[NickTransmissions]

I mentioned all my issues I was having in this Transmission thread to you @NickTransmissions

I would suggest you list them here in bullet form. But its up to you...