03 C4S front noise rattle?

[goldgun]

Hi guys

i posted a while back about this,have a 2003 C4S 27000 miles,im the 2nd owner,clean fax nice car,had(still have) a noise that seems to be coming from the front left wheel area and changes with road surface,its been to a porsche dealer and 2 indy shops,porsche dealer thought it was wheel bearing,changed both sides and still have noise,they said it was normal road noise,one indy said it was road noise,the other indy said something is causing the noise but cant see anything,he also said it may be the axle or front diff but wont know for sure unless he takes it apart,have also changed tires have Sumitomo's,no change in noise,new rotors and pads(it did need them anyway,no change,new front diff oil still no change,i dont believe this is road noise,getting pretty fustrated,what do i have to do to find the problem,any input please

Thanks Albert

[drateam]

Two questions, since I have an 02 C4S that had a mysterious noise that finally was fixed: are you sure the noise is coming from the front; what type of noise is it (sounds like . . .)? Over the months that I tracked down my noise I picked practically every part of the car as the source of the noise and the cause ended up not being where I thought it was - it was a bad weld between body panels at the rear of the car. Hope this helps some.

[goldgun]

Two questions, since I have an 02 C4S that had a mysterious noise that finally was fixed: are you sure the noise is coming from the front; what type of noise is it (sounds like . . .)? Over the months that I tracked down my noise I picked practically every part of the car as the source of the noise and the cause ended up not being where I thought it was - it was a bad weld between body panels at the rear of the car. Hope this helps some.

it really sounds like its coming from there,the noise is hard to discribe,its like a rattle but not a steel to steel rattle,i did think that it may be somewhere else so i am going to check the whole car out,how did you find the weld?

[demosan]

Hi guys

i posted a while back about this,have a 2003 C4S 27000 miles,im the 2nd owner,clean fax nice car,had(still have) a noise that seems to be coming from the front left wheel area and changes with road surface,its been to a porsche dealer and 2 indy shops,porsche dealer thought it was wheel bearing,changed both sides and still have noise,they said it was normal road noise,one indy said it was road noise,the other indy said something is causing the noise but cant see anything,he also said it may be the axle or front diff but wont know for sure unless he takes it apart,have also changed tires have Sumitomo's,no change in noise,new rotors and pads(it did need them anyway,no change,new front diff oil still no change,i dont believe this is road noise,getting pretty fustrated,what do i have to do to find the problem,any input please

Thanks Albert

Albert,

I have an '02 C4S and have had a front end noise issue that I tracked down to my car having the shorter sport springs which when the car is raised on jacking points the springs can mis-seat on the spring mounting surfaces resulting in a strange grinding noise when turning the front wheels in any direction. In my case, this was rather easy to find, so your noise issue sounds much more subtle, but I offer it as possibility anyway.

Good Luck!! demosan

[drateam]

Two questions, since I have an 02 C4S that had a mysterious noise that finally was fixed: are you sure the noise is coming from the front; what type of noise is it (sounds like . . .)? Over the months that I tracked down my noise I picked practically every part of the car as the source of the noise and the cause ended up not being where I thought it was - it was a bad weld between body panels at the rear of the car. Hope this helps some.

it really sounds like its coming from there,the noise is hard to discribe,its like a rattle but not a steel to steel rattle,i did think that it may be somewhere else so i am going to check the whole car out,how did you find the weld?

Mine was a rattle - like pieces of metal hitting. It was speed-specific and always happened over rough roads. I found it only by process of elimination. Was pretty sure at first that it had to do with the seat belt fastenings, so started there. It took months, and finally a mechanic using Porsche's noise finding tools tracked it down to the back of the car. Everything came out of the back interior, and he found the spot where there was a bad weld. Easily fixed and never been a problem again. So, for me, it was worth paying for a Porsche tech to snoop around - I spend tens of hours and never even got close. Hope this helps.