Symptoms
Pink coolant dripping from the top of the transmission hump at the back of the engine, with the water pump area dry.
The fix, step by step
- Remove the plastic intake runners and intake to expose the engine valley.
- Remove the aluminum heat-exchanger cover, clean both surfaces and reseal with grey FIPG.
- Replace the union pipe and both of its O-rings while you're in there.
- One IH8MUD member called it "a PHH job on FZJs on steroids": nothing technical, just a lot of hard-to-reach bolts.
Tools & part numbers
- Long extensions
- swivel sockets
- gasket scraper
- grey FIPG
- union pipe O-rings
- new intake gaskets
Where to buy the parts
Gaskets, O-rings and coolant pipes (2013 LX570 catalog)RockAuto ↗
3UR gaskets (search)CruiserTeq ↗
Hunting a used or discontinued part? Search eBay Motors for Lexus LX 570 parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.