Ogayford

Good evening, I am suffering from rough 2-1 downshift and general poor gear changing in my 2005 gs430. It's had a replacement transmission 2000 miles ago and I believe now it must be the ECU. I've seen that SIA ELECTRICAL can repair these ECUs, but I'm reluctant to send it away by post to the states for what will likely be 4 weeks. If it gets lost then it's game over. Does anyone know of someone in the UK who could repair the transmission problem with this ECU please. Many thanks Olie

I bought one of those coolant radiator kits to avoid the coolant mixing with the ATF. Unfortunately the hose didn't seem to be of very good quality because it split and the ATF drained. We didn't realise and then when we came to slow down at a roundabout we had to coast in! My mechanic drained what was left, replaced the hose with some better hose, and refilled it. He tested and it was fine. I took it out the next day and it wouldn't go into 4th. I tried to use the sequential to go into 4th and got some grinding noises. Now i just have gears one to three. Thank you for the info. I would think the recon would be quite a lot more than a used box, if the used boxes are interchangeable. There's an LS one on eBay that is reasonable that I may take a punt on now I am armed with a little more info. Thank you both.

Hi all, I'm a new member here and would really appreciate some help with understanding whether the ls430, sc430 and gs430 6 speed a761e gearboxes are interchangeable? My gs430 gearbox has bitten the dust, and it seems there are more LS 430 ones than GS ones. The part numbers appear to be different, but is that due to ECU configuration, physical differences, or just some manufacturing process. If anyone has a gs430 6 speed that would be super as well. Thank you. Olie