agency12

Will you do $60.00 shipped to 75013?

Alec, happens when starting up on level ground at random times in 2wd. Have not had the chance to use the 4wd so we can take that out of the equation.

I have a 2018 sierra 4X4 with 9300 miles on it. At times, when I start the engine, I feel a cluck like something in the transmission is engaging when it is in park. Has anyone else had this happen? It happens periodically and not all of the time so I have a hard time reproducing this when I take it in.

I bought a 2018 GMC Sierra back in November of 2018. My free OnStar subscription has ended as of today. I am being told that if you do not re-new that you lose all access even the use of the connect app for remote start and remote unlock as it is no longer free for 5 years. They now want to charge $9.99 a month for the basic plan that used to be free for 5 years. Anyone else had this issue?

Is this only availible on the 2019 models?

Stay away from the backflip MX4. Put one on my 2015 Silverado and have had issues with leaks from the start! Took it back and they put a new one on and still leaking.

any updates?

No I do not have a bedliner I have a spray in Linex. I did install the bulkhead seal as directed. I contacted Bak Industries and provided them with photos and video of the leakage. They are providing me with a replacement so we will see what happens once I install the new one.

Any updates?

I just installed my new Bakflip MX4 on my 2015 Silverado. Love how it looks but leaks terribly at the front of the bed in each corner as well as on the sides of the tailgate. I have also noticed leakage over the wheel wells as well as the seam in the first panel. I contacted Bak and provided them with a video of my issue and they have agreed to send me a replacement as they stated that they commonly see slight water intrusion by the tailgate but the other leakage they state they have not seen. My fear is I will get the new one and have the same issues. I followed the manufacture directions so kind of stumped why we are all having these issues. Its also a little strange that all the install video's you see for the MX4 are all on other manufactured trucks other than the 2014-2017 Chevrolet Silverado.

I've had my 2015 in 3 times for this same issue. First time they added high temp lube to the flapper valve. This worked for a couple of day's and then the squeak came back. Took it back at my next service interval and they replaced the entire exhaust system with the so called updated part number for the flapper valve. The noise went away but returned 2 months later and when I took it back they stated that GM was aware of the issue but they do not have a fix for it yet. This is the same response I got for the leaf spring noise! They said the only direction that GM gave them is to use the high temp lube on the flapper until a fix was released. WTF!!!

Anyone out there recommend a good injector cleaner for these motors?? Did not know since they are direct injection if Lucas injector cleaner would be suffice or harmful?? Thanks!

No, did not have a torque wrench so I just tightened all mounts as tight as I could get them.

Last night I tightened up both rear shackles as well as both rear shocks. I was surprised how loose the shackles were and tightened the heck out of them. I also sprayed lubricant on the delrin pads and when I test drove the knocking / clunking is still there! GM needs to find out what is causing this and fix it right!

Yea, I had my 2015 in yesterday at the dealer and when I took the service advisor on a ride he knew exactly what it was. He said that GM is aware of the issue but they do not have a fix for it yet. He said they (the dealer) has had many complaints on this and they have escalated this issue to the zone and district managers. So I guess we are just out of luck until GM resolves yet another issue on these trucks!