Hummer h2 accelerator pedal vibrates
#11
It's not the drive shaft. It feels like something might be lose between the engine and the pedals. I'm gonna get under the car soon and have a good look around. Possibly the heat shield or something around there. Il keep you updated if I find anything.
#12
It happens a little more noticeably at higher speeds. It doesn't do it in park either for me. I've tried it in N at high speed and it doesn't do it. It happens all the time over 30mph. As soon as i release the pedal, I feel the vibration with my foot. Never while accelerating, only when I let off. It only lasts about a second
#13
Exhaust vibration heat shield plates can carry through the frame and resonate in places. Check if any exhaust pipe or muffler from engine to the back is lose. I have an audible vibration from my H2 exhaust I can hear on acceleration. It's the exhaust cause I had the exhaust on my excursion switched over to dual and that was when I heard the same noise. So in my case it's from either the muffler or pipes.
#14
I also have an 05 with the same issue. Ive had this issue since truck hit 50k miles. I am now at 89k miles. I just recently replaced the torque converter while fixing rear main seal but that did not help this vibration. I get it bet 30-40 mph. Its not the tires nor the rotors since I've changed both since I hit 50k miles.
Will update you all once I've changed the diff mount.
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