found a TSB, PI1513F, found it here, from a post a while ago using google. i found my issue by a low reservoir, well lower than it should be, noticed when i was doing my intake. i marked it, and kept an eye on it. warranty was going up in 60 days. checked it 4 weeks after my mark, was 1/2" lower. flashlight, found it. driver side top corner. researched, found the TSB luckly, powertrain up in 30 days now. called local dealer, took me right in, replaced tstat housing and radiator under warranty. check your trucks guys. 1500, silverado, 2016, 5.3, 34k miles.
i did police brake rotors and performance police ceramic pads for my 2016 silverado. quoted from description of the pads "ACDelco Gold Enhanced Performance Severe Duty Ceramic Brake Pads" "These brake pads are specifically designed to meet the demands of police and fleet vehicles." -rockauto, just entered in my truck specs as i didnt want fitment issues, especially since GM offers police packages for silverados now. -you dont need the "tahoe" police brakes, the part numbers are different, not sure on the actual difference though, the pads i ordered are the ceramic performance pads. they are not beveled at the edges, i have full pad contact on the rotor, like the tahoe brakes. -i didnt want semi or metallic due to noise potential, OEM brakes are cermaic. -copy pasted from my order receipt. ACDELCO 17D1707SDH ACDELCO 17D1367ASDH ACDELCO 18A1705PV ACDELCO 18A81032PV figured id share, as i did a fair bit if research because i couldnt easily find info prior to my brake job.
very happy with my tune from blackbear. truck runs and drives like it should. holds gears longer, no lugging around corners, stop light to stop light shifting 4 gears etc. it drives like a truck should. i run it on 93 all the time, regardless of the tune, it has 11:1 compression, and i didnt want any ****** on timing even with the stock tune. the tcm tune is spectacular in everyway. you dont need to hot rod around or have to hot rod around to have a tune. a tune can give you more power yea. but the drivability is what is really noticed. a tune is worth it in every way. when i had mine tuned, i told them what i wanted, a good all around 93 tune and their popular and reliable tcm tune. i didnt say i wanted to burn tire, race, etc. i dont drive like that. but i can tell you, it does burn tire way better and get up and go 10x better.
I have and run 93 and tcm tune from bbp. it got rid of my clunks, weird shifts, and shifting too fast and lugging. My truck drives how it should. I brought it to the dealer for an oil change and rotation, pulled the tune off the night prior, and I hated it. Makes you realize how nice the drivability is tuned.
I used to get a clunk now and again. Ever since I had it tuned with efi live, it’s gone 100%. What a better running truck all around. It’s all in the TCM programming by GM. this isn’t a post to get your trucks tuned, but this took care of the clunks completely that I was having. 2016, 6l80
6 speed didnt know they had 8 speeds in 2014's...you might want to update your signature, and post more clearly what tranny your talking about in the original post, you may have some better results ? i doubt you have a crank issue...that would be the final step, but its most likely the gm parameters in how the tranny shifts, as i said above, i have 0 clunks now with my 6 speed after my tune. its butter. hasnt the 8 speeds always shifted like ****** and had more problems than the 6's? tuning might be your only way out, or going to a different brand truck. goodluck
i just got tuned by black bear, and all down shift clunking is gone. what a difference on shifting, engine, etc. totally new truck. what my point is, tuning can fix the clunks. the way GM has programmed these trucks is asinine. too many up shifts to quick, constant lugging, wanting to increase fuel economy to gov regulations. i dont think its setup correctly/synchronized correctly with tranny and engine setpoints. but hey, im not an engineer. 30k miles. my warranty is up in 2 months anyway.
I’ve lived enough so far pal, you don’t know me. I’m not stooping down to your level of intelligence. go complain that you bought a defective truck on Facebook for attention. This is a forum for help, and feedback and learning new information. You came here with the intent to complain and to look for attention and it clearly shows with each additional post you make. Also, goodluck with your lawsuit. If you act the way you act in here, goodluck in court.
So you came here to complain and look for attention. Your right. You shouldn’t have to replace with ls7 lifters. But this issue is common since they started doing this. Just as all the issues with diesels and their exhausts, to meet epa guidelines. Blame the epa for increasing the requirements for fuel economy. ls7 lifters are bullet proof. Do it once and be done if it happens again. Or sell the truck
im 27, and even i wouldnt buy anything with 100k unless it was an LBZ duramax. my father has a 2016 LML, and they have issues too. especially with the DPF clogging all stock. these motors are good. and so are the trucks. i just put efilvie on my 2016 5.3 last week, im at 30k miles, disabled DOD, and if i drop a lifter, im going full LS7 lifters and a cam. do it once and be done, or dump the truck.
with 11:1, no matter the displacement, you should be running high octane. i dont care if its direct injected or if it has a carb. these motors will sense knock, and ****** your timing to compensate for shitty fuel. same goes with a honda, and this technology has been out there for a very long time. to get the most out of your 5.3, have less ******, run 93. i bought my l83 and it had regular in it. the first time i filled up, i ran 93, and what a difference in power and throttle response it had by the second tank. and to say that the 6.2 NEEDS higher octance more than the 5.3 is not that smart. both are high compression motors, sure the 6.2 has .4 more compression.... and that 6.2 is put in alot of higher end SUV's that soccer moms drive, do you think they run 93 or even 89? i highly doubt it. it just retards the timing, and itll run just fine on 87. but at 87 on either the 5.3 or the 6.2, your not getting the proclaimed HP of the motor nor are you getting the full performance as advertised.
shell out more $, and get efilive, blackbear. those canned tuners are trash. get a diablo intune 3 if you want to save some money, then get a custom tune from lew...but were only talking a couple hundred....
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