200,000Km service / vacuum pump

[RPP Senior Member Find all posts View Profile Close RPP]

2018 GXL 2.8L coming up for 200K km service.
The book requires the brake boost vacuum pump to be inspected and the vanes replaced at 200K.
This is an all day job as the engine is in the way. The diesel shops here say don't bother.
Is this task really necessary?

[ptommo59 Senior Member Find all posts View Profile Close ptommo59]

Can't comment on if actually required to be done at 200K but seems odd to be calling it a Brake Boost Vacuum Pump as unlike the Hilux/Fortuner the Prado 150 runs a hydraulic brake booster with electric pump, so the vacuum pump can only be used for vacuum switching valve operation and ?.
In the Prado 150 repair manual its a pull the engine out task due to the mounting location on the rear of the camshaft so I can see why they balk at doing it as a service item ( I did read somewhere that the Hilux N80 apparently has extra space behind the engine so can be done in situ).

[RPP Senior Member Find all posts View Profile Close RPP]

Thanks ptommo.

Also visited various Dealers. They follow the book and are tight lipped but did say their approach is to remove the rocker cover, injectors etc to get access to the vacuum pump.
This is what Toyotamanuals says about maintenance:

[ptommo59 Senior Member Find all posts View Profile Close ptommo59]

As it says in the HINT they schedule replacement of the pump at 200,000km, but from the info I read that actually is not the whole pump only the two rubber blades on the rotor segment (unless there is excessive wear or damage to the housing). To pull the pump out to do the task requires clearance behind the back of the head which they indicate is not enough on the Prado 150 but is on the Hilux N80, hence they have the pull engine step for the Prado.

I assume as its not safety critical for the pump to be working at full capacity on a Prado (as it doesn't power the brake booster), testing like shown in you snapshot at 200,000 km and replacing if faulty or anytime the engine is pulled out for any other reason after the 200,000 km mark would also make sense.