Transmission is shifting rough in first gear and second gear

2000 GMC
115,000 MILES
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DONNA UHLIR
  • MEMBER
  • 1 POST
After driving for approximately 30 minutes the car begins to shift roughly at 10 miles per hour and again at 20 miles per hour. I recently had the transmission serviced and the filter changed.
Nov 8, 2011 at 3:08 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Do you have a check engine light and when was last tune-up? Badly needed tune-up will affect the transmission operations-Could be a shifting solenoid sticking,valve body and governor and throttle pressure problems
Nov 8, 2011 at 3:12 PM
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