Brake Booster Malfunction

I would just replace the master cylinder for $1300 or $1400 (you listed two different prices) and call it a day.

That installed price is decent assuming new parts; they may be getting a good Toyota discount on a pre-tariff part that could go away. Jump on it.

I don't understand why the pump costs $1800 installed, it is usually cheaper. Perhaps this part was hit with a tariff.

You could contact Toyota Corporate but it will be a waste of time on a 14 year old 190k car. Their 10 year 150k warranty on this system was already extended from the factory 3 year 36k mile warranty.

 

The main reason to replace both is because of cost. And it's very likely when one fails,
the other one is close behind.
There is a lot of work involved in removing each. So if you only replace one part, when the other
fails, you have to pay the labor, again. You may get lucky, and if you are willing to take that chance,
go for it.

 

The unit above has around a dozen little valves in it, nearly all of the possible points of failure for the typical "internal leakage" issue.

The unit below just has a lot less that's likely to go wrong.

If an internal leakage issue gets addressed quickly, anyway. Letting it go until the pump is making runs just seconds apart has a side effect of putting a whole lot of extra use on the pump and accumulator, so that can make it more prudent to replace that unit as well.

 

Thanks all! Helpful info indeed, especially the last reply. My take away is, get Brake booster replace & until then, drive sparingly even though we've been told ok to drive. Frankly, I think that is a bit odd that we're told we can drive it. Now, hoping the battery will last another year or two so we don't have that big expense. Is there any tell tail sign it is on its last leg? Anyway, Thanks for the help. Now,,, if only someone could help me with my indoor fireplace insert. Pilot working but not lighting big burner. Double hooded pilot is lighting; I've cleaned the flame sensor with steel wool but still not lighting. Grrrrr....service wait is 3 weeks. Yes, I've learned my lesson to check fire place earlier in the season before service schedules fill up. Anyway, Thanks for the help.

 

What does the control on the fireplace insert look like? (Maybe open a different thread, in Fred's.)