What is this hose exactly?
Recently had a used gearbox put in as the original was slipping.
long story short the new but used one is also slipping from 2nd to 3rd. (Same as previous but not anywhere near as bad and less worse when fully up to temp.
Gonna check fluids again Monday to be sure but could it be anything else? Just low fluid?
Noticed this hose open in the bay as well but surely not related?
This is kinda tricky for us here in the States as your battery, master cylinder, etc. are opposite ours because of the steering wheel location.
Maybe someone in the UK can chime in…
As for the slipping between gears, it's likely an ECU issue- https://www.clublexus.com/forums/ls-...their-ecu.html
Especially since the new (used) trans does the same thing.
Last edited by bradland; Feb 17, 2024 at 12:01 PM.
Pretty much next to the battery tray
Metal pipe at the bottom and the loose end of the hose is going under the engine cover.
update the data categories (year, frame code, etc)
Look at tool/engine/fuel tab, sub category Ventilation Hose, or Vacuum Piping
update the data categories (year, frame code, etc)
Look at tool/engine/fuel tab, sub category Ventilation Hose, or Vacuum Piping
This is kinda tricky for us here in the States as your battery, master cylinder, etc. are opposite ours because of the steering wheel location.
Maybe someone in the UK can chime in…
As for the slipping between gears, it's likely an ECU issue- https://www.clublexus.com/forums/ls-...their-ecu.html
Especially since the new (used) trans does the same thing.
I guess there's a chance the new (used) trans was filled with the wrong type of fluid but if you're experiencing similar symptoms after the replacement that kinda points directly at the ECU.
Trending Topics
will get the garage to check it over tomorrow and see what's what. It's too much of a coincidence for it to be both boxes. But then means I could have potentially taken out a healthy box 🤦🏻♂️
Celebrating Lexus & Toyota from Around the Globe
Can you please specify the year of your LS and whether it is a facelift or not? From your avatar it looks like a pre-facelift but not sure if that's your car.
The facelift models have the 6 speed transmission and are known to have occasional issues with the Transmission ECU and with coolant getting into the system.
The pre-facelift ones have a 5 speed transmission that can have Transmission ECU and solenoid issues.
There are companies that repair the Transmission ECUs.
As for the hose, if it's a facelift I can take a look at mine and let you know.
If it's a pre-facelift I suggest you ask on the UK forum
https://www.lexusownersclub.co.uk/fo...xus-500h-club/
Can you please specify the year of your LS and whether it is a facelift or not? From your avatar it looks like a pre-facelift but not sure if that's your car.
The facelift models have the 6 speed transmission and are known to have occasional issues with the Transmission ECU and with coolant getting into the system.
The pre-facelift ones have a 5 speed transmission that can have Transmission ECU and solenoid issues.
There are companies that repair the Transmission ECUs.
As for the hose, if it's a facelift I can take a look at mine and let you know.
If it's a pre-facelift I suggest you ask on the UK forum
https://www.lexusownersclub.co.uk/fo...xus-500h-club/
and yes to prefacelift and 2002
i am hoping it isn't the ECU as i just took out a potentially good box if this is the case lol
thank you









