BMW :: 1999 - Noise Coming From Motor?


Aug 11, 2011

I have a 1999 3 series BMW, 115K, 5 speed, always used full synthetic oil, as did the previous owner. After a cold start, even at moderate/warm temperatures (65 degrees), for the first 2 - 3 minutes after the RPMs go over 1200 or 1300, I hear a noise from the motor, almost like a slight rattling/scraping sound of sorts, not very loud. The BMW dealer advised it is a known problem from new, and that the solution is a new oil pump. They advised that the repair is not necessary and to keep driving. My hunch is that the top of the motor is not being sufficiently lubricated after the cold start. I should further add that the car drives great, and I just took it on a 750 mile highway trip without any problems. The oil light always goes out, even on a cold day with a cold start, within 1 second after starting.

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Celica :: Knocking Noise Coming From Motor

I've had this strange knocking noise ever since may coming from my motor. I thought, it might go away if i push the car a little. But it's been 6 months, and the thing is still going hard. What I'm experiencing is kind of a knocking noise, something akin to marbles being shaken up in some kind of jar, and it is only at partial throttle. Starts at 2000 rpms and goes all the way until redline. What it could be? Engine sounds perfectly fine at idle, power is still there. MPG's are the same... I've also read a couple threads that indicate that it could be my intake manifold, I am really not that good with cars, shameful but i admit.

Btw while i was browsing found a repair manual on the net [URL] ....

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Sonata NF (2006-10) :: Ticking Noise Coming From Motor

So i am looking to buy a 2007 Sonata 4 cylinder with 145K miles. There is a ticking noise coming from the motor. Sounds like a lifter tick. You can here it all the time even after its warmed up. I just don't know much about these cars.

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Lexus GX 2004-09 :: Clutch Fan - Noise Is Coming From The Front Of Motor

About 2 months ago,we noticed a slight noise when first starting the truck in the mornings.The noise was so faint,I could never tell where it was coming from.The noise went away when vehicle warmed. This morning,I drove it for the first time in a while,and its pretty loud now. Its definitely coming from the front of the motor somewhere.I am thinking it sounds like bearings starting to go bad.When looking at the fan spinning from the side of the truck,it does not spin true,there is a very slight wobble. With the motor off and grabbing the fan in the middle,with force,I can very slightly wiggle it back and forth. I should NOT be able to do that,correct?

By the way,truck has 142,000 miles on it and the water pump and timing chain were changed at 117,000 miles.

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I bought my 2006 Sonata with the 2.4L when it had 115,000 and it currently has 130,000 on it now. Ever since I bought it I noticed it had a ticking noise coming from the motor, it makes the noise constantly, it doesn't matter if the motor is hot or cold. I've always been a little worried about the noise. The car does runs like it should though. What it could be?

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I'm guessing it's some kind of gas tank related valve that's closing, but it's making a very loud noise each time.

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I got under the car to try and determine the exact location of the noise, It sounded to be coming from the gas tank area. Could it be a fuel pump kicking on?

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Sonata I45 (LF 2015+) :: High Rev Engine Noise / Raspy Sound Coming From The Motor

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At WOT, starting around 5500 rpm and going until redline, there is a "raspy" sound coming from the motor that I think might be predetonation, but I'm not sure. It isn't very loud, which is why I originally ignored it, but it is easily noticeable inside the car. I've made some modifications in the past few weeks (Intake, OCC, and Exhaust) so I'm starting to have a bit more fun with the car and want to make sure I get this resolved before it becomes a bigger issue.

Out of curiosity, I looked inside the catch can and noticed a couple drops of fluid (lighter in color), which was surprising since I only installed it ~50 miles ago. Any by "a couple drops" I mean maybe 3mL of fluid. Not sure if that is significant in this case, but I figured it is worth mentioning.

I'm wondering if it could just be the altitude (Denver, CO) and the stock tune is off just a bit? I've been looking into the Lap3 Uncle Chip and HKS performance plugs, but am hesitant to go any further without better understanding what might be happening.

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What is this noise? - YouTube

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I have a 97 250 LD 5.4 that suddenly has a grinding noise coming from the area where the transmission and motor meet. I took the inspection plate off the transmission and can look up inside there and see everything moving. I use a screw driver and if I flex the plate that mounts between the transmission and the motor I am able to get the noise to quiet down until I release the screwdriver and then the plate flexes back and scrapes making the noise again.

I can not see where the plate is grinding when I look up inside there. I can't figure out how to fix this.... Why it would just start doing this on its own as none of the bolts on the housing have been removed except for the two bolts that hold the starter on. (Changed it a couple of weeks ago). Thought about loosening the bolts on the tranny housing but I'm afraid that it would open me up to further problems???

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The noise seems to be coming from the top front of the motor. Could this be fuel pressure bleeding off? Is there a check valve that is maybe not doing it's job??

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I have a 2002 F350 Triton V10, Automatic 4x4 Lariat. I have a tapping noise in my motor, and I've had people tell me it could be the timing chain slapping around, a rod or lifter. The tapping noise gets quieter after the motor has warmed up, but gets louder when given gas. I've been told to try thicker oil, pure gasoline (no ethanol), The truck runs fine for the most part except for a vacuum leak on the top part of the motor underneath the throttle body. I have someone that says they can work on the motor and so on. But I don't know where to look to buy the parts for the motor, and what I should have replaced, while he's got the motor out and apart, so far he said he'd change the lifters, timing chain, the vacuum leak.

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Ford Super Duty (1999-2016) :: 2003 - Blower Motor Loud Rumble Noise?

I have a 2003 super duty V10 4WD super cab long bed.

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When on second speed, almost sounds like blower motor is out of balance. if run on high for 1 minute, smell electrical burning! Think to replace motor will work? will post another issue with radio and power windows

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