Trans Auto doesn't like OD in the cold

[fullthrottle]

There was an issue a while ago where on a cold morning the truck would hold in gear on the open road. I thought it might have something to do with a 5 minutes of uphill driving i do from the second i leave my property so i’ve since taken it for a warmup around the block before tackling the hills – that did the trick but could have been pointing out a trans fault.

This is interesting and something mine does only when its cold. (It doesn't like going into Over Drive.) I was told by the local garage that the trans in the terranos does this until the temperature comes up. Some sort of safety mechanisim. Mine is a 1991 Terrano.
Anyone else know about this?

[Jay]

Hey fullthrottle,

Yup, this is a safety feature to allow the engine to warm up quicker (higher rpm's). If I remember correctly, there is a thread on here somewhere that give's instructions to over ride this buy cutting and looping a wire that goes to the converter lock-up in the tran's loom. The safari auto is the same i believe.

My D21 was the same, but i never bothered...

Cheers,

Jay

[pruggerdore]

yup correct, if the proplem gets worse ie takes longer and longer to go into lockup look at the trans temp sensor in the radiator.

[taz01]

my saffy takes about 8/10ks to go into lockup from cold no warmup after that from standstill to top gear is changing at around 2000rpm lockup at 80ks kicks in still not right i think id like to get a few more rpm before changing .... i still have an issue with setting the tps sensor havnt been able to find of get correct setting ....

[Butters]

Mine was keeping me out of top gear the entire way to Mosgiel from Dunedin each morning (about 15 minutes of open road driving). Quite aggressive shifting too, very jerky.
I should add that mine was driving like it was stuck in a lower gear. I know all about the 'hold' switch too haha

[The Stranger]

Never really paid it another thought as the owners manual says this is normal when cold.