Question about 2003 Toyota RAV4

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Car ceases to accelerate after about 15 to 20 minutes drive.

My car had an accident and was repaired, the automatic transmission fluid was drained and refilled because the technician claimed it was necessary to clean the transmission system. Since then the car ceases to accelerate after a 15 to 20 minutes drive.

I have been told by someone that a wrong fluid was used. I have now purchased the right Toyota transmission fluid but will like to know if

1. the gear box must be opened to clean the gear oil filter before refilling with the right oil?

2. Do I just drain the wrong oil and refill with the right one?

3. Will refilling the right oil stop the problem?


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  • 4 more comments 
  • pnuig Dec 04, 2008

    Ok will change the fluid immediately, thanks.

    Could the introduction of wrong fluid also be the reason why a strange vibrating noise comes up when car is started or what esle could be the cause?

  • pnuig Dec 07, 2008

    Very helpful

  • Toyota Ed May 11, 2010

    DId you get the ATF flushed; is your car OK?

  • Toyota Ed May 11, 2010

    The vibration is most likely an engine mount/transmission mount out of place; casuing the exhaust pipe to vibrate.

  • Toyota Ed May 11, 2010

    Just draining the old fluid is not going to cure this. You need to get what is called a Transmission FLUSH. If you just drain the pan area, you still have 3-4 quarts of the wrong oil in the car that does not drain, ie the torque converter, the cooler and the cooler lines. What you need to do is take it to a Toyota dealer that can perform a complete transmission flush with the proper T-4, and then take the bill to the guy who put the wrong fluid in your transmission.

  • Toyota Ed May 11, 2010

    You need to have genuine Toyota Automatic Transmission fluid "Type T-4" in your transmission.

    Nothing else.

    The transmission CAN be damaged by introducing incorrect fluid into it.

    Get the transmission fluid changed ASAP. Then get back to me and let me know if the issue is any better.



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When it reaches its top speed of about 15 to 20 mph does it rev out or does it stay in that gear?

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