Gen 2 Prius Code P1121 - Coolant Control Valve
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- Опубликовано: 8 сен 2024
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2004-2009 Prius
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Genuine Toyota 16670-21010 Water Valve Assembly Valve With Bracket
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Dont you need to bleed the air out the system?
Do not be fooled by this mans cheery nature. This was a truly hellish job
Took me 20 minutes, what's so hellish
It was easy lol, I work on bmws and Mercedes and jags all day, now those are hell
Did you spill
The best tutorial to change this pump. Thanks to you I did it in about 1hour.
I just replaced my inverter pump on my 2008 Toyota Prius with about 154,000 miles. I went through the bumper cover & headlight method. Pretty easy and much less than $750 my dealership wanted including flushing and replenishing the coolant! In my opinion, it made sense to completely drain and replenish the coolant at the same time.
Love my Prius, RUclips and Amazon make driving and owning my Prius even more affordable!
Same here doing it thru the headlight is so easy ,I'll be doing the valve soon so I guess its round two !
I did end up going to dang dealership...for peace of mind really. It sis not end that way but I'll trust intuition NOW . 2 hours/$200 was "getting the hard to keep engine running to feed in new coolant" what cost $500 could have....with NO more peace of mind and very little discussion welcome when I had a mechanic paid megga$ there to talk to. Grrr. Credit card bill will surely keep this haunt going.
Learn about your Prius from the great people on Your offering videos 'How To' 👊
Jack up the car put it on stands and do the hoses from the bottom. Once you remove the shield from top and bottom remove the two screws you can get it done.
I have used wine corks to plug the 3 hoses! Lol. Same for when I changed the invertor water pump. Worked well, probably best to stick with the dense rubbery kind not the kind with crumbly cork material, don't want little bits falling into the hoses obviously. As you disconnect each hose place your thumb over the opening, reach into your pocket for the wine cork and plug it (thin corks fit as plugs, not thick ones). Simple remedy. Some of you manly beer drinkers need to drink more wine, ha.
My prius has gone through two of these since I've owned it and I've watched your video each time to help me replace it. Thank you!!
Great job. Good camera skills. You don't waste time talking about pointless things and everything is hands on. No blurring shots. I admire the fact that you work with what you have. Example hammer for a lift and needle nose pliers to take clams off. That's exactly what I'll have to go through. Thank you for the video.
+andruhat thanks for the support, working with what you have is a skill too :) good luck on your project.
I'll be doing the same
I went to Auto Zone after the signal light went on and they checked it and the code said the coolant control valve in our 2008 Prius was broken. I ordered one online. I was able to drive for a few days with no problems overheating. To begin with, I used car ramps on the front and one of those flat scooters to get under the car, chocking the car at the back with rubber blocks. No problem with the top bolt or bolts, but on advice of a local Toyota mechanic I used a smaller 1/4 ratchet with a 10 mm socket to get the bottom bolt off the bracket that holds the part to the car. It was stuck and I was afraid I would ruin it. I finally got the control valve out from the top of the engine. It was a tight squeeze. To get it out, I shimmed in a wood block to hold the inverter up after I took the two front brace bolts off the inverter. Sorry but I don't think I really needed the special hose clamps to save the coolant fluid from dripping out. After a struggle, I ended up just letting the coolant drip out into a container. I don't think you will lose more than a gallon, anyway. The real problem was getting the crummy original hose clamps off. Toyota should have just put regular ordinary screw hose clamps on these. You need to get some long-handled, long nose pliers, cheap at Harbor Freight to help with the dratted original Toyota hose clamps which took me several hours of work and a trip for longer tools and a decent ratchet to Sears and Harbor Freight. I used the long nose pliers, one that came in a set at Harbor Freight with a bent end for hose clamps I guess, and a couple of vice grips, one of them small, along the way. I am not as good as this video guy, for sure. I am wet and dirty but just put the new part in. I did buy the special clamps for the hoses to avoid losing fluid but it was a waste of money and I think the best thing to do is what this guy does. These clamps got in the way. I learned that I could actually let the coolant leak out and save it and pour it through a filter back into a container and put it back into the car later. I used a coffee filter to funnel the spilled coolant into a container. I then poured it into the radiator slowly through a funnel and allowed the bubbles to come out of the system -- I ran the car in park and it took a couple of hours for all the bubbles to come out as I watched the open radiator. I had bought a gallon of pink Asian coolant at the auto store which they told me was the same as Toyota brand and I haven't had any trouble with it for the past few months.
michael abrams Hi Michael I'm going to the same process my question is how do I bleed the air after I change the valve just let the car run for a couple hours with the radiator cap open? do I open the bleeder valve too? I will appreciate your help thank you for your comment.
I put mine in from the top just like this, thanks for the video!! I do have a trick to make it even easier. Remove the drivers headlight assembly and it makes using 2 hands so much easier!! Especially for that bottom hose 👍
May I add that the invertor water pump, that is next to that module you replaced, protects the $4,000 invertor. The invertor water pump fails every 3-5 years. It costs $70. Just buy one & keep it in the trunk. If you don't see " turbulence " in the invertor circuit coolant reservoir, STOP. Tow it to mechanic or your home. It is diy type replacement. Peace.
Had my Prius since 2005; the inverter pump went out 2 years ago, after 15 years. Replaced it, works fine.
Invertor water pump lasts a lot longer than that. My original lasted 10 years 180k miles. Was cheap and easy to replace
I had the Code P1116 after replacing the Coolant Control Valve myself. The hoses was messed up while I installed it, but I didn't aware of my errors. This video helped me so significantly. Thanks Vlad!
Thanks. For REAL. Toyota Dealership quoted me $110 diagnostic (comes off final labor charge) & their hourly price guide for this was "maybe under $500" This part new at Autozone is $75.
I hate having to work on my own car but always have. At 50-I hoped to never have to again. Thanks to your video I can see I can do this. Friggin-A. ✌
Toyota dealer quoted me $155 .I'd hate to see how much they want for labor .
@@patriciacarr5019 well it calls for 3 hours labor sooo average labor cost is 125/hr plus parts. Add the coolant, which is a special coolant for hybrids. Done correctly will cost you about $500
You definitely want oem part for this
I couldn't get leverage on the clamps or pulling the hoses with this method. Just way too little room. I ended up pulling the front bumper and right headlamp assembly. Note this is the same trick for replacing the inverter pump assembly. Its only a few screws and pops. Once you clear that out of the way you have far more room and can get the hoses and hose clamps off. I drained the system and replaced the coolant. Burped the system at the upper valve below the top metal (#6 hex wrench) while refilling. Works like a champ. Error codes gone.
The trick with this one is that unless you clamp pinch off all the hoses first, once you take one off all your coolant is going to flow out of the valve itself (it comes in from underneath). So either accept it or pinch them all off. You need big hose pinchers, I think harbor freight has some but the little C shaped ones I got from autozone weren't enough, O'reilly's didn't seem to sell any either. Taking out the headlight is a huge help...got one at salve for like $20
I've been putting off this repair on our 220k mile 2006 because most videos made it look like a royal pain in the ass with draining, bleeding and filling everything while having to jumper the hybrid coolant pump. This is a way more straight forward approach and I'll be tackling this after the clock spring.
I took the headlight out and it made it way easier
I've had to replace this part several times now (in different cars) and I always come back to your video. Thank you so much!!
First I repair the Combination Meter with your video, and now here I am on your Pump video because I'm starting to hear the constant clicking of the pump motor failing ..... what's next!!! LOL
I just had my combination meter repaired and now I’m hearing this noise as well!
Thank you “again”! For this video.
I watched this to replace mine 3 years ago with cheap controller from Amazon ($40) it only lasted 3 years…. Lesson learned!
This time I purchased one from my local toyota dealer for $130 w tax and this should last longer than my head gasket.
2007 Prius w/ 200k miles 🎉🎉🎉
I don’t see the comment about the light but removing the right headlight gave me a lot more room to work with and also was able to easily remove the valve out from therr.
I went by your video but still was struggling so I took the metal bracket off of the valve and it made it alot easier
Thanks for the vid! When you put it in idle, Can you put a note on it to push the break on the last step when you push the power button? That took me a shameful amount of tries to realize...
Great vid/tutorial! Glad to learn about the engine idle hack and about how to remove from on top... both of these made the 2nd repair of this (same valve failed 2 yrs back) much easier!
Just changed this in Pahoa Hawaii , your accent reminds me of the islands. Thankyou for your simple video and inspiration. It was not easy but I’ll fill it tomorrow and let you know how it goes. Mahalo peace
This was super helpful when my husband and I tried to replace the coolant flow valve in my 2008 Prius!
You make it look so easy.My mechanic is afraid to work on it ,so I may give it a try.
thanks, my check engine light just came on and throwing this code P1121. just order the part and will be doing this weekend
How did it work out for you?? Im scared ill ruin something??
Andy A I just bought the part today how did It go?
Took me four hours, those clamps are hard to get off and there is not enough space to easily work with. Glad that it's over. Thanks for the video, unfortunately had to go underneath the car to unclamp the bottom hose. *Shudders* ugh the bottom hose :(
Glad to get it done!
Did this job in about an hour. If you got big hands, a long ratchet would be helpful
For those who have tried it, how well did it hold up over time? This is the first video that didn't go completely over the top about purging and the effects of air in the system. Since the presence of this valve already Indicates that Toyota took a completely simple concept and jacked it up, I've been worried that the air bubble issue is legit
I'm also unsure how big of an issue it might present , so personally, I'm just gonna try to do the job myself, and then get a repair shop to flush the coolant system for me so that I know it's good to go. Only have to pay $100 for the flush instead of the estimated $830 for the entire replacement of this part.
Just to let anyone know when want to put the car on idle the last step when you have press the power button you have to press it with the break
I would recommend the clamp tool... not too expensive 6:33
Thanks for posting! For an ‘easy’ job, this turned out to be a B!TCH for me! That 10mm bolt on the fender apron rounded on me! I came close to taking out a sawzall. The key was borrowing a super-short handle vise grips. Also, if you have big hands, don’t even try this job. Lastly, what u need are plugs for the hose ends - not clamps.
Any kind of plugs?
I have used wine corks in these plugs! Lol. Same for when I changed the invertor water pump. Worked well, probably best to stick with the dense rubbery kind not the kind with crumbly cork material, don't want little bits falling into the hoses obviously. Some of you manly beer drinkers need to drink more wine, ha.
Excellent! Thank you for the step by step instructions!
Here's my fix in Mn. at -10-15* F : remove CCV; clean ; remove gear cover; remove worm gear and plastic drive; manually turn valve so ports all align(small hole on 3-way valve goes down into hose that goes to hot coolant resevoir and the others will be full port FROM engine and TO heater pump). Crazy glue gear into place so ball cannot move; replace cover and reinstall; use big black funnel to refill what was lost while running in maintenance mode; (jack up front passenger wheell off ground to help expel air): lower jack and drive. It works good, never dealin' with that 3-way CCV again-DONE. Oh, the only light you get will obviously be a p1121 CCV but otherwise it's fine.
This was super helpful. Just wrapped up my repair. Thank you!
I couldn't do it this way. I had to remove head light. I can't afford to mess up my hands in the tight spaces.
So helpful video for me! I have the same error code so i'm going to replace the valve as well and now I know how to do it easier. Thanks a lot!
Worked great. Thanks. Looked up a different video on how to bleed the system. Its pretty easy.
Best Video for this job!! be sure to bleed system!
Thanks, I'm changing mine, should I change the water pump at the same time, I do it every 90,000 miles.
love it nice video bro keep it up the good work, i liked the end part where you get in not knowing what in it just like me..lol
Wow just u did very easy for us we learned well thanks for time
Seems hard to do, in any case thanks for the tutorial.
Hello, why do we need to put the car in idle (minute 7:00)?
Great video btw!
Its rare I ever see these but we had one come in today with a really bad one
Follow this video to a T but anyone who is watching be sure to burp the cooling system, anytime you change any part of the coolant system the Prius is extremely sensitive to air pockets since coolant runs throughout the entire car. I forgot to do it and the code P1121 came back.
Great video thanks for sharing got to change mine now
I'm going to have to do this soon. I really appreciate the video because it was helpful! :)
Thanks a lot for this Video! I did all you said in this video. I saved hundreds!
Nice job. Thanks for video.
AWESOME thank You for the extra little tips in between! You're saving me sO much money 👏💗 APPRECIATE YOU
Great video. Did you have to go in and clear the code or did it go away by itself after replacing the pump?
Always clear codes after repair. It will take a long time before the computer clears itself
ah that's what that is i was thinking it was a pump every time i shut off the car i hear it whining loud
Very grateful for your help! Thanks! I imagine the hardest part is removing and replacing the bottom hose clamp. How'd you do it?
Would love to see some more information on this as well
Great video. Thanks you saved me a lot of money. Happy new year
Just the other day. I was with my mom and I noticed coolant was leaking by the left front wheel. I went to an oil change shop and it appears to be the issue
Wonder if you have air pocket problems after repair
Great video just fixed my gfs Prius
Thank you for the video. It Helps a lot
Did the check engine light come off?
@here what was the symptoms. I m not sure if I have issue with it. My radiator never get hot else drive fine if my heater is on full fan on. I guess that valve has issue.
thanks you so much for made it look easy
Thank you!
Thanks!
Hello. Do I need to disconnect the hybrid battery before doing the process,
Thanks I did that too. But the top bolt was so rusty I end up breaking it. Now only one bold holding the valve... Is it bad?
Very well made video. Thank you for making it.
How the F did you get that bottom hose off!?
Thank you for the awesome video! I changed the valve and it seems working, but the dead triangle light went on couple of times when I was driving. Do you have any clue?
Could be anything, you need to pull the code.
Thanks for the quick reply. I will pull the code. However, I believe that it should be related to the valve. My heating system does not blow warm air anymore!
I see, hope you figure it out.
I figured out that the issue was from low level of coolant. While both plastic reservoir tanks were full and I removed the air bubbles from the coolant, I still had to add coolant to the radiator itself.
Thanks for your video again
When your heater doesnt blow warm, thats a good clue that there were probably air bubbles in the coolant.
That made it look like reservoirs were full, but they were not.. Glad you figured it out
Why does this keep going out? We have changed ours 3 times in the last three years and now it's out again??? We buy Toyota brand parts and Toyota coolant.
If I clamp the hoses and don't loose much coolant is a flush necessary? Or can I just run the car, let the pump prime itself if I don't loose coolant. Thanks!
7:50 rumble in background.....next video, how to replace the ABS actuator pump........
No, this is a normal sound on Prius vehicles. It’s one of the many electric coolant pumps working.
@@zachmiller289 on mine, that rumble was the ABS actuator pump failing, once i paid the dealer 2800$ to fix it, i nolonger hear it. google search the ABS pump, you will find its a common fail issue, and toyota even extended the warranty on it, unfortunately mine started failing after that extention. the problem with the ABS pump is internal seals fail and it has to keep turing on to repressureize the internal section as the pressure slowly drops.
@@zachmiller289 ruclips.net/video/OYqKLr8mhqM/видео.html&ab_channel=Mr.Electric
The coolant valve which this is its not the same thing as the coolant pump
👍
I HAD SAME ERROR, BUT I CHENGED BUT VALVE BUT A PUMP - AND IT WAS A PROBLEM. NOT A VALVE.
Was yours making sound before completely failing?
So I saw another video where the coolant leaked out so they had to "burp" the system to make sure there was no air in the system. Something to keep in mind.
yeah, i had that issue. after i filled the coolant again, i didn’t bleed out the air from the system so my car was over heating.
Why not remove 3 nuts and remove the headlight?
My Prius is 2002, looks like this part is not the right one. Is it the same part # or diff?
I replaced mine at a high cost last year. I still get the error periodically. What else could it mean?
just finished fixing the combination meter, and i get hit with this curveball. i'm driving 2k miles to and from new mexico next week. should i fix it now, or is it only prone to completely failing in colder temperatures?
I know that this is an old video, but I'm guessing it's not necessary to change the coolant with this job? Did you just clamp off the hoses temporarily while you did it?
I think it will still leak out a bit so might have to add back and burp the system out a. It trying this soon ‘!
Great job except tell us how many miles you had
It had about 190k miles when this happened.
How important is it to bleed the coolant after?
Thanks for the tutorial! It looks like the hose clamps you recommended are out of stock, is there an alternative seller?
geni.us/HPd8L
Great video….is this also referred to as the coolant bypass valve?
This valve bypasses the heater core, so "coolant bypass valve" fits what it does.
@@mdhsabh I think Toyota calls it the heater control valve, at least that’s what they told me in the parts department when I went to order it
So it has two pumps... Just replaced one lol.. gotta replace this one now
Did your car experience any symptoms before the code went off? My Prius heat is not working correctly at the moment... It works sometimes and its really hot and then sometimes, even at highway speeds, it'll just output cold air even after an hour of driving. I'm thinking some valve is stuck and this may be it? No code so I can't confirm.
+B R not sure, cause I bought the car with this problem. But it sounds like maybe there is another valve just for the heater. I would not change it till comfirmed. If you figure it out, please let us know. Thanks
I've had this valve go out 2x on my Prius... neither time did I have problems with the heater... I think you might have a different issue or a second issue going on.
Greg S. Yea rookie mistake. Coolant was dangerously low. The reservoir was so dirty I couldn't see the fluid level and I thought there was enough in the radiator. Upon deeper inspection I was way low. Heater working perfect now, 232k miles.
fyi when I had no heat there were no codes on the dash. However, an expensive scanner will pull up all sorts of codes....Faults with the HVAC system. Faults with the trans. There is a list of about 15 systems that the "expensive scanner" scans for. Long story short the good scanner pulled the P1121 code for me even though it was not on dash when my CCV went bad.
@@gregors1422 How did you get your coolant back up?did u do it yourself or took her in?
I have Gen 2 Prius (Japanese Import) but I have NO Coolant Control Valve! How is it even possible?
Did you have any symptoms before the error code?
is $405 a fair labor cost for this repair?
What is this part name?
Please let me know.
I completed the install but occasionally get a temp warning. I think I have a lot of air in the lines. I tried the bleeder. I also don't see a good flow in the tanks. Any thoughts? Thx
You most likely have air in the system. There is a way you can force the water pump manually to run out the air. It requires pulling a relay and shorting a couple wires. I might do a video on this eventually. Pretty sure you can find one on youtube though. Goodluck!
Update. I didn't have air in the system. The water pump failed also. It may have been the problem in the beginning but I only had a check engine code for the control valve. A day later the check engine light came on for the pump.
Thanks for the update. I guess if it's not one thing it's another. At least you know what wrong now and it's not a wild goose hunt.
I have an 05prius with 121000miles, I have a new 12v battery. The death triangle shows up on the dashboard and the new battery doesn't hold a charge. Please any idea what's wrong, thank you
The first thing is you need to do is check your codes. Once you do that you can better see what your up against.
@@JustVlads thank you
What scan tool did you to read the codes on 2006 Prius
used a wifi obd2 reader adapter with an android app called Torque
that's under recall you should have Toyota fix it for free bro>
What do you mean i have this same issue should i not try to fix it ?
And how so free
Do I have to disconnect the battery?
Some subscribe to this method for added safety.
Hi, will the triangle and engine light reset automatically? If not how do you reset? Thx
To reset it you can disconnect the 12v battery. Watch this video from 1:15 time line: ruclips.net/video/P9yi6djL2Qk/видео.html
Ok I will check out the video. I'm half way done this install. I subscribed to you.
I really appreciate the help.thanks
Mine reset on its own after the repair. Except this repair won't fix the red triangle, that's different. Check engine light went off on its own though :)
راءع
What does this part do anyways? What happens if it dies completely? What would not work? I think mine is shot, here is video of the sound it makes:
ruclips.net/video/eIUnsBka0gg/видео.html
That's the inverter coolant pump. Not to hard to change. If it stops working your inverter could over heat and burn out. I would suggest replacing it right away.