PART 2 Video - Weird engine noise

[Pisendar]

Originally Posted by m5james

I yell at them to turn on the subtitles or speak English

[Pisendar]

Originally Posted by m5james

Of the ones I've replaced, I never had anything sticky on there from the belts, but sometimes the squeeling would happen from changing cooling system parts and the glycol from the coolant sticking to the belt, pulleys, etc. That's why I use dish soap to check to see if the noise goes away...if it does, hosing down the same area w/ dishsoap all over it will give a quick washing/degreasing before installing the new belt.

Also, doing the dishsoap will help him narrow down if it's the belt, but if it still squeels after that, then I'd start leaning towards tensioner. Sometimes you can actually see a tensioner failing though because the belt will almost flop around, looking like it's hopping on the tensioner because it's gone weak and/or broken parts of the spring/seal internally.

by reading all this ,,, makes me think i dont know english

dishsoup where do i have to apply it ? just take of the cover and apply it on the actual belt ?

[m5james]

There's no need to remove the engine dressing cover. Just take the smallest bottle of dishsoap that you have around the house, start the car, open the hood and try to squirt a little stream of it on the belt...preferebly on the grooved side of the belt. If the noise stops, you've found your culprit.

If it doesn't, then watch the tensioner to see if it's hopping around like I mentioned above. If it seems to be holding the belt nice and taught, then shut off the engine and pull on the belt near the tensioner, it should be nice and firm but have about an inch or so of give if you really tug on it.

If the tensioner is nice and firm and isn't hopping around, then I'd suggest to startup the engine again and spray some WD40 onto the pulleys where it bolts to each accessory (alternator, waterpump, etc) and see if the noise changes...just make sure to not spray so much that it splatters all over the place so you can keep it from getting on the belt.

Once you isolate the noise, spray down the engine bay around the belts to rinse away the soap, go ahead and replace the belt regardless (due to your mileage and any potential WD40 splatter if you had to spray the pulleys) and then replace whatever parts as needed. Replacing the tensioner and/or belt is quite easy, it's just a tight area depending on if you remove the fan clutch and blade or not. Personally I just wiggle the belt around everything, but I've got the fan clutch tools if needed.

[mywidebody02]

Originally Posted by Pisendar

did u fix yours ?
if its idler pulley ,, i guess it is very cheap part by itself , around $20 ..,, what about labor ?

didn't do my pick up yet but that it easy. The X5 is more difficult cause its half way down.

[NY98M3]

Sounds like the bearing in the idler pulley

[schurikde]

Originally Posted by Pisendar

Привет ... Чеченец , но близко.
ты С Германии

да я сибирьяк с ФРГ... удачи с ремонтам.

Good luck for fixing your X5.

[Pisendar]

Originally Posted by m5james

There's no need to remove the engine dressing cover. Just take the smallest bottle of dishsoap that you have around the house, start the car, open the hood and try to squirt a little stream of it on the belt...preferebly on the grooved side of the belt. If the noise stops, you've found your culprit.

If it doesn't, then watch the tensioner to see if it's hopping around like I mentioned above. If it seems to be holding the belt nice and taught, then shut off the engine and pull on the belt near the tensioner, it should be nice and firm but have about an inch or so of give if you really tug on it.

If the tensioner is nice and firm and isn't hopping around, then I'd suggest to startup the engine again and spray some WD40 onto the pulleys where it bolts to each accessory (alternator, waterpump, etc) and see if the noise changes...just make sure to not spray so much that it splatters all over the place so you can keep it from getting on the belt.

Once you isolate the noise, spray down the engine bay around the belts to rinse away the soap, go ahead and replace the belt regardless (due to your mileage and any potential WD40 splatter if you had to spray the pulleys) and then replace whatever parts as needed. Replacing the tensioner and/or belt is quite easy, it's just a tight area depending on if you remove the fan clutch and blade or not. Personally I just wiggle the belt around everything, but I've got the fan clutch tools if needed.

car started having noise while driving more than 50 MPH , and its kind of anoyying ....
i will try to follow your instructions , and put some soup one the belt .. will see if it changes...

[amacman]

soap
Soap - Wikipedia, the free encyclopedia

[Pisendar]

Originally Posted by amacman

soap
Soap - Wikipedia, the free encyclopedia

its ok ,,, its excusable for foreigners But thanks anyways

[Pisendar]

YouTube - Belt or Pulley noise while driving x5 4.8is



Please watch . I made a video while i was driving ,, you could hear the noise , and once i start breaking noise goes away.


m5James - is right, due to the mileage i have , its time to change the belt no matter what. And possibly pulley as well