Boxster Technical advice

[CLIFFWILKINS]

Hi all Boxster members.
Just a polite reminder we have an excellent Boxster technical team for all models
Tracy & Myself always on hand also.
Nike Pike
Steve Winter who owns Jaz Porsche in St Albans
Our aim is to help out where possible.

 

[BBejaoui]

Hi Guys,

I hope you can help. The pressure line to the Power Steering Rack got blocked and I am looking for a replacement, a second-hand will be fine and any idea how to remove it. Mobile 07766958739 Cheers

 

[CLIFFWILKINS]

Hi.
Give Steve Winter at Jaz Porsche an Email he owns his own Porsche garage
He is one of our Boxster technical guys.
Cheers Cliff

 

[daveport9]

Good Morning all.
Our 718 Boxster GTS 2.5 has just developed a whining noise that starts after a couple of miles. Gets louder with speed and continues when coasting. It whines and hums the most around 50mph. Cars on 38k. It started after a long drive down to Devon. I have lifted all 4 corners and spun wheels but can’t feel any vibration/play or noise over brake rub and presumption tells me it needs to get warm before the noise starts. Logic tells me it’s wheel bearing but wonder if there’s anything else it could be?
Thanks
Dave.
PS: Just enjoyed a brilliant weekend at the Silverstone Festival.

 

[Motorhead]

Hi Dave,

I’m assuming that you’ve discounted anything engine-related by revving the engine in neutral … alternator, polybelt tensioner, etc.

If it’s a wheel bearing the sound sometimes disappears or changes when cornering as the bearing becomes loaded.

Whines can be transmission-related, but generally are modified by throttle on-off activity. Does the whine change in tone when you back-off the throttle at 50mph?

Jeff

 

[CLIFFWILKINS]

Hi Dave.
A friend had this on his C4s checked everything like yourself.
Turned out to be tyres he changed the rears noise went.
So don't dismiss tyres too.
Hope you get it sorted soon

 

[daveport9]

Hi Dave,

I’m assuming that you’ve discounted anything engine-related by revving the engine in neutral … alternator, polybelt tensioner, etc.

If it’s a wheel bearing the sound sometimes disappears or changes when cornering as the bearing becomes loaded.

Whines can be transmission-related, but generally are modified by throttle on-off activity. Does the whine change in tone when you back-off the throttle at 50mph?

Jeff

It continues when coasting, Car’s going into Porsche next week. Will keep this updated. Thanks for replies.

 

[CLIFFWILKINS]

It continues when coasting, Car’s going into Porsche next week. Will keep this updated. Thanks for replies.

All the best hope it's something simple

 

[Motorhead]

Oddly enough Cliff’s post has reminded me that years ago I suffered a similar problem with a rear tyre on my old 2007 Golf GTi, but this was a heterodyning problem [a wa-wa-wa sound] rather than a constant whine. The tyre had plenty of tread but probably was quite old … being front wheel drive the rear tyres wore much more slowly than the fronts. Replacement cured the problem.

Check your tyre tread depths, and the age of the tyres can be determined from the numbers on the sidewalls [year and week number]. Anything over 5-years and you may want to think about replacements.

Jeff

 

[911hillclimber]

Had a similar 'tone' drumming in the chassis from the rear on smooth roads, about 40 to 70 mph (when road noise drowns everything).
This tone arrived quite suddenly on hols in Austria with the car and after a long hot run on billiard smooth 80 mph road.
I checked a lot at the back, found nothing, suspected the gearbox ( bearings?), but the tone did not change for many months, really irritating.

Rear tyres eventually wore enough to change them, N spec Bridgestone 19", changed like for like.
Old ones 4 years old (I drive the car gently...)
Tone went away with the new ones.
12 months on all's well.

 

[CLIFFWILKINS]

Might be worth it if you know someone with a Boxster to try his or hers wheels and tyres