Sign in to follow this  
Followers 0
grstephen

VW Sharan power loss, hissing brake pedal.

3 posts in this topic

For a couple of years my Sharan had a slight hissing noise from the brake pedal. My trusted mechanic checked it out, found no obvious leak but reckoned it was harmless. A month ago it suddenly became much louder, like a leaking balloon, brake pedal stiffened and he replaced the servo. At the same time as the increased noise the car seemed to lose power, no acceleration beyond about 40mph. At first he thought this was somehow connected but the fault remained after brake repair.

Computer showed up a faulty Boost Pressure Sensor which he replaced to no effect. He has checked for leaks, tried replacing the MAF, loosened off the VNT vanes which seemed stiff but nothing works.

Does anyone have any idea where the fault might be?

Graham

Share this post


Link to post
Share on other sites

Welcome to Tyresmoke +++

Does the hissing noise only happen when you press the brake pedal, or is it constant?

Share this post


Link to post
Share on other sites

The hissing sound used to stop when I used the pedal. Brake problem is now fixed according to my mechanic but car is is now left with the acceleration/turbo problem which he is having difficulty tracing.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0