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Transmission shifting late and sometimes not at all

Tiny
BURNIS DAREN NEWSOME
  • MEMBER
  • 1999 HONDA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
When I first start it up it shifts late as I go, but as the vehicle is driven and warms up and I have to come to a complete stop, say like at a red light, when I go to give it gas to move its throttle to the floor to get it to just move. Now when it does this I can turn it off for ten seconds then it starts up and it goes just fine, but still shifts hard.
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Tuesday, March 7th, 2017 AT 5:01 AM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have a transmission professional scan for codes first. It may be an electrical issue maybe a bad wire etc.
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Tuesday, March 7th, 2017 AT 6:17 AM
Tiny
BURNIS DAREN NEWSOME
  • MEMBER
  • 2 POSTS
I took it to advance auto an auto zone both places used there scanner an only code showed up was just o2 sensor that was it.
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Tuesday, March 7th, 2017 AT 1:45 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You need one that a mechanic uses that goes more into what the auto parts scanners can read. They cannot get everything it may be a can/bus problem that theirs will not read.
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Tuesday, March 7th, 2017 AT 2:56 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,476 POSTS
It could even be that the O2 sensor is causing an issue, what was the exact code?

Plus as HMAC said, the "free" scans they do only read engine/powertrain related codes, not transmission, ABS, SRS or many of the other modules. To read those you need a much better scan tool.
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Friday, March 10th, 2017 AT 6:12 PM

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