4.0

definitely annoying
Typical Repair Cost:
No data
Average Mileage:
75,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2009 GMC Sierra 1500 drivetrain problems

drivetrain problem

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2009 GMC Sierra 1500 Owner Comments

problem #1

Dec 202014

Sierra 1500 ZR1 5.3L

  • Automatic transmission
  • 75,000 miles

A D V E R T I S E M E N T S

vibration of truck at 20 mph on a steady pull and higher

The truck started this vibration few months back. I took the truck to a reputable GM person and he felt the baffles inside the muffler were loose. I had the muffler replaced at a muffler exhaust company day after new year. The roads were bad from an ice storm so I did not notice the vibration until later in the day when I went out for errands. I went to a GM dealership and they took it for a test ride and said it was the exhaust because the replacement muffler's ports did not meet the OEM specs. I found an orginal muffler and had a custom exhaust shop install it. They could not find any rubbing, movement on my trucks exhaust system. After leaving the shop the vibration was still there. I went to a transmission shop to have them look at it and they could not see anything to cause this problem..I went to another GM dealer and a mechanic felt it was a tight U joint. Well that was not it. I was told I would have to live with the problem.Nobody has a clue what the problem is. I like my truck and really can't afford to buy a new one. Sounds like the vibration is coming from the front also .All checked the manifold and it seems tight also. No one thinks it's the transmission. Any ideas ?

- Jerry T., Greensburg, PA, US

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