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REPAIRED FOR £7 !!! Hi all, I have finally repaired my transmission oil pump on my GS450h !!! After many months of 'trying to find time' to repair it, I finally got the car on a ramp today. Firstly drained the ATF fluid from the gearbox (approx. 4.5 litres came out). I them removed the exhaust bracket mounted on the gearbox (4 bolts). Then I unbolted the oil pump (4 bolts) from the gearbox and unclipped all the connectors from the oil pump controller and wiring mounts from the chassis and fed the cables back from the engine compartment to the gearbox area. I then checked out continuity of the wiring from the connectors to the pump. All were fine. Next I removed the pump housing from the motor and inspected the shaft by trying to spin the shaft on the output of the motor. It was seized. I tried moving it with some mole grips and the shaft moved, but grated. I then took the pump assembly apart to look for brushes (had to drill out 3x M5 screws as they were seized on), only to find that it is a brushless motor with 3 coils, like a stepper motor. I checked out the front shaft bearing and found that it was worn, causing the shaft magnets to grate against the motor coil assembly. Bingo.!!!!! Fault found!!!! I then visited my local bearing specialist and, hey presto, he had the correct bearing in stock! I also purchased the rear bearing too, just as a matter of course, totalling £14 in parts. They are only little 22mm bearings, and are common parts. Then I started to reassemble the motor with the new bearings. I had to drill out the 3 M5 screws completely and re-tap the threads to M6 and fit 3x new M6 screws in place. I then reversed the removal procedure and then filled the gearbox with ATF. I started the car. The same Hybrid fault came up. So I plugged in my code reader and cleared the P2797 code, and HET PRESTO. NEXT TIME IT WAS STARTED, THE CAR RAN PERFECTLY. I now had full Hybrid functionality and a fully wrking car. I am ecstatic. and extremely pleased with myself. Considering Lexus say the only remedy is a new oil pump at the cost of £3240. I have fixed it for £7. All in all, it took me 5 hours to repair (not including finding a bearing supplier). Lets hope this is good news for all of us GS450h and LS600 owners (same pump on both cars). Regards, Giles.

Totally agree with you Adam. That's the way to go, and they didn't even charge me for the hybrid system check.

I just sold my LS400 last week and bought the 430. I miss it already. True japanese Luxury musclecar Improved steering and suspension, endless list of extras and gadgets in 430 cannot outweight the looks, style and reliability of the well maintained 400 with black leather interior..

Frightening cost really when you consider its around 80 mins to do and parts can be bought for around £80. Even at £70 hour you should only be looking at £200 - £250. Parts are also Toyota parts but with Lexus stamped on. I won't be paying it that's for sure. My son is Lexus technician but not working there now. Will get him to do it and just pay for hybrid system check @ £50.

Every now and then i look at pwr button smile. And hit it.

Guys, whatever positive views one may have of this specific Trader the simple fact is that even when, just the once, he is found out for falsifying mileage then he is totally damned in my book. That is an illegal practice and makes him totally untrustworthy............................ no IFS or BUTS ........... it's an illegal practice Malc

Thanks for the advice. Much appreciated.