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orange4boy 10-11-2008 02:52 AM

Disable downshift on my Previa.? Help me P&G!
Four speed auto transmission downshifts way too easily. Does anyone know how to retard it or disable it temporarily so I can pulse and glide properly? It has overdrive too so it should be a pretty good improvement if I can get it to work.


taco 10-11-2008 03:51 AM

loosen the shift cable connected to the throttle body. i did it on mt lexus es300, that way it takes more pedel to make it down shift.

MetroMPG 10-11-2008 03:50 PM

RH77 did something similar with the linkage on his Acura. Seemed to work for him.

orange4boy 10-11-2008 07:20 PM

That is so darn simple.

Thanks guys.

Super handy on my previa is access to the throttle body under the driver's seat. I just installed a vac gauge so that cable loosening is the next 5 minute mod.


orange4boy 10-11-2008 11:14 PM

Still downshifting too easily

I loosened the cable 1/4 " but it still downshifts too easily. I only tried it at between 50 and 60 kmh though.

I'll loosen it all the way then see.

I'm betting it's a vacuum thing. Bleeder valve?

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