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Gearbox won't shift in hightest gear for a moment

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Gearbox won't shift in hightest gear for a moment

Postby Itstime » Sun Feb 28, 2021 7:23 am

Hi there,

A few months ago I was towing a fully loaded twin axle trailer with firewood from Matamata over the Kaimais. On top of the hill when it goes down again, the auto transmission did not shift into the highest gear for a minute or so. I slowed down and then it went fine again.
I thought, over-heating. Be careful next time.

Two days ago I was towing up a small trailer with only a few items up the same road. I went up with moderate speed. Again, on top the hill when it goes down, same thing happened again. For 1 minute or so the trans did not shift into highest gear.

Same happened when I was driving for 3 hours and went up the same road, but without a trailer.

Is there something wrong with my gearbox? I had it serviced 30k ago.
Or is it just the way it is and you just need a transmission oil cooler added?

Thanks guys.
Itstime
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Re: Gearbox won't shift in hightest gear for a moment

Postby geeves » Sun Feb 28, 2021 7:45 am

It is speed and throttle related. Without knowing more cant really say. Does it work correctly the rest of the time?
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: Gearbox won't shift in hightest gear for a moment

Postby Itstime » Sun Feb 28, 2021 8:41 am

Thanks for your quick response.

Absolutely no issues the rest of the time.

I was not surprised when I towed approx 1.2 tonnes over the Kaimais. That was 6 months ago. But with a small trailer and a bit of stuff (about 300kg incl. trailer), I was a bit surprised.

270k on the clock.

When the gearbox was serviced, the old oil was not bad at all.
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Re: Gearbox won't shift in hightest gear for a moment

Postby geeves » Sun Feb 28, 2021 12:08 pm

It might plain and simply be you are not going as fast as you thought at that point
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: Gearbox won't shift in hightest gear for a moment

Postby Itstime » Mon Mar 01, 2021 12:55 pm

Yeah, will try next time :-)
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