Mechanical gurus needed...
#1
Mechanical gurus needed...
My 2005 CTT recently started making a whirling noise on startup. First thing that popped in my mind was the starter. Typically, a bad starter will only make noise as soon as the engine starts, caused by the starter drive not retracting and disengaging from the ring gear on the flywheel. The funny thing is that it only makes the loud whirl when the car starts in cold temperatures...we've been seeing single digit temperatures. Once the car is off and running, startup's with a warm engine no longer make the whirl.
Unlike other vehicles, the started on the Cayenne is (1) very pricey (upwards to $600-800 new, $400-600 rebuilt and (2) located under the intake manifold and a little labor intensive to get to.
Is this a failing starter or is the noise coming from a dry bushing in the bendix drive?
Any opinions?
Unlike other vehicles, the started on the Cayenne is (1) very pricey (upwards to $600-800 new, $400-600 rebuilt and (2) located under the intake manifold and a little labor intensive to get to.
Is this a failing starter or is the noise coming from a dry bushing in the bendix drive?
Any opinions?
#2
My 2005 CTT recently started making a whirling noise on startup. First thing that popped in my mind was the starter. Typically, a bad starter will only make noise as soon as the engine starts, caused by the starter drive not retracting and disengaging from the ring gear on the flywheel. The funny thing is that it only makes the loud whirl when the car starts in cold temperatures...we've been seeing single digit temperatures. Once the car is off and running, startup's with a warm engine no longer make the whirl.
Unlike other vehicles, the started on the Cayenne is (1) very pricey (upwards to $600-800 new, $400-600 rebuilt and (2) located under the intake manifold and a little labor intensive to get to.
Is this a failing starter or is the noise coming from a dry bushing in the bendix drive?
Any opinions?
Unlike other vehicles, the started on the Cayenne is (1) very pricey (upwards to $600-800 new, $400-600 rebuilt and (2) located under the intake manifold and a little labor intensive to get to.
Is this a failing starter or is the noise coming from a dry bushing in the bendix drive?
Any opinions?
Last edited by porschespeeddemon; 01-10-2010 at 07:48 PM.
#3
- bob
#7
Tee-hee, you said 'bendix drive'. (I have no idea what that is...)
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#9
Thanks for your input, but I am fairly sure it is not the air pumps. I know what they sound like, and I just rebuilt the compressor. The noise only occurs on startup for less than a second.
#11
Are you planning on installing it yourself? My understanding is that the unit is located under the intake manifolds. If I decide to tackle this...I'll be sure to do a DIY post.
#14
I will probably attempt it myself and do the coolant pipes at the same time. But I'm all for you trying it first.. If you need some info from the manual, let me know, I can send you some PDF files.
Andy
Andy