I have an 07 v6 3.6L (50Kmi) that makes screeching sound upon startup for 15-30 seconds. Not belt/pulley noise, more like valve lifters without oil noise. Trying to decide whether to go to the dealer before the power train warranty expires or to leave it alone.
View 1 RepliesMy 97 Nissan pick up, 2.4L I4, 5 speed 182k miles has developed a screeching sound for about 15 to 30 seconds after starting. It sounds like a loose or slipping belt. I have replaced all three belts and the tension is right.
I pulled all the belts again and put them back on one at a time and determined that the belt for the water pump and alternator is the source. I checked all pulleys and components and cannot find anything with abnormal drag or roughness or noise.
I though maybe that I might have put too much tension on the alternator belt and maybe put to much side load on the alternator bearing so I loosened it slightly and that just made the screeching last longer. I also noticed that the duration of the screeching is extended when there is a load on the alternator, such as the blower motor or the headlights.
Once the screeching stops, it does not come back even with sudden changes in rpm or changes in load, i.e. blower motor or headlights, however, every time the compressor kicks on, there is a chirp. Before I replaced all the belts, the compressor belt was slipping on occasion and every time the compressor kicked on, it would screech for a few seconds, but its not AC weather right now.
I pulled off the alternator today and took it up to be tested to see if it would screech on the test set, not a peep and passed all tests. BTW, I am not having any issues with charging or starting, the battery is good. I did notice a wire bundle that runs under the air cleaner has abraded and one wire is bare, I'll address that tomorrow. I don't see any evidence of shorts in the bundle, all the abrasion is on one side and only one wire exposed, and it only touched plastic as far as I can tell.
Also, I cannot visually detect the slipping, the belt and the alternator appear to be moving smoothly, same with water pump, but its hard to tell because everything is spinning so fast. also, it is not bad if you just do a restart after driving, is will only screech for a second or two, but if it cools down, than it back to the 15 to 30 seconds of screeching, and its LOUD.
Yesterday I started the car, backed out of the driveway, and as I was starting out in first I heard a screech-like sound for about 3 seconds, then it disappeared. It sounded like a belt or pulley might be slipping. There was no smell and the car ran fine and quiet after that.
I'm beginning to get worried with this car. I have a check engine light on, the suspension is clanking again, and I saw an abs light for about 5 minutes one day a couple of months ago. My wife claims to have heard a grinding sound in second, but I haven't heard it yet. I'm at 6 years, 3 months of ownership, with 85 K on the ODO. It seems like these cars are designed to drive worry free for about 80K. After that, things just start falling apart. I really wanted to make it past 100K, but now I'm not so sure...
I have a problem that my Treg makes a terrible grinding noise when starting in the morning. It sounds almost like a bad bearing or something. It lasts anywhere from 3 to 8 seconds.
View 5 RepliesWe love our Treg, but I am not happy about the clatter (like not lube for a second or two) when starting in the morning. Temps are warm this time of year. Otherwise, everything OK.
View 1 Replies2001 Prius. Within 15 seconds of starting the engine, I captured the screeching sound from the engine bay. Noise went away after about 20 seconds. New serpentine belt and new 12v battery installed. Pass dealer 27-point check. Transmission fluid, inverter fluid, high voltage battery were replaced about 18,000 miles ago. Current mileage 174,000.
Noise is not from the serpentine belt. I attached a mp3 file of the sound. "2001 Prius Noise.MP3" ..... Which component is making this noise?
For the past day, when I turn on my 2008 Ford Taurus X, i hear a repetitive flapping sound for about 15 seconds. It seems to be coming from the center of the dashboard. It sounds like " bap bap bap bap..." My son said it sounds like a metronome. Is this bad??
View 3 RepliesI recently bought a 2006 Hyundai Sonata 3.3 V6. Had another issue related to the rear wheel, which I fixed. Today, I changed the oil filter on the car (along with the oil). I have heard this engine noise before, but with the cover off it appears a little louder. It's basically a ticking sound.
The engine uses no oil, and has no other leaks. It has some noise on startup for maybe 1-2 seconds (like a loud lifter or something, but it goes away in less than 2 seconds, and at the same time the oil light goes out). I changed the filter today because I was told that a leaky gasket could result in the Filter not retaining oil between starts, causes some minor knock for a few seconds.
But anyway, this other ticking noise seems to be regular, regardless of condition. I have heard some people say that some engine noise is normal for this engine, but how about this?
I've been experiencing an intermittent screeching sound that is emitting from the engine compartment. I've attached a zipped sound bite of the screeching sound, starts at about 7 seconds into the recording.
The screeching sound is not audible if the car is moving while in neutral or when it's parked idling. The screeching was noticeable as I gave it gas when parked or was in gear as the car was moving; as though as the RPMs increased a defective belt or pulleys rotational speed is causing the sound?
The sound just started while driving home from the store which is about a 10 min drive, no freeway speeds. I had not driven the car all day and it had been garaged. I had recorded the sound bite once I got home before turning off the car. Restarted the car a few time, sound persisted. Started the car the following day to take to the dealership, no screeching sound, all sounds normal. Possibly engine compartment temperature related?
This is the second time I've experienced this screeching sound, first time was about 2 months ago and had not heard it since until the other day. The dealership was unable to reproduce the sound when I took it in the last time.
My engine every now and then makes a lot of noise at startup for about 5 to 8 seconds at that same time the idle is very rough seems as if it is running on 2 or 3 cylinders instead of 4 after that it runs perfectly and is very quiet the car has almost 198000 miles on it
View 1 RepliesTo get straight to the point: I have a 2013 GTI that has recently started making a screeching noise on cold starts and during engine acceleration (not necessarily heavy load, but actual engine speed acceleration).
I recorded a video of it this morning and it is very easy to discern the sound. The car is APR stage 1 tuned and has a south bend clutch but I don't think either of those are related to the sound. The water pump has been replaced from the service bulletin, the auxiliary belt tensioner has been replaced because it started to make a noise (this noise is completely different). Otherwise the car has never given me an issue, it has been maintained exactly per the OEM repair schedule other then oil changes every 5k miles vs. 10k. I use mobil 1 0W-40 oil.
The video link: [URL] ....
My F450 2010 class C motor home has the V10 engine. In the RPM range of about 2200 - 2300, there is a screeching sound I believe is from the engine area. It does not matter what transmission gear I'm in thus the vehicle speed is not a factor - only happens in that engine RPM range. Seems to happen when slowly accelerating or decelerating through the 2200 - 2300 RPM range or continues to screech if I maintain that RPM. If I drop back or increase RPM out of the range it quits. If I accelerate thru the range a little quicker it doesn't happen. Also does not happen when parked and the engine is sped up.
View 7 RepliesHave a 2011 F150 with the 5.0. 91K miles. On startup-cold or warm-there is a ticking/tapping noise coming from the engine for about 3-5 seconds then it goes away. Happens on every single start. Sound like it's coming from driver side on top of engine, but hard to pin point.
View 3 RepliesI've got a 2003 f150 with the 5.4 and 128,000 miles with an engine tick. Its not an exhaust leak I know that for sure. It has came up in the last 20,000 miles. I've used motorcraft 5 20 w/ motorcraft filter. I've tried a kreen engine treatment with no change. Heres the description/syptoms:
-Slight clatter for 2-3 seconds upon cold startup (happens very rarely)
-top end ticking that is loudest and most noticable when warm (quieter when motors cold)
-not timing chains/tensioners etc because the noise is coming from the top end and most noticeable on the passenger side.
-at idle the tick is present-when you rev at idle, the noise goes away.
-Driving (or having the engine under any load for that matter) the noise gets louder.
-Anytime I accelerate, tow/haul, go up an incline the noise gets worse
-Sounds like a "whirring" sound from within the dash.
With all that said I am thinking the lash adjusters are getting noisy. I had a certified gm tech that has 40 yrs mechanic experience under his belt and builds prostreet muscle cars on the side look at it. He listened to it to it and that was his diagnosis as well as its not that bad so just live with it. The noise at idle doesn't bother me, its when im driving with the windows down. The noise drives me crazy and is a little annoying to me.
Heres a link to a video of the sound and keep in mind it is much louder now : Triton engine noise/tick - YouTube
I had major tune up on my vehicle. First I had the timing belt and accessory belts replaced including of course the water pump. I also had the shocks replaced. My question is now everytime I start the car I would hear a screeching noise for several seconds and also when I engaged the a/c. Furthermore, in regards to my shocks when I drive over 60 mph my steering wheel begins to vibrate tremendously.
View 1 RepliesI hear a loud screeching noise (like a loose belt) when the 2009 Corolla starts cold. It disappears and when the car gets a little warmer, it's gone. I had the belt replaced, made no difference. Car runs fine, otherwise.
View 1 RepliesRecently my Passat has been making this really weird deep subwoofer-like sound when I turn it on... you can hear it from outside and inside the car... and it completely stops once I start driving or turn the car off and back on. What this might be? It seems to come from the right side of the car more than the left.
View 2 RepliesI have a 1996 Ford Escort with ~128,500 miles on it.
When I start the engine (either cold or hot), occasionally the engine will sound like it is missing and, if I step on the accelerator to give it more gas, after ~10-15 seconds the engine runs fine and the problem disappears. The engines shuts off if I don't step on the accelerator.
This happens approximately 3-4 times per week and I drive the car every day. I never know when the problem will arise.
I took the car to a Ford dealer to have it looked at and the mechanic, without doing any testing, said that it was either a leaking head gasket or a cracked head. The mechanic later then ran some tests upon my request and confirmed that it was not a leaking head gasket or a cracked head. No further tests were performed at that time, so I still am left without any definitive answer as to what is causing the problem.
One year ago, after driving 8 or so hrs., at 108,000 mi, my 2003 Buick Rendevous started making a groaning sound which would last 15-30 seconds. When exiting the turnpike, the sound lasted nearly 1 min. The next day, the Buick dealer could find no cause but put a new serpentine belt on it which solved the problem for a few months. (I had previously replaced the serpentine belt at 96,000 mi as routine maintenance.) After a couple months, I heard the sound again and took it to my local Buick dealer who could find nothing. It was o.k. for about 6 mo. Now it groans again. My local mechanic heard it but could find no cause. It groaned almost constantly a couple days ago while I was driving in slow traffic w/the a/c on but quit when I turned the a/c off. It sometimes groans with the a/c off, especially on a turn from a stop sign. I now have 114,000 mi. The sound seems to be originating from the engine.
View 2 RepliesI hear a bit of exhaust leak noise from engine compartment only at a cold startup, it goes away in seconds. I am 700miles from home. If it's a nonessential fix i will drive home before fixing, or, if an easy gasket replacement, I have two more days here, and tools,garage, and competent support to diy the job.
View 4 RepliesI have a 2013 Santa Fe, 2.2 Diesel AWD and have recently experienced this popping sound. The sound is normally noticed within seconds of switch off the engine and is loud enough to make people jump with surprise. When I originally complained I was told this was normal ... nonsense I said as having owned vehicles from various manufacturers(Nissan, SAAB, Renault, VW, Chrysler, Mazda, Lexus) over the last 25year I've never experienced anything like this. Car is back in for a 90K klm service and repeated my complaint - lets see what happens. To me this is coming from the catalytic converter and when I look at the box underneath the car it has numerous bump/dents on it yet has never been offroad.
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