1997 GMC Sonoma transmission

1997 GMC SONOMA
205,384 MILES • 4.3L • 6 CYL • AUTOMATIC
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MBSILVA03
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  • 1 POST
When I put my truck in drive are.reverse it jerks hard. When I driving down the road it jerks a tiny bit 2. Do I need a new tranny are can I easily fix the problem without ripping it apart? I also have a vibration when I'm traveling 45 to 55 mph. I'm not sure what it is can u give suggestions.
Nov 14, 2014 at 6:13 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Many things can cause a rough shifting. Has the check engine light come on? Have you checked for trouble codes that could be trans related?
Nov 14, 2014 at 8:22 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
the vibration may be the u-joints in driveshaft so have it checked or look for rust around the seals . If you see rust then replace them. It can also be tire balance. for trans scan for codes then have a trans guy look at it as it may be a valve body problem.
Nov 14, 2014 at 8:23 AM
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