dspar00a

Mine are in the floorboard and foot pedal mostly. But, not at 1500 or higher. For me, it's 12-1300 and lower. Do you know if there is a fix for this? It has made me consider trading and going to another brand. I love this truck and have always been a GM person. But, I don't want to go get into another truck and it be the same story. Nor, do I really want to have to go get back into another loan if this problem can be fixed.

I have had tons of issues with my Sierra since I have purchased it. I have had vibrations/shift issues from day one and had my truck in the shop 6 times now to always be told what I am experiencing is normal. My issue always comes from switching from V4 to V8 and it is either a slam like shifting up or down into gear or if in V4 and at a constant low speed. The truck acts as if it has shifted up to 6th gear at 35-40mph and vibrates as if it's about to die. My RPM's drop usually below 1,000 and it's just too high of a gear for that range. My frustration that my dealer just refuses to act like there is anything abnormal with it. It's bad when my passengers ask if my truck is fixing to break down. I took so outside clients from my work out to lunch one day and they were all worried we were going to have mechanical issues. I just don't think that's normal and if it is, why would GM want this for their $40,000+ vehicles? My brother has the same truck as I but a 15' and his is 100% more smooth than mine. The only fix I have found is driving in M5. It's like a whole different truck.