Prius (2004-09) :: Delayed Tap Noise When Hit The Brakes
Feb 25, 2014
I believe this is where the noise is coming from. I get a delayed tap noise when I hit the brakes. If I lift my foot off the brake and hit it again I might not get the noise. It seems forward momentum is need to "reset" whatever is making the noise.
Also.... Right turns at 25 mphs I can hear a rhythmic woob woob woob.
Accept for the tap noise the woob woob woob is hard to hear unless I have a passenger, more so if the passenger is in the rear.
I can't run this Prius into a dealer like I can in the states. I've had this Prius in the Republic of Panama since 2007. They just started selling IV models. This is possibly the 1st Prius in Panama
I had the pads replaced about 25,000 miles ago. There's 106,000 miles on the car.
I step on the rear bumper and bounce the car. The suspension sees stiff/normal. I don't hear any that might be loose.
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My 06 prius takes a very long time to provide heat to the cabin. In temps below 20 F it can take 20 minutes. Today in 16 F weather the red triangle came on, followed by a problem banner, followed by a thermostat symbol. The triangle and symbol turned on a off a couple of times over a 5 minute span. I had been driving the car from a cold start for about 15 minutes when this happened. The car did start to produce some, but not a lot, of heat at about 20 minutes into the drive. I was also forced to use the defroster intermittently for the first 15 minutes (blew only cold air). After parking the car for 20 minutes I drove 20 minutes home with no triangle or thermostat symbol. Most of the way home I had sufficient heat.
I do have the front blocked with pipe insulation. I have owned my 06 prius for over a year and it has 257,000 on it.
Could the thermostat and triangle be caused by a low engine temp? If so would a stuck thermostat be a potential culprit?
Can I assume that if my car is blowing cold air when I am asking for heat that the engine is not over heating?
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Mostly while negotiating in very crude camp ground roadways, we started to hear a new noise. This started before the incident I will be reporting in my third thread, so I do not attribute this noise to that incident. The noise seems to come from applying the brake when the car is already stopped or nearly stopped. Its a bit of a chirp, but it is a low-throated chirp. It think they come in twos, "chirp, chirp."
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My brakes are making a noise like a belt slipping when I'm at a complete stop. The noise only happens when I'm at a stop, brakes work fine. Lift my foot off the brake, noise goes away. Seems to be coming from front drivers side. What should I look for?
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I'm pretty sure I know what the problem is since when I hit the brakes it stops. When I took the left side tire off and right side I compared and there is a thin metal sheet that has room to move on the right, but is tight on the left. When the brakes were done before maybe it didn't seat correctly or something. Just wondering what that plate is called so I can order one and change it. Driven that way 2 years, but it bugs me when the window is down and people probably think my car is falling apart. Maybe I'll search for a brake diagram.
Edit: I think they might be called "anti squeal shims". I saw a picture of them, so maybe they didn't put enough high temp grease, but the left side is tight and the rights side you can move a couple milometers side to side so I'm sure that's the jingling noise.
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2004 Passat 1.8t that is intermittently not starting. The problem only happens when the car is cold. When I turn the key, the car cranks just fine but will not start. All of the dash lights light up and I had the battery tested and it is fine. Tonight it took about 5 minutes of repeated cranking and waiting before the car started.
After a 15-minute trip home and it had a chance to warm up, the car starts just fine. I've taken it to my mechanic but they haven't been able to replicate the problem. I'm thinking about leaving it overnight just so they'll be able to replicate it.
Not sure if it could be related, but I just had a coil replaced a few weeks ago (the coil was <1 year old). The plugs are only 3 months old.
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I locked my 2013, and noticed there was a delay in the single beep when I locked it, Weird, went on with my day. I just tried to lock it again, and there was no beep or signal light flash. I tried my other FOB, same thing. Unlocking works just fine. I tried turning the car on and back off again, no dice.
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We took a trip from L.A. to Sedona AZ two weeks ago during the top of the heat wave. 120 degrees in Needles and 108 in Sedona for three days we were there. The car sat in the sun at the motel all three days except for one short hiking trip. Everything was fine, car ran great, and I didn't baby it, pretty much 75mph all the way there average. On the day we were leaving I went out to get prepared to leave and there was a distinct HUM coming from the rear, most probably the battery area. After a drive to the gas station and on our way out it resided, but I was concerned. Never heard this sound before.
Second thing is (twice I've noticed this), very hot days, I'm getting a lull in acceleration from stop. Whether in Normal or Power mode it's the same. (I regularly drive in Power mode). When hitting the pedal it *pauses* before it accelerates away, like when you start running out of gas in a gas vehicle.
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I have an early 99 F250 4x4 7.3L..... 4R100....
Brief history, a while back on way home from work I let off of the accelerator and had a loud gear meshing like grinding noise, got back on the accelerator and went away, let off and back, so I quickly stopped and pulled over, went through the gears and reverse, everything seemed ok,??? went on my way, got home parked the truck and went about my evening. came out next day to leave and truck wouldn't move in reverse, forward but not reverse. long story short I was told that the snap ring internally probably came out, I have heard of this being a big issue with these, so I set up for it to be rebuilt, got it back and installed and still same issue, what the crap so I ended up having to pull it back out and amongst my own trouble shooting I found the simple issue and was the nylon riders on the 4hi/4low shifter fork were completely gone and allowing the planetary group to free float in and out of 4x4 neutral!!! NOW on to the issue at hand. so far only thing has been done is rebuilt and those fork riders replaced.
now I can move but 2-3 upshift under a load(more noticeable) has a delay going from 2nd to 3rd and under a load it hits hard. I talked to the guy that rebuilt it and he said that the rebuild kits don't always the right springs for the valve body and causes shift issues, so he talked me into the shift corrector kit which I researched and did see what he was saying, so had that done and still no better, still does it, however, it does shift into the gear softer but didn't fix the delay or the hitting hard when it did finally go into 3rd.
After being forced to drive it that way I have since determined that what it happening is it is coming out of 2nd with a second and half pause and then shifting into 3rd, the hard shift comes in to play because during the delay the torque convertor is locking up making it a direct drive like popping the clutch on a standard!!!
I just swapped out the sol pack and I heard from a youtube video that the bolt next to the 2-3 upshift valve on the valve body could be to tight and making a sticky valve, so I re-torqued all the bolts and nuts put all back together and test drive proved to be worse, I now have same issue in all upshifts. all hit hard now, I am at a loss and don't know where to go from here, I can only imaging the sol pack is causing this but I have yet put my org one back in to see... oh and I found two bolts on the accumulator stripped and found one non torqued bolt on the main valve body!!
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After I brake and partially release the brake pedal (not completely letting off) so I can cruise a little further, sometimes I have heard a quick three raps or thumps. Normal?
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My mom has a c-3, today while she was out, pulled out of a parking lot at slow speed, went to stop at the traffic light and all she hear was a 'grinding' noise and had no brakes. Luckily she has thinking ability and used the parking brake to stop. She pulled off when able but then the brakes were fine. I'm a gen III driver.
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I hear a distinctive electric motor noise similar to the electric antenna noise in our 4Runner , almost always immediately after applying the brakes (no matter whether hard or soft). The noise lasts maybe one or two seconds.
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I am a fairly new Prius owner. I have noticed that when I get on the brake, I will hear a sort of winding up noise, or a noise like a very small motor running for just a few seconds. It seems to happen every time I first get on the breaks when moving at a speed above 25 mph, and I can interrupt it if I take my foot off the brake. I kind of thought maybe it was something to do with the regen brake system, but I wanted to make sure it's not an indication of an issue.
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I have Toyota Prius 2006 with about 58k miles. For the last 12-16 months I encounter the following problem: when I press brakes, I hear knocking noise. It doesn't happen every time, but when it does it only happens when I press the brakes. Once I brought my car to a Toyota dealer and waited for an hour until my car was taken for a service. Mechanic found no noise. I tried to produce this noise but my car didn't want to cooperate. I don't see any messages on a display screen. It happens with power on/off and pressed brakes. What the knock is and how to get rid of it?
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What causes grabing brakes in the morning OR when wet???
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I have just purchase a used one 2 weeks ago. I bought it from a local dealer (Longo Toyota). After I got the car home for a day it started to make noises when i brake. If the brake pedal is depress about half way it will make a squeaking noise when it comes to a stop. So i bought the car back in to the dealer and all they did was flush the system and reboted the computer. They said this is normal for some pruis to make a noise when the vehicle comes to a stop and it should not be a safety concern.
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Our gen 1 has developed a (currently minor) noise issue when braking. I'd like to sort it out before it becomes serious.
The brakes are still strong, and the regenerative system appears to be working. When the brakes are applied (even gently) there is a pulsing raspy sound, seems like it is coming from the front, driver's side. It is more rapid at higher speeds, and louder during rapid deceleration. I guess I'd call it 'grinding', although this is much less unpleasant than the classic 'grinding brakes' I've heard on other cars.
In any other car I would figure a warped rotor or worn out brake pad. But I had imagined that the regenerative system handled light braking, and conventional brakes took over beyond a certain threshold. Now I'm hoping they work in tandem, even on gentle braking and this is just a boring, simple pad issue.
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Gen II Prius at 175k miles is making a new clicking sound. One solid brief single click when the brake pedal is pressed. It doesn't happen every time (about half the time?) but can be heard the loudest at approx. 10-20 mph (possibly because road/wind noise is at a minimum at this speed). The work below was done at my local independent hybrid mechanic at 151k miles but since then I have only done oil/filter changes and checked oil levels, which have looked good.
Turn rotors, pack front bearings and replace pads, gold brake pads, rear brake service, performed induction service, cleaned throttle body, added tank injector additive, 3in1 induction kit, transmission service kit, transmission fluid, transmission service package, performed coolant serviced, drained and refilled coolant system, flushed out contaminants, refilled reservoir, coolant service, inspection, replaced drive belt, drive belt.
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Parked Prius making awful sound from brakes. Could it be Suspension? However, I am not sure how to describe this one.
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This morning, I hit the brakes medium hard and got a short metal-on-metal 'scrape' noise from the rear end. It sounded like a brake shoe to me. Later my wife was out shopping and did a 'regular' stop and got the same noise.
The car isn't driven a lot. It's just under 1.5 years old and has 5,400 miles on it. So, I'm pretty sure there isn't a lot of brake wear. Maybe a little above average from mostly city driving. I assume the rear brakes are self-adjusting. Do they make noise when they are adjusting?
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I brought my prius v back to the dealer for the fourth time because of the groaning noise from the rear brakes. I was told that Toyota is aware of the problem and they are designing a new rear brake. They expect it to be ready for installation after January 1st, 2013. Let's hope it isn't too far after the first of the year.
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