You have a point about the dog water being a possibility, but I saw another video that showed that the seals around the Prius hatch are notorious for leakage. So I'd lean toward that being the reason.

Did cleaning the fan resolve the issue?

@@christineangelofmusic1 No, sorry, I just saw this message. It turned out to be a bad module. I replaced the bad one, and reconditioned the battery.

@@howardkanitz4998 Thank you so much for letting me know. I wish you the best! Mine is supposed to get a new battery here in a week or two.

Finally in the Gen4 they installed a filter from the factory.

What he said

Did you try what he suggested? My Prius is 240 and the same just happened

You just asked the most important question of this whole video.A huge oversight on the part of the engineers,Or maybe it was on purpose?to sell more batteries? BUT really such a small fan with no incoming air filter and no auto timer on the cooling motor for run time after the car is shut off?I hope they the Toyota company sees this video and addressees it for the future.nice catch,or should i say COMMON SENSE for some people?But then again most drivers just drive,I'll bet the owners manual is still in plastic in the glove box.haha

@@robertoruiz7069 I think they use coolant niw

At around 1:36 he says blocks 16 and 15 are weak. He also said he test drove the car and could not duplicate the problem. The hybrid battery overall is OK. P0A80 is for battery overheating and you saw the reason why - clogged cooling fan. Bottom line after charging the 12v battery and cleaning the fan, should have resolved the problem as he said for some more time. The whole point of his video was that just because you see the triangle of death and dealers tell you need a new hybrid battery, look at other items first.

correction: blocks 5 and 6. The blocks in the center usually go bad first because they tend not to get as much cooling as the other ones in the ends. Heat is a battery block killer.

@@ccacace1 Respectfully, allow me to point out that you dont know what takes place with the car after the fan was cleaned and reinstalled. In your comment you said cleaning the fan "should have repaired the problem" but did it? Fact is we dont actually know. There was no follow up , at least not on camera. Sometimes things don't go the way we think they should have gone. Unless you follow up with a test to whatever fix you make, all you have is an assumption that you fixed the problem. I agree with you on the "bottom line" part of your comment.

@@gp992 I wish he had the time to respond to comments, a lot of people ask great questions.

Try downloading the free drpriusapp there is a function that clears the warning lights, you can also set the temperature to keep the battery cooled lower. These functions are usually only available on high end scanners. You will need a cheap OBD2 outlet try ELM327. Good Luck

Did you ever get an answer to that?

Injector and/or compression. Move the plug to a different cylinder and the coil to an even different cylinder than the plug and see if the misfire moves. Remember what cylinder you put the plug in and where you put the coil. If misfire moves to one of these you know you have a bad part. If plugs are old, change all of them. Denso or NGK only on plugs. Denso only on coils. Hope it works out.

I recently had a customer who had 7 different codes in ECU. Several were misfire codes. I replaced all plugs (NGK) and one coil that was badly cracked. After I put it back together I had a blinking check engine light and misfire on a different cylinder than I started with. I took it back apart and labeled coils and moved plug and coil to different cylinders. Back together and no codes!!! Vehicle has over 1,000 miles since repair and customer is very happy with smooth running vehicle. They text me 3 times since to tell me how good it is running. Did some other repairs. Intake gasket, found large vacuum leak, injector, 1 oxygen sensor (customer didn’t want to replace all of them. 143K on vehicle) and general sensor cleaning.

I bought all new Denso spark plugs, and the coil was put in not too long ago. Not 100% sure if it’s Denso though. I switched coils several times, that’s how I determined it was 1 coil giving me multiple misfires. But I still have the one on cylinder 2. I’ll get a stethoscope and listen to the injectors. I’ll try a compression/ leak down after most likely, thanks for the reply!

Sir Sweetness it’s got 227k miles, also the oil light keeps flashing. Would that be the oil pressure sender ?

Try reading recommendations from www.alldatadiy.com. Hopefully it has Hybrid/Electric Vehicle Diagnostic Trouble Codes in the DIY ( Do It Yourself ) Version. One of the absolute best investments you can make in the Year 2021....You will learn a lot about your vehicle..... Yearly Subscription I think is $29.95.. .....Also let's you know the correct spark plugs for that car and the exact Fluids you need to be checking. Automotive Professional background Southern California ( 90802 )

Yes

To be fair we don't know what he did as at the end of the video things are still disassembled.

it seems to me that a filter for that intake should be part of the Prius's regular maintenance, like an air cabin filter?

@@wim0104 I suspect it may boil down to public perception. Toyota markets the vehicles to have the same or less maintenance than conventional ICE vehicles. If they add something like that, even if it's a good idea technically, perception is easier to sway by external forces.

You can't fix it I own a 07 rav4 2.4 engine burn oil thru the pistons ,even the owners manual said that is normal to burn oil every 1,000 miles I go through a quarter oil

the problem is the engine design to meet crazy MPG criteria. we'll all have to swap to hybrids :-/ also, do make sure you have the correct engine oil in there: it greatly reduced the oil consumption in my 2011 Outback, but it took 3 oil changes (every 3000 miles). Now she can do 5000 miles fine (driven normally, no towing or drag racing). I use the Subaru branded oil that was designed together with the engine. So carefully check exactly what brand & spec your engine needs. I still burn half a quart over 5000 miles.

You've had to replace the hybrid battery multiple times??? Shouldn't a new one last along time?

@@mbburry4759 lol did you read my post? It’s having a problem and draining the battery. Usually yes a battery will last like 10-12 years. Mine lasts like 2-3. The previous ones were still under warrantee so they replaced them for free. But it’s happened twice now since the initial replace.

@@FaelonZ the cars can sure be confusing. So you think there's another problem somewhere else that is causing the battery to fail?

@@mbburry4759 I’m not sure. It’s doing fine currently. But also not driving it as much. I don’t keep up with routine stuff well, not super savvy with cars tbh. So lot of stuff baffles me.

It doesn't detect a bad fan itself but it does detect the effect of a bad fan, overheating. The red triangle can also be tripped if the battery overheats. The red triangle of death is a global warning for the hybrid system which can have more than one cause.

@@meeder78.Yes I agree but the main battery needs each cell voltage checked to see if it is still ok.

he doesn't want to encourage non-electricians to go in there

ChrisFix has a video on changing the main battery. Lots of caution I might add. But doable with proper procedures in place.

The biggest threat he has considering where he is , is liberal democrats !

This particular model develops a hairline crack above the hatch latch and can easily be fix with RTV silicone.

The problem with a removable screen is that it obstructs the airflow and rather significant amount of air blows through that. I would say if you have dogs it's probably a good idea but then the problem is people don't do the regular maintenance period and you end up with even worse situation with that screen being clogged up and the fan not being able to draw any air . You would be surprised how effective that fan is even when it's obstructed. Mine did not have hair in it but it had dust and dirt probably 50% of the fin spacing was occluded and yet it's still cooled perfectly fine and I live in 105 to 110 fahrenheit temperatures in the summer. The dog fur definitely makes this worse there's no doubt. It would be relatively easy if you had dogs to simply pull away the front of that vent and wrap some screening around the air intake duct. Just to let you know I've got a lot of experience with these cars, had the batteries apart completely disassembled new modules put in on my friends 2006. My 2008 has 343,000 mi on it still rolling on the original battery pack.

Did it solve the issue?

@@Supermarx1978 unfortunately not, still trying to figure out what it is. When I reset the light, I can drive 50-300 miles before it comes back on. Before the light comes on, the prius starts lagging in power response... After pressing the gas pedal, it randomly takes 1-2 seconds to respond. No idea what it could be!

@@Chemike21 Check the earthing connections to the battery and near the boot trim, mine has thrown a p3021 and poA80 code so just going through removing the fan first.

Or get rid of the dog. 😝

@@JoeSalvatore lol! I'd rather keep the dogs, and get a Tacoma! Maybe this customer should be testing the hybrid Tacoma!

A pickup truck with a dog carrier. 2013 Tacoma double cab with that 5’ bed. And a V6 with auto trans.

perhaps but if you check old prius's for sale you will find lots with over 500k with the original batteries intact and only maintenance done..