Newby here 08 Denali Yukon/Lots of questions

[Chevyboi089]

Wassup everyone!! I searched the form knowing it would be one upon buying this truck. I just picked up a 08 Denali 140,000 miles for 9k. I’m in Need of tips and advice. I just got new tires on, a tune up and front pulley belt. New trans lines, trans filter and air filter i had it a week already i love it!!

My driver heated seat don’t work but the passengers do!?

what’s with the air bag code!?

my Rear shocks need to be replaced should i convert them to regular (to save money) or replace air ones??

Inner door handle is peeling where can i get another?

what tunes or delete should be recommended for the 6.2 i got!?

 

[OR VietVet]

Welcome to the forum from Oregon. More pics please.

The air bag code is likely the front sensor. Lots of thread info here about that.

 

[avalonandl]

Seat heater is likely a fuse or the module. Air shocks from Rock Auto are about $ 400 - go for Arnott's.

 

[89Suburban]

Wassup everyone!! I searched the form knowing it would be one upon buying this truck. I just picked up a 08 Denali 140,000 miles for 9k. I’m in Need of tips and advice. I just got new tires on, a tune up and front pulley belt. New trans lines, trans filter and air filter i had it a week already i love it!!

My driver heated seat don’t work but the passengers do!?

what’s with the air bag code!?

my Rear shocks need to be replaced should i convert them to regular (to save money) or replace air ones??

Inner door handle is peeling where can i get another?

what tunes or delete should be recommended for the 6.2 i got!?

View attachment 265813

I got these door handles last summer and they are really nice.

https://www.amazon.com/gp/product/B01FTMTCBG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[Big Mama]

Welcome to the forum from Virginia. Keep the rear shocks like they are. If the seat still moves and memory 1 and 2 work most likely a fuse or the element. If not it’s likely the control module. I just went through this. Invest in a Tech2 it’ll help fix all of these issues and more.

 

[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.

More pics, please.

You've already been receiving great advice from folks here, and others will chime in.

Rear shocks - Depends on whether or not you plan to tow any sizeable trailers. The air shocks are great for automatically leveling the truck, when a sizeable trailer is attached. My truck was already converted to coil over shocks and new springs in the rear, before I purchased it, and I tow a light trailer (~1100 lbs.) with no noticeable sag in the back end.

6.2 mods - The AFM delete is recommended, and it can be accomplished by a tune. I have a custom performance tune for 93 octane gas from Black Bear Performance (~$600), and it make a very noticeable difference for both the engine and the transmission, as the tune will modify both the ECM and TCM. Give @BlackBearPerf a call, and discuss your needs with them.

Troubleshooting - I recommend that you seriously consider purchasing a Tech 2 scanner/programming tool (~$350), as you will find this tool to be invaluable, if you do most of your own maintenance and repairs. It will pay for itself, after your first troubleshooting situation.

 

[Geotrash]

6.2 mods - The AFM delete is recommended, and it can be accomplished by a tune. I have a custom performance tune for 93 octane gas from Black Bear Performance (~$600), and it make a very noticeable difference for both the engine and the transmission, as the tune will modify both the ECM and TCM. Give @BlackBearPerf a call, and discuss your needs with them.

Just one small clarification here to make sure the OP doesn't go down the wrong hole. His engine doesn't have AFM, but I do agree with getting a Black Bear tune for better performance and shift points.

 

[mikeyss]

You definitely do NOT have AFM, so don't worry about those issues. Blackbear is awesome at tuning your L92 Non AFM motor, and they will make the trans shift better. I recommend replacing your rear shocks with OEM units from RockAuto, don't but the cheaper aftermarket ones. You got a really good deal on your Denali.

 

[Chevyboi089]

Wassup everyone!! I searched the form knowing it would be one upon buying this truck. I just picked up a 08 Denali 140,000 miles for 9k. I’m in Need of tips and advice. I just got new tires on, a tune up and front pulley belt. New trans lines, trans filter and air filter i had it a week already i love it!!

My driver heated seat don’t work but the passengers do!?

what’s with the air bag code!?

my Rear shocks need to be replaced should i convert them to regular (to save money) or replace air ones??

Inner door handle is peeling where can i get another?

what tunes or delete should be recommended for the 6.2 i got!?

View attachment 265813

Wassup everyone!! I searched the form knowing it would be one upon buying this truck. I just picked up a 08 Denali 140,000 miles for 9k. I’m in Need of tips and advice. I just got new tires on, a tune up and front pulley belt. New trans lines, trans filter and air filter i had it a week already i love it!!

My driver heated seat don’t work but the passengers do!?

what’s with the air bag code!?

my Rear shocks need to be replaced should i convert them to regular (to save money) or replace air ones??

Inner door handle is peeling where can i get another?

what tunes or delete should be recommended for the 6.2 i got!?

View attachment 265813

Welcome to the forum from Oregon. More pics please.

The air bag code is likely the front sensor. Lots of thread info here about that.

I will take more pics tomorrow. Yes I’m amazed at all the responses i feel good already. You guys are so welcoming i appreciate that, yes i will be a active member.

 

[Chevyboi089]

Seat heater is likely a fuse or the module. Air shocks from Rock Auto are about $ 400 - go for Arnott's.

I think it’s a fuse i got my truck back and when i auto started it the heated seat was on, but still no light on

 

[Chevyboi089]

I got these door handles last summer and they are really nice.

https://www.amazon.com/gp/product/B01FTMTCBG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Thanks I’m ordering them now

 

[Chevyboi089]

Welcome to the forum from Virginia. Keep the rear shocks like they are. If the seat still moves and memory 1 and 2 work most likely a fuse or the element. If not it’s likely the control module. I just went through this. Invest in a Tech2 it’ll help fix all of these issues and more.

Where did you buy yours from

 

[intheburbs]

My driver heated seat don’t work but the passengers do!? Fuse or the switch most likely culprits.

what’s with the air bag code!? Need more info, but front crash sensors are prone to corrode. I just replaced both in my 09 Sierra Denali

my Rear shocks need to be replaced should i convert them to regular (to save money) or replace air ones?? Can't help on this one

Inner door handle is peeling where can i get another? You can buy off Amazon. Make sure you get the right trim color. You buy the handle assembly, not just the handle.

Click Here

what tunes or delete should be recommended for the 6.2 i got!? You don't need a delete because you don't have AFM. Be careful with tuning. I tuned my 6.0, but not my Denali because I frankly don't trust myself. The truck is plenty fast in stock form. If you must, I'd recommend Black Bear.

 

[donjetman]

Chevyboi89/Dennis,
Here's a thread I started here last April about everything I've done to our 07 Yukon Denali.It may be helpful.
https://www.tahoeyukonforum.com/threads/what-ive-done-to-my-yukon-denali-the-past-18-months.118329/

 

[Chevyboi089]

Welcome to the forum from Oregon. More pics please.

The air bag code is likely the front sensor. Lots of thread info here about that.

 

[Chevyboi089]

I got my truck back from the shop my mechanic didn’t get to fix it yet, but when i auto start it the heated seat comes on!?

 

[Big Mama]

I got my truck back from the shop my mechanic didn’t get to fix it yet, but when i auto start it the heated seat comes on!?

Yes Sir, pretty cool right? It’ll turn on the AC too when it’s hot out.

 

[wsteele]

Only thing to add to above is my inner door handles (2007 Yukon SLT) were replaced by the dealer maybe 2 years ago now, no cost to me. Seems GM decided the peeling could result in cuts to the hands of the users, so there is a recall/repair action to replace them. You might check with your local GM dealer, you might get them replaced for free.

 

[swathdiver]

Wassup everyone!! I searched the form knowing it would be one upon buying this truck. I just picked up a 08 Denali 140,000 miles for 9k. I’m in Need of tips and advice.

Buy a Tech-2, it will pay for itself in the first repair or two. Restoring the rear suspension to original condition will give you a superior ride. Welcome!

 

[Chevyboi089]

Only thing to add to above is my inner door handles (2007 Yukon SLT) were replaced by the dealer maybe 2 years ago now, no cost to me. Seems GM decided the peeling could result in cuts to the hands of the users, so there is a recall/repair action to replace them. You might check with your local GM dealer, you might get them replaced for free.

Thank you I’ll look into that