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Old 08-11-2015, 01:10 AM
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Transmission problems
Please help me, I have a powerful vibration when shifting , only after 5000 rpm , from 4 to 5 gear in D and S and sometimes the transmission can't change from 4 to 5 gear, it stay in 4 gear.
Thanks!
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Old 08-11-2015, 01:11 AM
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I have a 2008 Acura MDX Tech.
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Old 08-11-2015, 03:53 PM
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Originally Posted by manusake
Please help me, I have a powerful vibration when shifting , only after 5000 rpm , from 4 to 5 gear in D and S and sometimes the transmission can't change from 4 to 5 gear, it stay in 4 gear.
Thanks!
Replace the 4th and 5th gear pressure switches. When's the last time the trans fluid was replaced? Did you ever have the D light in the cluster blink?
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Old 08-13-2015, 01:15 AM
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You might want to try replacing the trans Lock-up Solenoid Set.
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Old 08-16-2015, 01:49 AM
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I replaced the trans fluid last month. I never had the D light in the cluster blink.
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Old 03-13-2016, 08:52 AM
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I replaced all solenoids and still have the vibration.
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Old 03-13-2016, 09:25 PM
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Originally Posted by manusake
I replaced all solenoids and still have the vibration.
did you replace the pressure switches? 5th gear one is the 3rd gear one (same sensor for both gears) is under the car and fairly straightforward to get to and the 4th gear one is under the factory airbox area.
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Old 03-22-2016, 11:34 AM
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I changed this switches.
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Old 03-26-2016, 11:14 AM
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Have you had the software update for the transmission? I got a recall notice to have this done a couple years ago.
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Old 03-27-2016, 03:38 AM
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I did the update last year. Can be the body valve?
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Old 03-27-2016, 04:34 AM
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How long are your shifts? Are they quick and crisp or on the slower side? If it's flaring between shifts that could cause a vibration because of the difference in rpms when the clutches are engaging.
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Old 03-27-2016, 05:17 AM
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who did the trans fluid change for you ? What kind of trans fluid was used ?
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Old 03-28-2016, 09:10 AM
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Originally Posted by manusake
I did the update last year. Can be the body valve?
Could be the pressure switch. It may be faulty, and not reading enough pressure to initiate the gear change. They fail often just like the oil pressure sensor does.
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Old 04-27-2016, 10:21 PM
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So what was the outcome of everything that was done?
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