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Matt Grz

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  1. Awesome, thank you. Do all of the 5.3’s do it?
  2. So from surfing the forums I’m thinking this rhythmic click that I am hearing at idle every half of a second or so (almost like an old clock) is due to the high pressure DI fuel pump? Is there a fix for it to stop the clicking if that is what this noise is? Thanks. IMG_2109.MOV
  3. Maybe I shouldn’t call them out in the forum. Feel free to PM me.
  4. A 2 degree rear axle shim solved all of my “shudder” issues and she’s as smooth as butter again. I ordered steel shims from WFO concepts and had the dealer throw them in. That GM 2” lift that I had installed ended up throwing off my driveline angles just enough to give me a weird vibration. So happy it’s figured out and fixed. I love this truck again. I hope this information can help someone having similar characteristics with their truck. Thank you all.
  5. Sorry for the delay. It’s the 5.3 liter. Thank you in advance.
  6. Anyone know the part number for the GM CAI? I can’t seem to find it on the gmaccessories web site. Thank you in advance.
  7. Interesting. Mine goes in next Tuesday now. I’m going back to the dealer I bought it from this time. The dealers by me are kind of crappy. I’ll be sure to tell them to try this. Thank you for the info.
  8. Thank you. I’m bring it back next week. If all else fails I’ll have them try this.
  9. It almost feels like you are driving a manual car and didn’t push the clutch in a reasonable time while stopping.
  10. So the dealer replaced one of my U-joints and updated the TCM with the latest calibration. I think the shudder might be a little worse than before. Another person in the forums said he had a vibration and fixed it by replaced the non tapered block in the rear with a tapered block. I notice when I shift into neutral the problem isn’t there. The dealer is blaming the cylinder deactivation and said while in neutral the cylinder deactivation isn’t active which is why it seems to be fixed in neutral. I feel like if this was normal I would have always felt it and not just recently. Wish it was some blatantly obvious thing that could be fixed and make it normal again. Any ideas is appreciated. Thanks.
  11. Thank you very much. I’m going to give this a go if gm can’t figure it out.
  12. Oh man awesome! Thank you very much for this info! I have an appointment with a different dealer next week, I’m going to mention this to him after they look at it. Thank you again!
  13. Well that’s a relief. Thank you. Maybe this shudder isn’t because of the lift
  14. Hey new dude. Do you know if there is supposed to be a wedge on the rear blocks?
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