1999 Lexus GS 400 Repair Question
Asked on March 11, 2013
Lexus GS 400 Noise Problem
When turn on key after sitting overnight, brake booster makes squeaking sound as it pumps up. This lasts only seconds. Seems to be increasing in frequency. Is this serious? What is cause? Solution?
Thanks
Thanks
Asked by jconeAnswer
Replied on March 11, 2013
Its difficult to hear what you hear from here, but it does seem to be unusual. Perhaps the booster will require replacement, I am not sure, but it might be a possibility.
Replied on March 11, 2013
On another site it was suggested that the vac line from the booster might be leaking, or its fitting might. It also suggested I move the line around with sound occurring to see if this could be confirmed. ANy thoughts about this?
Replied on March 12, 2013
It may just be a dry dust seal,is the noise constant or only when the pedal is pressed?
