Prius (Gen 1) :: 2002 - Sound Like Jet Engine When Accelerating And Braking
Oct 23, 2010
I have a 2002 Prius that started sounding weird about a week ago... sounded like a jet engine when accelerating and braking. Also, it felt like it wasn't going into gear right when accelerating from a stop in either R or D.
I took it to the Toyota dealer, and the Prius guy drove it, and told me it was the "transmission,' which would cost about 5K to fix. I should get a computer diagnosis. So I took the car in earlier this week, and the only code that showed up was P0, random system misfire.
Well, last night, I was driving and 3 warning lights came on all at once:
1) power system warning light
2) hybrid vehicle battery light
3) hybrid system warning light
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First issue I noticed was the brake pedal/steering vibrating - my assumption was "warped" rotors (I use warped in quotations so that this does not turn into a discussion on whether or not rotors can warp.) I checked the front and the rotors and pads seem fairly new, the back pads were pretty much gone so I replaced those. Reduced the problem somewhat. Yes I still need to do the rotors but would rear rotors that are warped cause that much shaking?
Next issue I had noticed was that for a while that the car would shake somewhat when accelerating usually going up hills or when the car is under strain. Then I noticed that when I had the car fully loaded with passengers it would shake fairly noticeably when accelerating every time.
I thought the problem may be worn plugs since it seemed to come from the engine, well after 2 days and many hours of work not the problem.
By the way I bought the car only a few months ago and have very few service records so not too sure what has or has not been done. The lady did keep up with the maintenance though.
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Yesterday we were on a 10 hour trip and the engine was acting oddly; when braking, the engine sounded just like the engine brake, but the MPG indicated that it was consuming fuel (engine brake does not consume fuel). When braking, the engine would sound, and the MPG indicator indicates fuel consumption, it would go down to 50, with the heavier braking, like when stopping... then at a certain point it would suddenly stop
It seemed to happen most times but not always. This issue didn't happen before.
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A clunk sound coming from the front end. Drivers side and Passenger side. Not really a metal on metal sound. The problem started after coilover install. The sound occurs while braking and accelerating over bumps. So what I've replaced:
-Strut Mounts and Bearings
-Lower control arm bushings (R32 bushings)
-Drivers Side CV axle
What I've checked:
-Tie rod ends have no play
-Ball joints have no play.
-I have no sway bar, so not the sway bar bushings.
-Its not the axle hitting the frame.
Could possibly be the dog bone mount but when I installed the 1' motor mounts I saw no issue but could possibly be the bushing. feel the clunk in my foot as well.
MK4 2000 Jetta 2.0 5speed With Raceland Ultimo Coilovers (Junk)
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My 2007 Prius Touring creates high pitch Squeak/Whistle sound while accelerating and braking, But if I put the car on neutral then the sound completely goes away. I have all the holes covered on the both side mirrors and this still occurs. The sound is constant for as long as I accelerate and Brake and the intensity varies with how hard I accelerate or brake, It also does that during regen braking when I leave the accelerator.
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My 2007 Prius Touring creates high pitch Squeak/Whistle sound while accelerating and braking, But if I put the car on neutral then the sound completely goes away. I have all the holes covered on the both side mirrors and this still occurs. The sound is constant for as long as I accelerate and Brake and the intensity varies with how hard I accelerate or brake, It also does that during regen braking when I leave the accelerator. What could be wrong?
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I took my 2002 Chevy Prizm to a Firestone shop to have the tires rotated, battery and serpentine belt replaced, oil changed, and brakes adjusted. Yesterday, I noticed a chirping sound when I accelerate. Yesterday was also the first time since the maintenance work that I was driving without any music playing. So, it's possible that the chirping sound was happening before.
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I have a high mileage 2002 SC430.
I have noticed that when I start the engine on a cold morning and start driving right away I hear a distinct "cracking" sound from behind the air vents (dash area) when accelerating. This only occurs when the engine is cold and when I am accelerating, this does not occur when the car is parked (I have not tried revving the engine when the car is parked, since it doesn't seem like a good idea).
A a side note, I do typically move the temperature setting to the max of 85 degrees on cold mornings, but the cracking sound often comes up 5-10 minutes after I change the temperature setting. I'm not sure if this has anything to do with it.
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I have a 2010 Prius with about 20,000 miles.
We recently went on a long road trip and my wife hit something in the road. Since then I have noticed a sound when braking anytime I am going 0-10 MPH. It almost sounds like closing a lid on a box or something. It's not very loud, but I can feel it and hear it underneath my feet when I brake.
Perhaps something got dislodged when we hit the road debris?
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Our 2010 Prius makes a "stuttering" sound when braking under certain conditions.
Here are audio examples of this sound: Toyota Prius Braking Noise that Dealership Claims is Normal - Clyp
The sound only happens when we are gently applying the brakes while turning (either direction) at about 10-15 MPH, especially if that turn has even a slight negative (downward) slope.
It's like a clicking sound that repeats 5-10 times with maybe 0.1 secondsbetween each click.
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I got my first Prius last week but something started happening I noticed a few days ago, that sometimes (between 30 - 40%) of the time when I brake there is a metallic plinking sound, and directly under where I let my non - driving foot chill out (which is basically the center of the drivers site floorboard), my foot can feel the plink as well
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I am noticing a sort of clunk or knocking noise from under the hood when I hit the brakes. I thought it might be the pads, but it comes from under the hood .It only makes the sound on the first touch of the brake, once you have your foot on the pedal it stops the noise. It does this every time on the first application of the pedal. Is this sound normal? I don't recall hearing it when I test drove the car, maybe it's been there all along and I am just now making note of it.
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I am trying to troubleshoot a sound that I've begun to notice coming from the front of my '08 Prius. I've had this car since new, and it now has a little over 40,000 miles on it. (Please note the sound I'm referring to is not the brake pump electric "whirring" noise that happens evey so often, it's definitely something new/different.) I first noticed it maybe a year ago, but it seems to be happening progressively more often.
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When slowing to a stop and turning to the right, there is a ticking sound (not loud) coming from the front. The ticking rate slows as the wheel slows and continues until almost stopped. Break pedal pressure does not affect the sound. The dealer tech heard the sound on a demo drive but they had no clue what it was and found nothing wrong.
The tech, sitting in the right seat thought the sound was coming from the left side. I hear it coming from the right side. Maybe that means it comes from the middle? I only hear it when coming to a stop. Maybe road noise covers it up at higher speed but I don't know.
Currently at about 38,000 miles.
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I purchased (2/17/16) a 2009 Toyota Prius with roughly 73,000 miles. I have recently (the past 4-5 days, except the brake issue that occurred a couple of weeks ago) encountered a number of issues. The issues occur intermittently.
First, while braking, usually when it's raining or damp outside, I might hear a grinding sound like grains between the pad & rotor. Or, the car will be gliding to a stop then at about the 4-6 mph range the brakes will grab and the car comes to a complete and abrupt stop.
Second, while idling in 'P' the engine will engage and the car will shift forward about an 1-2" then roll back (as if bucking). My foot is off the brake pedal. I have the sensation that the car is going to drive itself.
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I have Prius 2005 , there is no problem and no registered error code,but the problem occur when i drive my car on long down road and the HVB is full then the charging sound rise ,its like "B" mode on high speed,this sound continue while pressing on the break pedal or not but when i press on the fuel pedal or convert to transmission to "N" mode the sound return to normal ,but if i press on the break or leave my leg the sound return again,this happen if the battery is full but when the battery loss some charge everything return without any problem.
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I purchased my 2014 GX a couple of months ago and already logged in about 2K. The car has been great so far. The only thing that I'm not so used to, is a strange feeling when accelerating or going uphill (even slightly) - I can feel the engine roar(?) through the steering wheel - I can't really describe it well - it's not a vibration per se, but more like you feel the engine working harder than usual through the slight vibration of the steering wheel. This is my first V8 car - I used to have a V6 Acura MDX before, and never felt that. There is a good chance this is normal for a V8 based truck, but I wanted to get others' input.
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I've recently purchased a used 2008 Prius with 77000 miles. I was a bit apprehensive but have started to fall in love with this car. After running some errands yesterday, I heard a strange buzzz, coming from the middle of the engine compartment. When I'm in the car is sounds like it is front of me, but seems to be more in the middle when you pop the hood.
And when I'm accelerating, there is now a strong hum almost like a revving sound and it increases the faster I go. I am also getting the Maint Reqd light flashing as I turn on the car, but it goes away when the ICE kicks in, just started this in the past week. I have put about 500 miles on it since I bought it and I did buy an extended warranty.
I am getting between 41-44 mpg, depending on traffic conditions, around town, so the MPG, so far has not been effected.
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My daughter has a 2002 Escape 4WD with 3.0L engine.
Coming home from school a few weeks ago she experienced engine running rough on the highway when trying to accelerate. We ran the diagnostic on it and it revealed that #2 cyl coil was misfiring.
I've replaced all of the rear bank coils (in hopes that I wouldn't have to remove the intake manifold again anytime soon). I also replaced the connectors and weatherproofed them.
Replaced all the plugs while I had easy access too. This all went pretty smooth with exception of breaking 3 of the 5mm coil bolts off inside the valve cover. I've also replaced the upper and lower intake manifold gaskets.
It runs much better now except now on the highway, at 1800 rpm/55 mph if I try a gradual acceleration I get engine sputtering and it won't accelerate. If I push hard on the pedal it will downshift and accelerate normally right past this trouble spot. Other than this it idles and runs great.
I've noticed that the 3/4 in. vac hose on back of manifold is getting pinched closed about 70%. this is the hose that leads down to the top of engine just below lower manifold. I suspect this is the problem but cannot determine the root cause. I assumed it was the intake manifold gaskets but those are now replaced.
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My '10 is just over 2 years old now and virtually trouble-free. But since new, I have a noticeable turbine/whining sound slowing to a stop esp while braking from 20mph to a stop. I wrote it off to the motor generator and brake regeneration - hybrid sounds. All fine and well. But I have ridden in two other '10s in the last year and they both seem to make less sounds while decelerating and braking than mine. Is it my imagination or is there something to it? I'd rather not blindly bring it to the Dealer as I'm sure it would get a "normal operation" finding.
1. Is there a TSB out on this by chance?
2. My 3/36 warranty will be up in 10 months. Is there a master TSB listing available on PChat or elsewhere (for free) to check on open G3 Prius TSBs?
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I have determined that I most likely have a bad CV joint - a faint clicking sound while braking that varies with speed that happens with the car in drive, but not in neutral.
I've also found instructions here on how to remove/replace the axle, but I'm wondering if it can be done without separating the tie rod end and removing the ball joint. On other cars I've managed to do this by unbolting the strut, which allowed the hub assembly to flop out enough to be able to slide the axle out of it. Is this possible on the Prius? I have to replace my struts anyway so I was hoping to do it all at once and avoid dealing with potentially frozen suspension components.
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