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The mkiv Supra Owners Club

'93 Auto N/A Gearbox - Hesitant To Go Into Reverse Gear


TSeng

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Howdy folks!

 

My '93 N/A Auto *can* be hesitant to go into reverse when it's cold and I was wondering if anyone else has experienced this/can give me advise on how to resolve it!

 

The reason I say when it's cold is because it doesn't only happen directly from a cold start and after a 5 minute drive the issue can still occur..

 

It's quite intermittent but it's occurring with enough frequency I have to be mindful of which direction I park my car.

 

 

 

It goes like this:

 

I put the car in reverse gear

The reverse beeper goes straight on - but it doesn't seem to engage

The car will just sit in idle

I leave the car in reverse and eventually it will engage and move

Once it's been in reverse successfully once, it wont happen again for that trip

 

 

It's taken as long as 5 minutes before it engages but sometimes it engages straight away as normal - it seems to be much more consistent with the temperature of the car as to if it's going to work first attempt or not.

 

I've tried cycling through all of the gears to no avail, applying throttle doesn't seem to make a difference.

 

It's had a full gearbox oil change and the issue persists, has anyone else experienced this?

 

Many thanks for any ideas! :cool:

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I'll double check the oil level but I'm sure the last time I saw it (after the change a month ago) it was to the top.

 

I feel the issue is getting worse but that may just be to do with the lower temperature's we've been experiencing as winter creeps upon us all.. assuming temperatures have anything to do with it at all.

 

I notice the area around the auto shifter gets pretty warm on long drives - is that normal?

 

Per chance do you have autoboxes and torque converters in stock Keron? Also any rough idea of the fitting cost?

Edited by TSeng (see edit history)
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