When I accelerate a strange noise appears to be coming from the passenger dash.
Sounds like some kind of baffle or low rumble sound it only does make the noise under acceleration.
At work we have a 04 Passat 4motion wagon that has a strange noise coming from behind the dash. The best way I can describe the noise is like computer hard drive loading. It happens continuously even when the radio/cd player is on.
View 1 RepliesSo after this weekend's hurricane my 2011 f-250 started to making a noise when I accelerate. I don't know if water got in some where. But there's no MIL light coming on.
View 11 RepliesI bought a 2003 F-150 Lariat, 4.8L 4x2 about a week ago. Everything worked great at first, now I have this hissing/air coming from the dash. It happens while the truck is on, no matter if parked, driving, etc.. Ac/heater on or off, noise is still there. I have not yet taken the dash apart to see if i can pinpoint this noise. To better explain it is almost as if the air or heat is on and really low.
View 2 Replies2013 Sonata A/C stop cooling. Is it cover under warranty? Started making strange noise under dash.
View 4 RepliesTwice this happened today. When I inserted the ignition key, strange noise occurred under the dash. It sounds like some actuators or motors are being activated. When I turned on ignition, there was nothing, like the battery was dead. I had to wait until all these noises stopped, about 1 minutes, before I could start the car. After the car is started, I noticed that the avg mpg and the time on the trip computer had been reset. This almost sounds like the onboard computer was being rebooted. The terminals on the battery were checked to be very tight.
View 4 RepliesI bought a 2007 Prius with 198,000 miles on it. Since then I've got it up to 200,000 ish. The previous owners took very good care of it, and did not encountered any severe issues.
I recently took it in to a toyota dealership for the free inspection, and they said it was in remarkably good shape. I asked about the engine noise, and they took it for a drive and said everything sounded pretty normal, at least compared to the prius with 130,000 miles on it that they had apparently just serviced before me. I went ahead and lifted up the hood, set my phone recording at the front of the car, and started it. I let it run for a few seconds, then shut it off.
Was driving back home from shopping tonight and my truck was making a lot of noise when I tried to accelerate. I noticed the boost gauge on the dash was stuck at 35psi but the MiniMaxx showed 0psi.
No engine light so I babied it home which was about 30mins driving and managed to accelerate slowly to avoid the engine rattling. I didn't want to shut it down and restart in case it wouldn't start again for some reason.
When I got home I idled until EGT was <300F like I normally do (it never went over 700F when I was driving home) and then restarted it. The gauges worked fine, MiniMax showed boost and the engine revved freely with no rattling noise. I haven't taken it out for a road test, I'll do that when it's daylight.
Bad sensor somewhere? I would think if the turbo had failed it wouldn't have been fine after a restart.
My 2008 Prius with 105k miles recently started having a strange clunking noise when turning at low speed. Dealership diagnosed it as the steering shaft and yoke to replace.
View 7 RepliesYesterday morning, my 2010 had a very strange noise happen at startup. I'll preface this by saying that it was very early in the morning and I wasn't quite 100% awake, so the exact chain of events are a little foggy to me.
It was about 65 degrees when I went to start the vehicle in the morning. I noticed it was pretty humid out and the first humid morning of the year (I live in central PA). When I hit the power button, a very loud noise came from the engine area. It sounded like metal grinding and the motor having difficulty idling. I depressed the brake to attempt to put the vehicle in drive and the yellow "!" indicator light came on with a message on the on board display (i cant remember what it said). I shut the vehicle down and after a few seconds hit the button again..... same thing. This time, the idling and "grinding-like" noise went away and then the car seemed 100% normal. I noticed there was a little bit of blue smoke coming out of the exhaust while it was idling/grinding roughly.
Perhaps not the smartest thing to do, but I left for work and the vehicle has worked 100% fine since the mishap yesterday morning. In total, I have driven about 150 miles since the issue with no problems.
I read a sticky post concerning a service bulletin for engine knocking at start-up but what i heard seemed to be more than knocking and it was well above 40 degrees.
I have a 2005 Prius with 218,000 miles. Over the past month or two it's started making a horrible noise, which has finally gotten to the point that I can barely stand driving it. I used to keep my radio around 25 or so, but now need to crank it to twice that to hear anything. I can't tell what it is - it sounds vaguely like wheel bearings, but somehow different. The front bearings and a trans drain/fill was done by an independent shop 6,000 miles ago. That shop says the noise is the transmission and definitely not the bearings. My Toyota dealer says the noise is the bearings and definitely not the transmission.
Here are two videos I took this afternoon, which seem to more or less capture it, though it does sound a bit different recorded on a phone than in the cabin:
(this one has a clearer example of the noise)
Background:
I didn't have any complaints with the car until just before the 200,000 mile service was due, when I started hearing front bearing noise (I've had bearings done in about 5 vehicles, so it sounded pretty obvious to me). I brought it to the dealer and was quoted an outrageous amount for front hub assemblies (they told me they couldn't do the bearings, only the whole hub assembly), sway bar end links, alignment, transmission flush, tire rotation and the engine top end service.
I got a much better quote from my local mechanic who I've used for about 3 years, so I had him do the work. This was back in June, at 212,417. He said that they'd never done the flush on a Prius transmission before, but they had the shop manual and were sure of the procedure, and that their Valvoline rep confirmed the correct fluid, and gave them a written warranty in case of any problems. He did note that "a fair amount of metal shavings came out with the old fluid" when they did a drain and fill (not a flush). He also told me that the tires were worn unevenly so I could expect a bit of road noise after the rotation and re-alignment. They an oil change, sway bar end links, front bearings, tire rotation, alignment and reans drain and fill with Valvoline Max ATF, "Toyota Type WS fluid spec." He told me the same thing about the front hubs being complete assemblies, and the part he listed (PBR930641) appears to agree with that.
I have a 2010 Prius which I have had for a couple years. I get this strange noise from time to time that happens while braking. It starts, it will do it for a while, and then go away. When it's doing it, It will also happen after I turn my car off when the engine does it's shutdown phase. Occasionally, when my car is not moving and the engine is off, if I push my brakes it will do it too.
The noise comes from the driver side, by the firewall. the noise is a loud rachety sound, and it does not sound healthy or normal. I took my car to the Toyota dealership 3 different times explaining what was going on, but since it is random in when it happens, they have always told me everything looks normal. (of course I am out of my 1 year warranty too I got when I purchased it used.)
Is this noise something I should be worried about? What it is? Last thing I want to do is burn out some component of my car when I can save it now.
I have the IV, with navigation. My most recent sound is from the cd player. If you open up the navigation (like your going to load a cd) it's even louder. It sounds like like a computer hard drive searching and writing data, and goes on for about 10 minutes (or longer, my patience doesn't last too long). Maybe the navigation system is uploading a database or something. No CD's vs. loading a cd do not make a difference, and the audio system is off. Weird. Only way to hear it is on a quiet night, in EV mode. Reminds me of when I used to reformat a hard drive on my old computer. I'll continue to listen for it when I pull up to a stoplight.
View 12 RepliesMy neighbor has a 1995 Dodge Dakota 3.9L that I have been trying to get back in good reliable condition. It has the 3.9L V6, manual transmission, and is 2WD if that matters. It is a pretty basic truck and must have about the fewest options they had that year. It has air conditioning but no radio as it came this way from the factory.
It has an issue which I suspect is vacuum related. When you accelerate or climb a hill, the HVAC acts really crazy. The vents start blowing air and then stop. It doesn't do this on a flat surface but does it immediately when you accelerate or otherwise put the engine under greater load.
I have inspected all the vacuum lines and found nothing wrong. There have been some issues with mice building a nest in the air cleaner but I couldn't find anything chewed. Where to look?
I just bought a 2009 Prius. Sometimes I accelerate and brake, there is a strange grinding like noise. Seems like its coming from the inside of the car, maybe in dashboard. I'm not familiar with all the sounds the Prius makes, but this doesn't sound like any noise I've heard in a car.
View 6 RepliesHave been driving my Prius with no issue all week. I leave the car home and take my wife's vehicle, while she drives it today without incident. I come home and hear the car making some strange beeping noise (NOT the anti-theft alarm, different). I hop into the car and try to start it, and the check engine and ABS lights come on for a second before other lights in the speedometer area kinda half come on. The gear indicator comes on and has boxes blinking on all of the letters.
The MFD never comes on.
It appears to be the 12V battery dying. The car has 150k miles and I have never replaced the battery, so it seems I was way overdue for this.
I do a lot of diagnostic and keys programming but my mechanical knowledge isn't' that good. I had a minor accident last week and a car hit my Prius from the passenger front corner, Areand left a small dent, check the red X in the pic.
I noticed after the accident that the engine noise was much higher, I checked all ECUs with Techstream, I found only one error on the Transmission ECU:
C2318 Low Voltage Error(Power supply Malfunction).
Cleared it and didn't show again even after driving 200 milesIs
there anything behind this area that can cause that noise? or something responsible of reducing the engine noise might be damaged or broken?
I first noticed a strange noise coming from the engine compartment a day ago. I had left the car to sit in the sun for a few hours. When I got in the A/C was set to on and the system was on auto. I tested to see if the noise went away when I turned off the A/C and it did. I turned it back on and it returned. I know the A/C operates at different speeds based upon cooling needs and that it can get sort of noisy but I didn't think that it could/should get this loud. The system seems to begin working quickly and it does seem to put out cold air. If the noise is unusual do you think that it indicates another underlying problem in the A/C system?
Just to clarify, the ICE is not running in the video. The cabin fan is set to low and the temperature is set to low. The person in the car presses the A/C button and the cooling fans in the engine compartment come on as well as the A/C unit. The sound gets louder a few seconds in. Here is the link to the recording I made of the sound.
I purchased a 2013 RX450h in May. Now that it's getting cold I've noticed that when I start the car I get a moderately loud "whirring" sound from the dash for the first few minutes after I start the vehicle. It sounds similar to a cassette tape being rewound or something. It seems to originate from inside the dash, behind the CD player and other controls. This only happens when it's quite cold out (below freezing or thereabout).
View 2 RepliesMy 2011 F-150 Super crew eb has started to have a knock that comes from under the dash in the radio area. It doesn't occur every time it's started. It is 3 or 4 knocks that sound like a plastic gear slipping, then it stops. I am thinking something in the vent/defrost door. Is it vacuum operated or electronic? Any thoughts?
View 4 RepliesI have noticed the past months (maybe for a while, probably picked it up just a few weeks ago) when I accelerate, I hear this grinding noise, but once I let go of the gas pedal, and slowly get back on it, the grinding noise goes away. To give a better example, when I step on the gas as I normally do, this grinding noise (it is coming from the front, I feel like it is coming from the passenger side, can't confirm 100%) but once I let go of the gas pedal, it goes away. The noise itself starts when I start picking up speed from a full stop, so when I am going at around 0-30 MPH I hear the noise, after that, I honestly can't tell (road noise may be blocking it off, not sure).
I went around the car and tires, and everything looks fine, I have no error codes thrown at me, thus, I am posting here as I really want to fix this issue as it is really bugging me. (It doesn't impact my drive, but that grinding noise is definitely not the normal sounds of a Prius).