I will try to post a short video I took recording the noise It is coming from behind the dash or engine compartment It is two noises. Both start and end together. They come and go every 14 seconds like clockwork. They last about 3 seconds One part is a buzzy type noise and second is a knocking sound Sounds almost like a water pump that is trying to keep pressure in a system/line Any idea what that is? I'll try to attach video
A repetitive buzzing type sound is usually the brake pump (actuator) going bad on the Gen 2 which is the forum you're posting in. I mention the latter since you don't state what vehicle this is happening to.
what year and how many miles? how many miles have you owned it? how many miles has it been making the noise?
Wait It goes away when foot goes on the brake Must be the complicated hydraulic system keeping pressure
call your dealer and give them the vin number , ask about an extended warrantee on the brake actuator .... Toyota is replacing a lot of them.. don't disconnect the battery if theres an error code they will have to see it when they scan the car. good luck, the repair cost is about $2700
you need tech stream for some prius codes, but if you didn't get any dash lights, there might not be one. do you get the buzzing sound when you open the drivers door?
2009 And it isn't related to door being open I mother-in-law had a 2006 hybrid Camry that the actuator went out on she took it into the dealer that she bought it from and they gave her a really hard time. It took months to get them to agree to do it and she still had to pay labor I am calling dealership now and will update on here in a bit
Ok So apparently there is an extended warranty dealer through Toyota for the accumulator until dec 31 2017 So I set an appointment for tomorrow at 215 to drop it off They will see if that is what it is and then supposedly replace for no charge I'll update tomorrow
good luck, mine had an error code stored so I was covered.. took a day and a half to do a 4 hour job LOL
I'm at the dealer now They are getting ready to check it for codes If no codes found then they will not warranty it Keeping fingers crossed Technician heard how it tries to build pressure every 13 seconds and said that isn't normal and said it wa the accumulator But again...no codes then no help I'll post back in a few
It is the abs actuator accumulator and they will replace under warranty Yeah!! Part will be in Monday so I'll bring it back then Thanks for all the help! This forum is the best
look up the regional Toyota customer service managers number and name for your part of the country, they might authorize the repair, if not you can call the nation wide customer service center and tell them what the tech said..
Would have been more than that! 2700 for part alone! Send me your address and I'll have dominoes deliver...what do you like in it?