Jump to content

rlsray

Member
  • Posts

    4
  • Joined

  • Last visited

Profile Information

  • Location
    Upstate NY.
  • Gender
    Male
  • Drives
    2014 Silverado Dbl Cab Z71 4x4

rlsray's Achievements

New Member

New Member (1/11)

2

Reputation

  1. My 2015 Dbl Cab z71 4x4 just started showing this too at 8k miles only on passenger side.. Tungsten color.. I don't have a bed cover , just a bed rug, never towed more than 700 lb 2 place sled trailer, never hauled more than 2 cans of garbage in the bed.. Only hand washed. Mine seemed to appear after winter. I live in the snowbelt of upstate ny. Bodyshop was going to call GM and see what the course of action is. Has anyone had luck with the PDR ? This seems like a band aid. Not sure i want a panel replaced either. Total BS.!! I think its caused by thermal expansion and contraction. Perhaps the top of the box q panel isn't expanding and or contracting at the same rate as the lower panel.. These panels are paper thin "mega ultra super high strength " steel. Either way its garbage ! We got a 8 inches of snow Sunday and Monday and I swear it got worse within last 2 days and the truck sat in the driveway both days with the snow on it..
  2. These trucks are frustrating. Want to believe in GM but losing faith. too many issues and too sensitive of a design... I had my 2014 Dbl cab z-71 trade assisted swapped in 8/2015 after 10 tires and a new ring and pinion. . Drove 8 couldn't find a smooth one, waited till the next truck load came in at the dealer with the color i wanted. Drove it and it was noticeably smoother. my 2015 dbl cab is noticeably better, and pretty smooth on the highway. smooth ones are out there. Last week I towed my 400 lb sled on a 10' aluminum 2 place open sled trailer. It vibrates bad from 50-60 mph. Cant believe it, its annoying type of vibration too with 2-3 seconds vibration then smooth for 2-3 seconds, then repeats all over again. Brought the sled and trailer to the dealer, today. went for a test ride with tech to show exactly what is going on.. He agreed with the vibration . get a call this afternoon they couldn't find anything wrong.. Pico scope shows okay,!! I asked for the scope reading. The time trace clearly shows the harmonic in the raw signal capture with the repetitive peak accelerations,, however the tech picked the smoothest portion of the time capture to perform the harmonic analysis of the raw data to come up with the pico reading. They had the nerve to tell me at least mine was better than the new lot truck they towed with to compare mine against. I thought i had a good truck , i wont accept this as normal. I'm tired with this and the looks i get as a customer at the dealership. I had enough repair logs and attempts to push the lemon law, and win, with my first truck and i settled with this trade assistance, hind site i should have gotten 100% of my money back an taken the 2014 lemon off the market! . I'm pretty sure this vibration is different than most but the dealership seems to give up and forget how to diagnose because of a garbage pico measurement. Total bs.
  3. I've been following this forum since I bought a new 2014 4x4 double Cab Z71 in Nov.. At 500 miles this truck didn’t feel right. . . My truck has been in for road-force at least 5 times with probably 8 different tires in 10K miles. It had the Ring and pinion replaced and the steering wheel shake under de-acceleration went away, but I agree these trucks are very-very inconsistent. There are times my truck is like glass, then there are times it’s a pile of garbage, I drove at least 8 new 2015 1500 in the last month looking for a smooth one on the highway. and now that I’m looking for it . I’m Still looking for one with a smooth ride. some shake the wheel, some shake the floor some shake the seat some do all three,. In my opinion, the problem is in the new cab body mounts, too stiff of a seat and headrest, and Stiff rancho shocks (too much high speed compression and rebound dampening)all coming together for a problem and annoying ride. Maybe the use of “high strength steel” in the cab structure shifted the resonance of the truck cab too. I’m sure the marketed high strength steel term wasn’t used in conjunction with equivalent metal thickness to give us a stronger cab than the past designs but instead used with thinner sheet metal to reduce weight and cost with the intent of having similar strength. The fact that the 2500’s have similar issues knowing they use the same cab, cab mounts and seats but different frames, engines, axles and tires and rims seems to hold some merit it’s not drivetrain vibration but ineffective vibration isolation from normal driveline and road vibration. The fact that GM is making the dealers roadforce balance tires to less than industry standard specs. To minimize excitation, really solidifies the fact the isolation in the body mounts and cab is garbage.. In theory, if the new hydraulic ( compression and rebound ) body mounts and vibration control (based on all the marketing hype) are in fact better shouldn’t we be able to allow a higher level of tire imbalance and achieve a similar ride to the old body style truck??. My truck shakes when cruising at high way speed 70-75 down the highway on sweeping turns and then the annoying vibration seems to stay.. I really think these body mounts don’t isolate the higher frequency road stuff out and this new lateral mount is allowing a strange shifts in cab to frame alignment. It seems like the longer the highway trip the worse the vibration.. My 2014 in V4 mode is significantly more noticeable than the 07 truck at highway speeds and low speed. Again pointing to the body mounts, shouldn’t the active fuel management V4 mode be even less noticeable then previous designs if the cab isolation control has improved. [From the GM marketing bulletin http://media.gm.com/media/us/en/chevrolet/news.detail.html/content/Pages/news/us/en/2013/May/Silverado-May-5/0505-silverado-body.html Shear-style body mounts enhance comfort, smoothness New, shear-style body mounts on the 2014 Silverado significantly improve stiffness and contribute to a smoother ride. They also provide a more secure and consistent attachment of the body to the frame, for greater build quality and improved safety performance.The new body mounts are bolted to the frame and provide dampening in both compression and rebound, meaning the tension generated during compression is released in a controlled manner, similar to a shock absorber. The previous hydraulic body mounts worked in compression only. In addition, the new shear-style mounts are significantly stiffer than the mounts used in the previous truck, helping to reduce vehicle shake.] It’s actually comical to watch the chevy marketing videos on their website regarding the frame and body mount design and testing and, to hear all the BS about road comfort and vibration isolation improvement. The NVH group dropped the ball. I wish I could get the ride quality and consistency of my 07 extended cab z71 had. I don’t want a truck that requires absolute perfection in tires, rim mounting, tire balance , prop shaft balance, pinion angle , force vectoring, to keep my water bottle, coffee, pant leg, fingers, Dorito’s bag, iphone cable, computer bag, grocery bag, tool bag, cup holder change and my kids head from that annoying shake, perfection in mass production doesn’t exist but this truck design clearly didn’t take into account variation in the design and mfg process.. I’m not a fussy person just pissed this truck is a worse riding experience than my older Silverado’s.
×
×
  • Create New...

Important Information

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