Jump to content

ajs800

Member
  • Content Count

    141
  • Joined

  • Last visited

Community Reputation

16 Good

About ajs800

  • Rank
    Enthusiast

Profile Information

  • Location
    MI
  • Gender
    Male
  • Drives
    2020 Sierra AT4  5.3/10spd

Recent Profile Visitors

2,453 profile views
  1. looks good! Is it possible to show full truck side view? I'm considering the same size with my stock AT4.
  2. I had a "no start" similar to a dead battery off and on for the last 2wks so I stopped to chat with my dealer and they checked it out and said my starter is bad and ordered new one. After reading this info regarding the fuse block I went ahead and tightened all four as they did seem loose. fingers crossed but I'm now on day 3 with no issues...hard to believe this might be the answer as my dealer orders useless parts. They didn't seem to be aware of the fuse block TSB.
  3. what engine tranny combo do you have? I'm considering purchasing the pulsarLT as well but when I run mine in "L9" it still misses/bucks/shutters when lightly accelerating at cruising speeds so in my case, not so sure it's the DFM.
  4. I was hoping my shutter/misfire feel was related to the DFM (as my dealer states) as I'd give the Pulsar a try but unfortunately it is not the DFM. I've been running it in L9, L8 and i still get the shutter/misfire feeling when slightly accelerating while at cruising speeds. 50mph, 60mph, 70mph, etc. once i step into it to downshift it clears up but while cruising with slight load, it's the farthest thing from smooth with a shutter/jerky/lugging type feel while increasing speed. I'm starting to think it's tranny related or engine (while under load).
  5. My '20 AT4 was perfect for the first 12mos and 14k miles...now dealing with tranny (10spd) related issues as well as brake related issues that keep triggering the engine light along with two other unknown engine light moments (according to dealer issue was not stored in computer). Multiple software updates, new torque converter and the tranny still isn't right.
  6. Have you noticed the issue when putting in L9? .my dealer mentioned the same and even my paperwork states that the DFM is to blame but was tested and operating as it should. However, when putting the tranny in L9 it supposedly shuts off the DFM and when doing so mine still exhibits the same problem so it's not the DFM in my case as they state.
  7. Thanks for the update. It sounds like my exact situation. Dealer told me after several test drives that something is not right only to be told a week later after doing multiple things that it's not any better but is now consider "normal". They didn't have much to say when I told them that it didn't do it for the first 14k miles of ownership so how can it be normal? Yes, I'm considering selling mine as well. It sucks as I like the truck but no way am I going to keep something that doesn't operate correctly with only 20k miles.
  8. Which engine/ tranny combo do you have? I am at 19k miles now and have had my 20 AT4 (5.3/10spd) to the dealer three times now with no fix. They have replaced the torque converter(it actually tested out of spec) as it seemed like the likely culprit given the issue, fluid flush, and multiple software updates with no change. They now claim it's normal which is total BS. It was 100% smooth the first 14k miles. Now it from around 40+ any slight "tap in" to the throttle without it downshifting creates a bucking, tranny lug, misfire type feel...kind of similar to an out balance rear
  9. Anyone have anything further on this issue? My 2020 AT4 (5.3) has been doing the same for last 5k miles or so. It just turned 17k miles and my dealer did a fluid change with no change. Definitely feels like a torque converter issue or tranny slipping when lightly accelerating (light load). Truck vibrates, jumps, bucks, chugging feeling, etc. Does it in all gears,including L9, and is really noticeable at speeds 45mph - hwy speeds. Only way to avoid is it to stay heavy on pedal.
  10. I am approaching 15k miles on my '20 Sierra AT4 and over the last few thousand miles have noticed a slipping type feel while under load. It may not be tranny related and more torque converter but between 60-75mph under soft load it tends to jump and has a pretty noticeable slipping feel. I know the 10spd is known to be solid (thus far) but any other common driveline issues with these trucks? I never seem to have luck leaving it in dealers hands without guidance but I might be forced to at this point as I am not finding any common or well known problems when researching.
  11. I am approaching 15k miles on my '20 Sierra AT4 and over the last few thousand miles have noticed a slipping type feel while under load. It may not be tranny related and more torque converter but between 60-75mph under soft load it tends to jump and has a pretty noticeable slipping feel. I know the 10spd is known to be solid (thus far) but any other common driveline issues with these trucks? I never seem to have luck leaving it in dealers hands without guidance but I might be forced to at this point as I am not finding any common or well known problems when researching.
  12. I'm looking to order one soon for my AT4 and I'm curious...are any of these hard folding style tops have a quick release to remove when necessary or are they pretty much on for good without removing all hardware? I have no idea what brand but I have seen some hardtops that have a quick release option to remove when needed but not requiring hardware removal.
  13. same...I couldn't find a used 19 AT4 within 500miles of me for what I paid for my new 2020 from Laura GMC. I typically don't buy new but buying used made zero sense during this time.
  14. I'm currently in the market for my 2020 AT4 and I'm curious...do most of the hard folding covers easily pop off if needed? I have seen one or two models capable of this but unsure if it's a given or are most not easily removable without removing rails, support, etc.?
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.