Apparently a Prius can be driven without a fan belt for quite a distance. I bought this 2013 Prius. Did not think to check if the fan belt was there. I was too focused on fixing the HV battery. After fixing the HV battery I got error P148F. Then I find out the fan belt is missing.
The Gen3 doesn't have a fan belt. The water pump is electrically driven through magnets. How many miles on your Prius ? I'd start looking for a new water pump.
This engine is used in other Toyota's . So for us it's a pulley to nowhere. If you engine water pump hasn't been replaced, it is time .
If there weren't, the engine oil would pour out through the crankshaft hole. And you'd have nothing to look at to check the ignition timing.
Ok, so, apparently kudos to the person who said DO NOT buy a cheap new water pump from Amazon. They are CRAP! I bought one for $148 plus tax. Put it on. 80 miles later I get a new error that turns off my combustion engine and runs my HV BATTERY dead. Error P261B. What a piece of junk. I had my live data scan tool and was able to watch the temperature. I had to have my daughter bring my tools and the old pump that had the P148F error. I put it on and drove home. Now I'm waiting for my Permanent P261B error to go away. "I hate waiting".
Do perform the wiring checks suggested in the manual for P261B before you completely condemn the pump. The wiring and connector are seven years old and you did disturb them when changing the pump. Worth at least ruling out, to avoid unnecessary work or frustration.
Well, if there was a problem with the wiring, why then, when I plugged the wire into the old pump (not installed, just left it laying on top of the A/C compressor} the pump spun with no errors and the engine ran. Therefore I knew the problem was in the new installed pump (mounted on the engine} not the wiring. "Truly you have a dizzying intellect." (just a movie quote, nothing personal). Thanks for your response.
By the way, the permanent P261B went away with the old pump installed after I drove the car 3 times, It changed to a P261B stored and I erased it.
If it worked for you it's all good. You'll notice there are more than two wires to that connector and it's not just a "supply twelve volts and the pump spins" proposition. You'll see if you check the manual that there are several different codes that can indicate issues with the pump and wiring, and specific tests to work them up. Now if you skipped over that and concluded it was the pump and came out right this time, I won't say you should feel bad about that. I'm usually happy to take it when my luck works out that way.
I was very happy. I was able to drive the car home after putting the old pump on instead of having to tow it. I did notice all the connections. I put dielectric grease on the connection also. But was pleasantly surprised when the error went away without even mounting the old pump. Before putting the new pump on, I only got the original error P148F once. After clearing it, it never came back. It still has not come back even after putting the old pump back on. I'm thinking about continuing to drive the old pump. Atleast the P148F error doesn't shut off your engine, does it?
