P148F - engine coolant pump over revolution

Yes, and soon would be good. There have been some reports of a failure mode where the pump impeller has separated from the motor shaft. That'd explain the car detecting the motor over speed, because it's spinning without doing any work.

Meanwhile the work it's supposed to be doing and isn't is what protects your engine from overheat damage.

When the coolant isn't moving, you can't be lulled into complacency just because the overheat light only comes on a little. It's fed by a temperature sensor that's only measuring the non-moving coolant in one place.

 

Could you provide the part number? My buddy’s Prius is doing the same thing. Thanks.

 

The Aisin pump here looks interesting:

Genuine Toyota 161A0-39015 (161A039015) PUMP ASSY, ENGINE WATER - Amayama

I'm guessing the same thing, but don't really know.

 

Don’t order car pets without the year, model and trim level. Put the wrong water pump on an engine and it will quickly disintegrate.

 

The Amayama link works out to about $175 USD for me, all in with shipping, and I've yet to be charged sales tax or duties

 

and never before checking with ASPCA.

 

Hey
So I got codes P0117,P0117,P148F from the Dr. Prius App using a Veepak OBD2 reader. There was some visible coolant leak in front of the inverter on a 2013 PriusC. The engine coolant reservoir did look a little low. Was too dark to see everything but any suggestions on if it the engine or inverter pump?

 

looks like P148F usually comes with P0117.
But i have these 4 codes on my 2016 Prius which has 51K and Dealer is saying engine has to be replaced
P148F P00B111, P011511 , P319000