I'm Too Old To Fix These Things

Welcome to Priuschat. While I have no experience with the P1121 (coolant control valve), I have experienced intermittent Red Triangle when engine oil is low. . Raise the hood and do a visual check of all your levels (oil level, radiator and Inverter), Also, check your Inverter fluid for the 'swirling' motion that shows your pump is working. Other visual items that are easy to check, are your engine air filter and throttle body.

 

sorry to hear about your troubles.

matt @Texas Hybrid Batteries is right in your backyard. he is very helpful on the phone, and has a write up here on P1121.

go to this thread: 'P1121 - can i drive on it?' the o/p is @ericspoor

post #3 from aug. 27, 2018

all the best!

 

First -- my dad -- always thought being too old was a poor excuse.

But, not having walked in your boots, but having been in your "walker" for a time myself, I can sympathize -- even to the point of knowing not much.

But, I think hitting Matt up is a good idea.

Hey, Bisco, I have trouble walking and took a BIG FALL last night while trying to spray poison oak. My car needs washing.....not that far from Boston, am I -- and it's nice here this time of year. The vultures have returned from South America. hint, hint.....

All the free doggie kisses you want.....opps, think I am doing topic drift....nah...that's mendel's job.
kris

 

Hi Sam, thought I would ask if you have bleed air out of coolant system after replaced control valve?
Due to design, air can be trapped inside after fluid refill and you may get a code if there's air in the system..

Gen 2 Prius have bleeding valve in radiator and as well for the inverter.(at least I believe it's for the inverter)
Both locations are fairly close together, if you stood front of your Prius and looking down at radiator towards right hand side.


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If you replaced the storage tank known as CHRS tank you definitely have a air locked system. The coolant loop bleed is difficult on a G2 lots of dealers cant even do it right.The air lock is bad it can overheat the engine badly and possibly blow the head gasket so be careful. It can take your engine out. It will throw a thermometer looking icon if it over heats on the dash then its to late. There is no temp gauge on the G2 very very stupid.

The only way to get a CHRS air lock out of the engine loop is to outboard cycle the CHRS pump thereby moving the air lock along to where it can be bled. Right now all the stukc air is in that CHRS tank. Hopefully you plugged the electrical connector back into the CHRS pump. It will throw a DTC is you dont.

So...to cycle the pump you remove the CHRS pump relay and jump across the relay legs with a wire and that will force the pump on.
Sorry for your troubles but appreciate your honesty on your mechanical talents. This relay jump out may be beyond your skills or courage and if done wrong could cause some damage. But hears the info anyway a novice G2 mechanic may not know.

But once the pump is cycled please see ttou68's post and notice the long stemmed hex tool igoing through the hole. There is a radiator bleed er that tool is opening. You make the car ready....cycle the pump with the relay jumper then open up that rad bleeder and coolant will leak out that's good let it leak out till it stops sputtering and is just solid fluid leaking out. Do the cycle dance bleeder open repeat till it stops sputtering.all the while making sure the radiator is kept full by opening the radiator cap and monitoring its level.

Please use the search forum tab up top and search engine coolant bleed or CHRS pump theirs a good write up on the relay jumper and what pins to use by Pat Wong.

Also sounds like you have a bad 12 volt battery so make sure all the doors are closed and lights out while working on the car. if not that will kill your battery and your day goes from bad to worse real quick. That battery will have to dealt with and with a bad back it is near impossible to get that 12 volt out of its hole in the trunk by yourself without it hurting you.

And lastly to absolutely ruin your day you have a ticking time bomb in the trunk the failing hybrid battery. Its pretty amazing it is still working on a 2006. Its the most most posted thing on this site. All the G2 battery's are failing including mine or about to fail. Its just the vintage and the miles. I thought you should know sorry and be aware that will be a big dollar investment so keep that in mind before dumping any substantial money in the car chasing other things. Post the mileage on the car.

Search again for hybrid battery or just look around the G2 forum and you'll see what I mean about the hybrid battery. It sucks

Good Luck.

 

You're welcome Sam,

If you haven't bleed the air out of the system, then you should review the attached videos.
It's a pretty easy task, and you should be able to DIY if you are able to install the parts..
Prius is a very durable vehicle, tougher then most people believe. Make sure all you connection is attached without leak and plugged in, all you have to do is bleed the air out and you should be good.

I've watched it a few times, before I performed the task when I repaired my first Prius years back...
It's not difficult, just have to understand how the system works. And the part 1 and part 2 videos I attached, have been very helpful to me.

Good luck, and keep us posted on your progress!



Watch "Prius engine coolant change: Part 1, drain and refill" on YouTube

Watch "Prius engine coolant: Part 2, bleeding air" on YouTube

Watch "Toyota Prius Coolant System Bleeding. Totyota Prius 2003-2009 xw20 Antifreeze Bleeding" on YouTube

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G3 and G4 carry on that tradition.

 

and no (effective) low oil sensor

 

If you're not physically well to perform the task, then perhaps the shop you trust would be the next best choice..
Make sure that you and the shop both understand exactly what work needs done and the fees involved...
I hope you feel better soon, and good luck!


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Your very welcome from one bad back sufferer to another. Did you get a L5/S1 dissection or laminectomy?

 

Hi Sam,

It's it my pleasure to share, and that's what Prius Chat community is all about!

Although I am not very active on here, but I do come here to search, read and hopefully to find an answer to my question. At the same time I'm glad if I could help and share something with everyone... so, ask away if you ahve more questions. I'm sure there's plenty of help here!
You maybe a stranger at first, but you're not nobody. Everyone is somebody to someone!
I do wish you luck with your Prius, and wish you well with your health situation. Don't give up, tomorrow is a better day!

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I'm not going to pretend I know your situation (as I haven't been through what you have), but, I can say I have had some very challenging moments in my life. Often, when I look back on them, I wonder why I am still here. The answer that came for me is.............it ain't my time yet! So Sam, keep typing, keep moving and know that even your post here, has done something to us. Made us think a little more about the little things and gave us a little more gratitude to the little things. Keep us updated please!!