Prius (2004-09) :: Engine Started To Make More Noise Than Usual
Sep 7, 2010
2005 has 130,000 trouble free miles. Recently during a long trip the engine started to make more noise than usual. This occurs during acceleration up until the point when you hear the engine really start to work.
I took the car to Toyota and they said it sounded normal. I am picky about my car and know a new noise. My wife even said she can hear it.
I think it sounds a bit like the old lifter rattle my 289 Ford made in my 67 Mustang.
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Our 2010 Prius has about 57K miles on it (mostly highway and rural commuting). The rear brakes just started to make some noise the other day at low speeds. It sounds like a light metallic squeal, similar to a brake pad wear indicator. It only occurs at low speeds and in reverse. Last time I checked the pads, they had lots of life, but that was in the spring.
I'd like to take apart the brakes to service them, but I don't know if this is a DIYer job on a Pruis. I have tons of experience on auto repairs, and have done hundreds of brake jobs (I also perform auto restoration as a hobby and have done almost every type of mechanical work on a car). So I am not really worried about my skill, but I am worried about knowing the proper procedure to do the repairs on a Pruis.
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I have a 2005 STX with the 4.6L, 4WD, AT.
The engine has started to make a loud whining sound recently. I replaced the belt and tensioner since it was original and had 93,000 miles on it. The sound is still there.
The sound increases with rpm but doesn't change when you turn the steering wheel.
The engine starts and runs smoothly with plenty of power.
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I did a few searches with key words, engine, valves, and knock but didn't come up with any info. I know the reason the valves and engine noise is louder than usual is because the oil has had ample time to gravitate to the bottom of the engine. I remember reading some where that the knocking valves when starting up was normal for the Touareg, but can't find the post.
My question is, the engine is too noisy when cold starting? The knocks go away in less than a min or so, but I haven't had a vehicle make such valve noise when cold starting, except older cars that needed valve jobs... Other than the start up knocks.. it sounds and drives great..
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The other night I was going up the mountain and while going it started making a clicking noise..probably from no oil..We had been told from the dealership there was a small leak but nothing to worry about at the moment.We tested it and it wasn't leaking visibly but I guess with it getting cold out the hole got bigger and we didn't notice so all the oil leaked out as we were powering the lil car through the mountains..Needless to say on the cruise down it started shaking i saw some sparks and I think the rod went through my engine block and we broke down. It's completely dead. The car has right around 200,000 miles on it and has always been very well taken care of.I just traded my dad the car about 7 months ago for my 4-runner cause of gas prices..I moved across the country and of course have had NOTHING BUT PROBLEMS since day one.
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04 with 200k miles, car started stuttering like out of gas, when stopped there was a grinding noise from engine. Took to dealer on trailer, when it was taken to the mechanic all problems went away. Changed oil looking for metal chips, none. Did computer upgrade which was the only code on the check engine light.
Drove car for two days on short trips, four or five times 20 to 30 miles. Ran great. At around 40 miles on next day same problem. No lights or codes of any type. Carried to dealer again, they said they were not sure if it is the engine, transmission, or something in between. I was told they would have to take it apart to find out and the least amount it would cost is $5,000.
The grinding occurs when the engine is running only. when revved up it is louder, at idle the noise changes while sitting in park, louder quieter etc. when driving on electric, sounds perfect. (no sound at all)
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So every once in a while, my A/C starts to sound like it's struggling. The force of the air gets stronger and weaker, and it starts to make a whirring noise (much louder than it should be). The temperature is fine, it's just the blowing air.
It will continue like this for weeks or months, then eventually when I start the car (particularly if I'm in my parking garage at work for some reason?!?! - could be a coincidence) the A/C won't blow at all. If I hold my hand near the vent, I can feel cold air - but it's just sitting there, not getting blown into the cabin.
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My power steering started to make noise. I checked the power fluid and it was empty. I refilled it and noticed a leak.
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I've been noticing on the 2006 I've purchased recently with 120k miles now, the MFD would show the ICE engine no longer is on and proving power when I cruise to a stop. However when I'm actually stopped, I noticed the ICE engine is still on, about 5 seconds after I make the complete stop, I then notice the ICE engine shut down. Although there are no DTCs on the car, this seems to baffle me on why it's happening. The mpg average on the car is lower than my other cars, it can be anywhere from low 40s to about 45mpg on the MFD. What could be causing this?
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Front discs and pads replaced about 10k ago and still under warranty - work done by my mechanic whom I have been patronizing for the last 8 years. When the brakes are applied at 40 MPH plus, get a low pitched "HMMMMMMMM" type of sound that goes away as the car decelerates through 40. It is sort of annoying but the brakes work perfectly fine. A mechanic that works for the shop rode with me and listened, and didn't offer much of an explanation or offer to remove the wheels and inspect the brakes. In other words, he cited this as normal. Would it be advisable to get a 2nd opinion? I've never had this issue with brakes on other vehicles I've owned, especially with new brakes.
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Just got a diagnostic from the nice people at Prius Battery Repair. Check engine light was on and intermittent red triangle when I make a left turn. Code PO505 came up- Idle control System. I have 162,000 miles and just put in a reconditioned battery that checks out fine.
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I have a 2002 with a 4.8 ... My alternator started to make some noise, and my battery wasn't holding a charge very well so i decided to change the alternator today before it went some were out in the boonies. After i put the new alternator in, the battery light started flashing in the "message center" but everything seems to be running fine. The voltage gauge in the dash is reading about 15. So from there I turned everything on in the truck and the gauge barely dropped. At this point I'm not sure what to do, I'm going to put the old one back on and see if it goes out, oh I also put some tension on the belt to make sure it wasn't slipping.
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Just came back from lunch and the car seems to be vibrating more than usual. Engine is making some weird knocking noise. I think I also smelled fuel coming from the car. Could it be the cam tensioner?
[URL] ....
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I have a 2004 Jeep Grand Cherokee with about 105,000 miles. The transmission (or transfer case) recently started to make a clicking sound. It usually happens in 2 wheel drive mode and gets louder as the car warms up. the clicking sound occurs in all gears except park. It also gets faster with car speed. If the car is put into 4 wheel (full time) mode the sound seems to go away or is not as audible. When you shift back in 2 wheel drive mode the clicking sound comes back.
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I have a 2000 mercury cougar 2.5 liter. I bought the car without doing much research. now that i have the car did research and found out all the great problems that this car has. My transmission started to make a clunk clunk noise inside and it started to slip. At first it would go on all gears. then very rapidly started to slip in all gears. In matter of hours went from being good to being crap. i had to accelerate the car to 3000rpm or higher to make the car start moving. So i bought a transmission from a junkyard. I install it and did not work. The car did not move on any direction. I pull it out and look at it and found the small shaft that goes from the torque converter to the gear body was broken. I end up getting another transmission from the junkyard. I check it and everything looked good. I install it and got everything back together and that work on reverse but no forward. To get it on reverse I had to accelerate the car to 3000rpm. I being told that if I change the solenoid inside the transmission might fix the problem. It could be the transmission module that is burned out.
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I own a 2005 Hyundai Accent 1.3 SOHC and a while ago the front right wheel started to make a grinding noise, problem was related to the brake system..
So far I've tried replacing the rotor (disc), repaired the caliper (using a rebuild kit), replaced hoses (both), and event the master cylinder.... and the problem persists, it actually came to the point that after driving a while the front wheels will get stuck.
I've followed all the directions from the service manual and it still got the problem...
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I recently (1.5 months ago) had my clutch replaced because my clutch pivot ball was making noise and with 70000 miles on the clutch, the mechanic suggested replacing the entire thing. The clutch works beautifully, except that just recently my clutch pedal has started to make a squeak/ creak noise. It's not very loud, although it seems louder when it's particularly hot and muggy. It sounds like it is coming from the pedal and it makes the noise regardless of whether the car is on or off. What might be causing this?
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My 06 Prius seems to be a little louder than usual when the motor is running. What could be going on? Just had the hybrid battery, water pump and belt replaced, but it still seems to be making the same noise.
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Couple days ago the cab of my truck started shaking some more than usual. Its gotten worse now, however. Happens the worst around 60-80km, light on the throttle just cruising in overdrive, whole cab shakes badly. Chop the throttle and its completely gone, any heavy on the throttle and it's gone as well. Does it loaded and unloaded. Okay at highway speeds but like i said around 70km its bad. I've got my guesses but what really it is?? Truck runs fine otherwise...
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Twice in the last month, my 2010 Prius has made this incredibly loud noise when the engine first started up. The noise continues for a minute or two, and then stops. The car then runs as normal. I brought the car to my dealer, who after a brief looking-over could find no reason for it. I shot a video of the car making the sound the 2nd time it happened and brought it to the dealership with me to play for the mechanic. No one who heard it there ever heard anything like it before.
It has been really cold here this winter, so "cold oil" was once thought, but was dismissed as unlikely. The car gets 0-20 oil.
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Driving home the other day I noticed some vibrations up front. Reminded me of out of balance wheels. Then the check engine light started blinking. Then it was on steady, then blink, then steady... Took it easy the rest of the way home. Code reader said P0138 Oxygen sensor circuit high voltage bank 1 sensor 2, and P0304 Cylinder 4 misfire detected. At home is where I saw the engine shaking and extra noise from it (visions of piston rod slapping around in there). Removed plugs (original? tough to get out!), compression tested all 4 cylinders (130 to 140), new spark plugs (had they been in there for 196K miles?). Start engine and same, shake shake with some extra noises that weren't there before (car just sitting in driveway).
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