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Trouble code P0420 description is "Catalyst System Efficiency Below Threshold (Bank 1). It does NOT mean that sensor 1 or sensor 2 are good or...
Look in your owners manual to find out what the red light is.
Personally, I use NGK or Denso in my Prius.
The black rubber cap is on the overflow tube of your reservoir. If too much pressure is built up in the cooling system, the cap on the top of the...
Why did you change the water pump? Was the engine overheating? It is possible that the new Aisin water pump that you installed is faulty.
Change the engine water pump ASAP! Do not drive at highway speeds or long uphill climbs until the pump is replaced. I recommend only using an OEM...
You have a bad connection between the cables and the 12v battery or a bad connection between the negative cable and the body of the car.
The difference in the tires is probably the problem. Try rotating the tires from front to rear and take a test drive with many U-turns.
What water pump and thermostat did you buy? OEM or aftermarket? I would replace the water pump to see if that fixes the overheating. While you...
Refurbished hybrid batteries have there appropriate usage if you do not plan on keeping the car for more than a year or two. How many times do you...
^+1 You trashed the engine by running out of oil. It is not worth putting any money into the car. Get rid of it. You sure do not know how to take...
I assume you are asking about the auxiliary 12v battery. The cheapest I have found is from Walmart, $160 to $180. One of the best is from Toyota...
I doubt it will work. If you lost all your keys, you will need to see a Toyota dealership or a locksmith.
It could be an electrical issue. A wire or wire harness got smashed during the head gasket replacement and is shorting out to ground. Check all...
Yes, an overheated inverter will sideline you until the inverter cools down. It's time to replace the inverter cooling pump again. Buy an OEM pump...
Do you mean the P0A93 trouble code?
What are the old trouble codes that you have? What scanner are you using to read the codes?
The Blue Driver scan tool is not capable of reading all the trouble codes in your Prius. Normally, when you get a P3000 code, you will also get a...
So, you are using a standard automotive battery load tester to test the modules of the hybrid battery? Why are you doing that? That battery tester...
Take a look at the freeze frame data for the P0A80 code. You should be able to tell which battery block is bad.