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Tranny problem?

Tiny
MPLAIN
  • MEMBER
  • 2003 BUICK RENDEZVOUS
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 170,000 MILES
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.
Friday, January 15th, 2016 AT 6:46 AM

6 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure with a gauge auto parts rent it.
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Friday, January 15th, 2016 AT 6:56 AM
Tiny
MPLAIN
  • MEMBER
  • 24 POSTS
Ok. Thanks a bunch. We were questioning if it's a tranny problem.
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Friday, January 15th, 2016 AT 7:07 AM
Tiny
HMAC300
  • 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.
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+1
Friday, January 15th, 2016 AT 7:50 AM
Tiny
MPLAIN
  • MEMBER
  • 24 POSTS
Ok. What exactly are we looking for with the fuel gauge?
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Friday, January 15th, 2016 AT 9:25 AM
Tiny
HMAC300
  • 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
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Friday, January 15th, 2016 AT 9:47 AM
Tiny
MPLAIN
  • MEMBER
  • 24 POSTS
Ok. Thank you. We'll try that.
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Saturday, January 16th, 2016 AT 12:31 PM

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