I swapped out the coolant pump as I was getting code p1121. The error went away, but then I noticed a whirring for a few seconds when I start the car (I assume from the new pump) then nothing (the car starts normally other than that). I bled the coolant, but it only pumped half way up the tube I was feeding into the overflow reservoir. No air showed in the tube other than that. Now, when I drive, if I press the accelerator a little more (driving up a large hill, for example) I get the warning light and it shows me the high coolant temperature symbol on the screen. Is there something i failed to do, or something I should check to see if I can resolve this?
I just changed the inverter coolant in my 05. I followed the procedure nutz and bolts showed on their you tube. I did notice bubbling and gurgling sounds when first refilling the coolant reservoir. Try their sequence. Posted via the PriusChat mobile app.
I did bleed it again and it worked. It looks like I didn't open the nipple enough. I got a good quick flow and after 1 minute it so, I had air come through. Then I had gurgling and had to top up. So glad this worked. Thanks everyone.
