JBRipps

Hi all....

well....car has been making some strange noises today....and my search really doesn't cover too much, so here goes.

When the car is cold....b/w 1 and 2k rpm....there is an awful whine, almost like a loud groan from the engine, especially as the car winds down. It almost sounds like there is an extra belt running, if you understand that reference. it does not effect the performance of the car, but is very very annoying and obviously not proper. When I slow down and the car is under 100 degrees....it's very loud when it winds down.

at higher rpm's....it's not so apparent and never really fully goes away when the car is at operating temperature. This just started today. Almost sounds like something hydraulic is going on around the engine...very odd. Any input??

J

1999Porsche911

May be a pulley or water pump. Tensioner pulley is known to have problems. You can quickly eliminate belt or pulleys by removing the belt and see if noise is elminated.

steve germany

Tensioner pulley is the most common cause for this type of noise. Cheap fix.

ArneeA

Another vote for tensioner pulley or water pump. I had mine both replaced under extended warranty.

JBRipps

Thanks fellas....CPO hopefully covers whatever the issue is. Didn't know if it was just a cold weather thing....guess not. how long will i be able to drive before the issue gets more serious?

j

steve germany

Place a screw driver (long) agains the nut holding the pulley and you should be able to hear if this is the problem. It sounds like yours is well on the way out. I would not trust it for more than a week after it started. If it locks up your will be parked.

JBRipps

Hi Steve...thanks for the pointer. I haven't done any DiY on this car yet....which pulley would i do this to? Would I do it while the car is idling?

J

JBRipps

hmmmmm......noise is much more noticeable when i'm cold and idle, and when I turn the steering wheel, even just a little.....so I checked the power steering fluid while engine was hot.....nothing on the dip stick. Off to get some fluid...I'm hoping it's that easy. If it is....i'll have to see if there is a leak.

I'll keep you posted.

Tippy

You must have a leak in the power steering system. Fluid expanding once warmed probably explains the lack of noise.

Glenn

Check the pulley on the power steering pump as well while you're in there. I'm replacing the water pump this weekend. The noise for it changes with revs and does not diminish when the car is warm.

JBRipps

hi all....actually writing this from my new phone.....really cool....hope it works. filled up with fluid....no more noise....for how long?....who knows. i still feel like i'm hearing a low whine but i think it's the normal sound of the engine....i'm making myself crazy.

Doug Donsbach

You used the correct fluid, right?

JBRipps

wow....it worked!....has anyone else been able to do that?

J

JBRipps

yes...looked in the manual....that expensive green can....forgot what it's call...ends with number 11 i believe.

thanks...

J