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The mkiv Supra Owners Club

Hesitant auto gear change help


brom86

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Has anyone experienced the reverse gear being hesitant to change into? I can put it into reverse however can take anywhere from 3 to 10 seconds to change. Checked level and seems ok. Any suggestions on what could be or to fix?

I am having the same issue

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That's what it's for. numbnut. ;)

 

I add the answer to every auto transmission question I get asked and have Indexed them by post title, to save keep answering them again-again-again.

 

When a new one pops up, I just add it to the list, I'm one post behind re. Throttle Position Sensor adjustment at the mo, because my Workshop Manuals are out on loan.

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This guide that I have added to the Transmission Group might help? http://www.mkivsupra.net/vbb/group.php?discussionid=189&do=discuss

 

 

Most faults are self inflicted by poor maintenance, electrickery dickery and throttle body tinkerings.

 

Should your transmission fail to work properly, if you have recently tinkered with any of the above, there would be a good place to start.

 

Check list.

 

1. Correct fluid level is crucially important. http://www.mkivsupra.net/vbb/group.php?discussionid=188&do=discuss

 

2. Check for any fault codes. http://www.mkivsupra.net/vbb/showthread.php?35920-How-To-Check-the-diagnostics-codes

 

3. Correct signal from odometer is vital, check for poor connections on speed converter. http://www.mkivsupra.net/vbb/showthread.php?72588-Code-42-Fix&highlight=pink+wire+mod

 

4. Correct setting of Throttle Position Sensor is essential. http://www.mkivsupra.net/vbb/group.php?gmid=2546&do=discuss#gmessage2546 (If you have dicked with the throttle stop, you may have a problem)

 

5. Speed sensor signal is imperative. (See links on 2 & 3.)

Edited by David P (see edit history)
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This guide that I have added to the Transmission Group might help? http://www.mkivsupra.net/vbb/group.php?discussionid=189&do=discuss

 

 

Most faults are self inflicted by poor maintenance, electrickery $#@!ery and throttle body tinkerings.

 

Should your transmission fail to work properly, if you have recently tinkered with any of the above, there would be a good place to start.

 

Check list.

 

1. Correct fluid level is crucially important. http://www.mkivsupra.net/vbb/group.php?discussionid=188&do=discuss

 

2. Check for any fault codes. http://www.mkivsupra.net/vbb/showthread.php?35920-How-To-Check-the-diagnostics-codes

 

3. Correct signal from odometer is vital, check for poor connections on speed converter. http://www.mkivsupra.net/vbb/showthread.php?72588-Code-42-Fix&highlight=pink+wire+mod

 

4. Correct setting of Throttle Position Sensor is essential. http://www.mkivsupra.net/vbb/group.php?gmid=2546&do=discuss#gmessage2546 (If you have $#@!ed with the throttle stop, you may have a problem)

 

5. Speed sensor signal is imperative. (See links on 2 & 3.)

Links dont want to work on tappy talk. Will try standard version👍

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Throttle Position Sensor adjustment at the mo, because my Workshop Manuals are out on loan.

 

I have some colourful PDF's with random pages missing for extra irritation if you miss your complete set of paper manuals? They are living the life of luxury on a cosy shelf in my garage waiting for your signal to return. :D Dare I say, we might actually be done with fault finding on my Supra.

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