I am a relatively new owner of a 2007 Prius and am curious about a sound I hear quite often while driving.
The sound is similar to a cd changer changing disks my package doesn't have the disk changer). It seems to happen when braking but I haven't pinned it down to one catalyst.
It seems to be a normal sound and I am not worried about it since riding in my roommates '07 Prius and heard the same sound.
2010 Prius making knocking sounds. Not exactly the "death rattle" that sometimes happens when you first start the car.
* While driving, the sound reminds me of the Raptors in Jurassic World.
See example videos:
Knocking at idle (Knocking Noise starts at ~19 seconds into the video):
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Knocking while driving: (Good examples at ~24 seconds into the video):
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Knocking while driving with Torque OBD2 Monitors: (Noticeable example starts at ~28 seconds into the video):
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The car has over 300K miles and the problem started a few months back. At first the sound only occurred while driving under certain load conditions.
The problem would occur at intermittent times. Normally at low speeds with heavy loads (going up hill with low to medium acceleration). Also occurring for a short time when letting off the accelerator. Never occurring at moderate to heavy acceleration. Never at idle. Recently the shaking / raptor noise started to occur while idling.
* This problem is now easily created at idle each and every time the HV battery drops below 2 bars and requires charging. The engine change is immediate and starts and stops in sync with the extra load of the HV battery charge cycle.
Placing the car in the maintenance mode, the car will start and idle normally then immediately start and stop the knocking when it switches from HV charging to non-charging mode. There are no Check Engine light. Things I've done to troubleshoot the problem:
* Swapped the following parts with another working 2010 Prius.
** Coils and spark plugs
** VVT solenoid
** Cam Sensor
** EGR Valve Control
** Fuel Injectors
** MAF Sensor
** MAP Sensor
** Evap Control Valve
* Cleaned the intake manifold (It was full of carbon)
(This was done about a month before this problem started to intermittently appear). Prior to cleaning the intake manifold the car was shaking and misfiring under certain high torque condition and generating a P0304 check engine code). Once I cleaned the intake manifold the problem was fixed. I had no more check engine incidences and the shake was gone.
It has been just about a year since I bought my CPO 2007 GX470, and I still love it like the first day I drove her! I've noticed one little thing I can't put my finger on, though - an intermittent rumbling/rattling sound coming from the ceiling during high speed highway driving and/or high winds.
Now, I've checked the sunroof itself, and there doesn't appear to be any "give" to it. It's solid. Same for the surrounding parts of the mechanism. Yet for some reason, during 70+ MPH driving and/or high winds, I get this low-pitched "WHUUUM..WHUUUUM..." vibration from somewhere above my head.
Haven't taken it to the dealer yet since I'd like to identify the issue myself if I can, but it's hard to isolate when you're focused on driving.
2007 GX470 120,000 miles. Great vehicle and no problems until now. Seems I have an intermittent engine whine/whirring/zinging sound. I say intermittent because sometimes it there and other times its gone. It is fairly loud. Almost like an extremely loud alternator whine, only this sound is coming from the area near the ac compressor. There is some plumbing which runs just along the left side of the compressor pump and when I grab those lines and the little aluminum cannister in that area, I can feel the vibration in that system, big time. No vibration from the compressor pump though. Not sure what those lines are, but whatever they connect to is probably the culprit.
Its odd because the noise comes and goes. It doesn't fade in/out. It's either full blast loud, or totally gone. Once it's gone, it doesn't come back for a few days. Then one morning i go out and start the truck, and there it is again! Usually lasts for about a day, then it goes away for a week or so. After a week goes by, there it is again! Really odd. I had my mechanic look at it, but it wasn't making any noise that day (as luck would have it). He told me it was an awesome vehicle. Of course I agreed, but that didn't diagnose the problem.
Strange thing on my 2006. Driving on curvy road, would occasionally get just the "Red Triangle" exclamation point (for a second or so) -- and also the word "Problem." would flash up on the display.
No permanent check engine light or other icons lighting up. Still getting 40MPH, everything seems to be driving right. Have 135K on the odometer.
Question - does that triangle thing store codes that can be read by an OBDII reader each time it flashes -- or does the check engine light need to be on?
Second Question - Any clue what the word "Problem." with no description could refer to? It goes away at the same time the red triangle goes away.
I have a 2008 Prius. It has been giving me an engine light intermittently while I am driving. My mechanic could not get an error code to show. It mostly happens while braking or while driving a right hand curve on roads at speed. What might be happening?
View 3 RepliesPPH: (Possibly Pertinent History)
Original Hybrid battery failed April 2015.
1st rebuilt (Dorman) battery installed April 15 - Failed July 2015.
2nd rebuilt (Dorman) battery installed July 2015 - Failed October 2015.
3rd OEM (Toyota) battery installed October 2015.
Front end alignment (stay with me) May 2016.
Intermittent Red Triangle of Doom June 2016-present.
Installed Camber kit (yesterday...)
After I realized that I could duplicate the conditions for the triangle appearing/disappearing (brake/veer left to make it come on, accelerate/veer right to make it go away), I relaxed on the urgency of getting this addressed. After all - if the triangle goes away, there really isn't much of an enduring problem (I thought).
Brought the Prius to Legacy Toyota (Tallahassee, FL - BTW, I have only good things to say about this Toyota dealership) and the mechanic and I replicated the conditions while the Toyota diagnostic computer was attached.
She was driving and she turned onto another road this morning and the Prius started making a popping noise which lasted about 30 seconds. She normally averages about 42/43 mpg but it is down to 37 mpg. She said she has noticed since yesterday the Prius did not drive the same (I am assuming she means the power). The Prius is a 2006 with about 105,000 miles on it. Nothing has ever been done to it since we purchased it new in 2006 except oil and tires.
View 4 RepliesIn my 2006 Prius, I just started noticing this recently, but whenever I turn my steering wheel, it makes a weird noise and I can feel something going on through the steering wheel. It doesn't impede my steering, the car steers just fine... It's just an add sound, I don't want to say a cracking sound... but it kind of is? I don't know. I'll have to put a video of it up. & it doesn't matter which way I turn it, it still makes the weird sound and the intermittent vibration... I know it has E-steering and occasionally you can here the motor whirring when you turn it but this is different, it's a loud... popping noise is the word for it! Popping, and I can feel it when it pops through the steering wheel. Again, it doesn't impede the steering ability at all, but something isn't right I'm sure... Or maybe it's normal.
View 2 RepliesMy car have sound like motor running during I drive while i turn off the radio and I try to get where is the sound come from it seem like near driver seat, by the ways what is that sound ? it happen around 2 second only and after a while it happen again....
View 2 RepliesMy 2007 (with Nav package and aftermarket Sirius radio) recently started losing channel settings on the Sirius (not on the FM radio!), the dash clock resets, and, recently, the miles-per-gallon and miles driven since last fill-up reset to zero. These events are sporadic, but have started occurring more often. The dealer seems unable to figure out the problem.
View 8 RepliesFor several months now, my 2007 Prius has been making an intermittent buzzing sound from the engine bay. When I first heard it, I thought I had hit the little lines they cut into the road to let you know you've drifted over the center line - the sound is like that, a low-pitched buzzing noise. Today, the check engine light came on as it was making that noise. I put a code reader on the car and got P1121, a bad coolant flow control valve. Wondering if the sound and the faulty control valve are just coincidental or if the valve might make that noise when it fails? And if not the valve, what the sound might be?
View 19 RepliesMy 2007 prius squeaks the first 10 minutes of driving. I believe the squeaking sound is coming from the bottom of the vehicle. Car has around 65k miles.
View 2 RepliesI have an 07 6speed MT w/ 82K on the clock. Today it was snowing on the ride home and I noticed a few occasions where the car felt like it was bucking for just a split second. No warning lights came on at any time. The RPMs and speed never changed when it bucked. I was driving between 35 - 55 MPH when it was occurring in 3rd, 4th or 5th gear. No correlation to accelerating, decelerating, or coasting on highway that I could figure out.
Given that the snow was covering even the treated road surfaces, I suspected it might be connected to the ESP, so I turned it off for a while. Still happened.
I didn't notice any abnormal engine noises and it was fine on my ride to work in dry conditions earlier in the day.
I haven't had any work done on it recently and I am getting the 80K service done next week. It has no engine mods done at all. All stock.
Could it have been the tires slipping on wet spots? But happening so quickly the traction light never came on? Or should I look for other issues in the engine?
I got a rebuilt 2008 prius 2 days ago , today while I am driving , the big red Triangle appears , and on the MDF screen i think its a red temp mark , before the red Triangle appears , the ICE become like crazy loud sound from it, so i bring my mini VCI and i got the following info (i will post it as an image ) .
View 9 RepliesI have an intermittent sound coming from my engine. It shows up out of nowhere and could last 20 seconds to 2 minutes. Because it's intermittent, I can't seem to pinpoint where it's coming from. Sound file is attached.
It's a 2008 with 79K miles.
My 2007 Honda CR-V has intermittent starting problems. It doesn’t matter if the engine is cold, warm, or hot, time of day, or weather conditions. The car makes no sound and does not turn over when you try to start it. The idiot lights come on but no indication of the problem. The dealer “thinks” it’s the starter but not sure. They won’t replace the starter (#600.00) unless they are absolutely sure that’s the problem. The dealer waived the $150.00 diagnostic fee and concluded the vehicle is ok at this time.They started the vehicle 20 – 30 times without a problem.
Dealers notes on service report were: “Performed GRB electrical system test. The battery, starter and charging system all passed. They checked the A/C relay and is OK. Checked battery and starter connections and they are all ok. Warmed engine to normal operating temp and checked ECT voltage with HDS AIT is reading .6 volts which is in spec. Vehicle is ok at this time”.
My 2010 Santa Fe has an intermittent all window condensation problem, regardless whether the car has been idle overnight or whilst driving it has occurred on numerous occasions. In one case in the morning I had to use a towel to dry the inside windows. I have tried leaving the heater / AC on various settings but it still occurs. I have noticed that the door windows when I open / close them the seals do not touch the glass. In the short term the AC and fast windscreen/rear window buttons do clear the moisture but it does re-occur especially whilst driving...
View 6 RepliesMy 2007 Prius II is starting to sound like a little roadster - when I was driving on the freeway behind a large car I thought it was them, or just hoped we braked and hit the accelerator at the same time thinking it couldn't be my car.
Only after that car left did I realize it really was my usually-ninja car making the loud purrs. It cruises quietly and the sound goes away, it's hitting the gas that makes it loud. The mileage is the same, it feels the same, it's just loud now.
When I'm driving over sharp bumps I hear what sounds like a small chain jingling around. I took off the hubcaps and jacked up the car to see if anything loose. I grabbed the exhaust pipe and shook it, but it didn't make any noise. I couldn't see anything that would cause it. The front right strut's rubber cover is off so could the strut make that noise?
I just read a few posts with similar problems, but one was a compression sound and another was a knock, and another was a metallic hick up. Mine is literally like a loose high pitch chain noise and change rattling in your pocket. No uniformity to the sound. But it also only happens over quick small bumps not large ones like speed bumps.
There is an intermittent scraping sound in the middle of the dash on a 2007 Lincoln town car. It is a low mileage car, about 40000 miles. It comes and goes. It doesn't seem to make any difference which position the ac controls are in. but climate control has to be on.. There is also a sound when you turn ignition off, sounds like water moving. I am thinking it might be something with a blend door actuator.
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