New to me 2016 Tahoe LTZ

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phatz_hatz

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Just bought a 2016 with 80k on it, curious to know what possible issues are to arise Ik the magnetic air ride in the rear was replaced and the vacuum for it was replaced also. I still have my old pig 95 5.7. Just want to know what i should expect and any ways to avoid those issues thank you in advance
 

GMCChevy

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Browse around the forum and you'll get a good idea of issues and preventive maintenance.

I'm similar with vehicles, have a 2017 and still have the old 99 as well.
 

Q101ATFD

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Top two immediate mechanical to-dos:
1. Drain the transmission fluid, change the transmission filter, and replace the factory transmission thermal bypass valve with the improved version (85585333). The original TBV is set to recirculate the ATF until it reaches 194 degrees, and the new one recirculates till 158 degrees. With fluid regularly in the 190s, the torque converter is a ticking time bomb. This can all be done for less than $150.

2. Disable AFM/DOD either by an OBD2 plug-in module, Superchips tuner, or a custom tune. The lifters can get stuck when switching in/out of AFM mode. This won't fix any potential cam roller issues, but will protect the lifters from getting stuck down the road.
 
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phatz_hatz

phatz_hatz

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Top two immediate mechanical to-dos:
1. Drain the transmission fluid, change the transmission filter, and replace the factory transmission thermal bypass valve with the improved version (85585333). The original TBV is set to recirculate the ATF until it reaches 194 degrees, and the new one recirculates till 158 degrees. With fluid regularly in the 190s, the torque converter is a ticking time bomb. This can all be done for less than $150.

2. Disable AFM/DOD either by an OBD2 plug-in module, Superchips tuner, or a custom tune. The lifters can get stuck when switching in/out of AFM mode. This won't fix any potential cam roller issues, but will protect the lifters from getting stuck down the road.
Any suggestions on brand for the TBV? Already purchased a OBD2 AFM disabler. Hate when i feel it get sluggish in V4.
 

Q101ATFD

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Any suggestions on brand for the TBV? Already purchased a OBD2 AFM disabler. Hate when i feel it get sluggish in V4.
OEM GM complete bolt-on unit, PN 85585333
PPE makes a complete bolt-on unit, PN 125068000 - I like that it's got a service plug with a magnet
TransGo makes a kit that replaces just the innards, PN 6L80-CLR-BYPASS
You can watch Youtube videos on "flip the pill" technique, free. There's some question on whether this is a proper fix or not.

I went with the OEM replacement and found one on eBay for $80. Youtube video that takes you step by step of the installation of a complete unit:
 

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