Auto 4WD problems!!??

[fondupot]

Yeah, mine was so bad I could feel it in the floor boards and the steering wheel, and my passengers could feel it in their feet as well. Now it seems more like you are describing yours, "nosier" but tolerable.

 

Well i kinda noticed a little shimmy in the steering wheel when in auto for speeds up to 45-50. But by then im usually shifted out of auto back into 2hi and it goes away. It's almost like a wheel being out of balance up front.

[MJFlores]

I had a 2010 Silverado Z-71 4X4, I drove it for 70,000 miles and the only time it wasn't in in 4-Auto was when it was on 4 HI. I always left it in 4 auto and you'd never know it until it was needed. With my 2014, I get a very low moan sound when in 4 Auto if I give it even moderate gas. I leave it in 2 wheel and use 4 HI when it's snowy or when I'm off road which isn't often. The 2014 doesn't work anywhere near what my 2010 did as far as 4 wheel auto. I did take it in and dicuss it with the dealer, and they said it was normal and to only use it when it's really bad out. Personally I think they took a step backwards with this but what are you gonna do.

[Pennywise906]

I had a 2010 Silverado Z-71 4X4, I drove it for 70,000 miles and the only time it wasn't in in 4-Auto was when it was on 4 HI. I always left it in 4 auto and you'd never know it until it was needed. With my 2014, I get a very low moan sound when in 4 Auto if I give it even moderate gas. I leave it in 2 wheel and use 4 HI when it's snowy or when I'm off road which isn't often. The 2014 doesn't work anywhere near what my 2010 did as far as 4 wheel auto. I did take it in and dicuss it with the dealer, and they said it was normal and to only use it when it's really bad out. Personally I think they took a step backwards with this but what are you gonna do.

I agree 100%. I had an '07, '10, and a '12 that would be in 4-Auto from October through May and you would never know it. They took a big step back with the '14 and the supposed "square chain".

[Tracks01]

How about this:

A 2016 Silverado 1500, installed a 5.5" Rough Country lift, easy enough, changed the 342 rear gears to 410's, went perfect.  Changed the front diff to 410's also and noticed a loud groan in 4auto. Took front diff out again and rechecked everything, backlash, pinion depth and preload, all within specs. The truck was quiet before lift kit, after lifted and before gear change it already had a louder 4 wheel auto.  The kit drops the front diff as not to put a bind on the front driveshaft. 

So bottom line, after pulling front diff twice and checking all specs, it still makes noise in 4auto.  Little louder in 4hi but doesn't seem as bad as auto. 

Anyone have this problem?

[cmorrison]

My truck has the push button 4x4 and has the auto feature and today it was driving fine had it in 2 wheel drive mode and It switched t ok auto  out of nowhere and scared the heel out me cause it made back driver side tire make a grabbing grinding noise that doesn't sound good but when I pushed back in 2wheel drive mode its fjne

[GMCustomerService]

On 9/5/2022 at 3:45 PM, cmorrison said:

My truck has the push button 4x4 and has the auto feature and today it was driving fine had it in 2 wheel drive mode and It switched t ok auto  out of nowhere and scared the heel out me cause it made back driver side tire make a grabbing grinding noise that doesn't sound good but when I pushed back in 2wheel drive mode its fjne

This is certainly not what we like to hear, cmorrison.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your truck. To do so, please send an email to [email protected] with ATTN: cmorrison/cmorrison in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s privacy policy, please visit https://www.gm.com/privacy-statement.html.
 
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[mikeyk101]

1 hour ago, GMCustomerService said:

This is certainly not what we like to hear, cmorrison.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your truck. To do so, please send an email to [email protected] with ATTN: cmorrison/cmorrison in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s privacy policy, please visit https://www.gm.com/privacy-statement.html.
 
Privacy Statement | General Motors
Your privacy is important to General Motors. This Privacy Statement addresses the personal information GM collects and how GM handles that personal information.
www.gm.com

 

Are you ever going to provide any actual informational help in these threads or just continue to make these generic useless posts telling the poster to contact a random email? Your posts do not contribute any useful information to any of these threads. My guess is almost no one ever contacts your email as it probably wouldn't do any good anyway. I'm guessing that's why you disappeared and stopped posting for so long. 

[steelerdude15]

On 9/9/2022 at 11:32 AM, mikeyk101 said:

 

Are you ever going to provide any actual informational help in these threads or just continue to make these generic useless posts telling the poster to contact a random email? Your posts do not contribute any useful information to any of these threads. My guess is almost no one ever contacts your email as it probably wouldn't do any good anyway. I'm guessing that's why you disappeared and stopped posting for so long. 

I've noticed these type of accounts on other automotive forums too. I'm not sure if its a bot or a person, but I think the only thing these types of accounts do are get you in contact with a dealer to get stuff fixed.