Tranny problem?

2003 BUICK RENDEZVOUS
170,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MPLAIN
  • MEMBER
  • 24 POSTS
While driving everything seems fine until 55 mph and then the car feels like it's not wanting to go but if you let up on the gas and push it again it is fine again.
Jan 14, 2016 at 10:46 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
scan for codes and check fuel pressure with a gauge auto parts rent it.
Jan 14, 2016 at 10:56 PM
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MPLAIN
  • MEMBER
  • 24 POSTS
Ok. Thanks a bunch. We were questioning if it's a tranny problem.
Jan 14, 2016 at 11:07 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
well it very well ma y be but it could be a wiring issue not letting the tcm work correctly with trans.
Jan 14, 2016 at 11:50 PM
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MPLAIN
  • MEMBER
  • 24 POSTS
Ok. What exactly are we looking for with the fuel gauge?
Jan 15, 2016 at 1:25 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
because it can be a low fuel pressure from your description if engine doesn't run right it effects the trans. 52-59psi key on only
Jan 15, 2016 at 1:47 AM
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MPLAIN
  • MEMBER
  • 24 POSTS
Ok. Thank you. We'll try that.
Jan 16, 2016 at 4:31 AM
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