Affected Component: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

Date Published

JAN 30, 2001

NHTSA TSB #

620147

TSB Document

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Volvo for this TSB. Call your local Volvo dealer's service department & ask for a copy of TSB# 5202.

Summary

THIS BULLETIN STATES THAT CERTAIN MODELS NOW HAVE DIFFERENT BRAKE PEDAL FEEL DUE TO THE BRAKE BOOSTER CHARACTERISTICS. WITH NEWER CARS, THE BRAKE BOOSTER IS MORE SENSITIVE TO CHANGES IN THE VACUUM FROM THE ENGINE, WHICH MAY RESULT IN SLIGHT VARIATIONS IN BOOSTER REINFORCEMENT / PEDAL TRAVEL. A CUSTOMER IS MOST LIKELY TO NOTICE THIS PEDAL HEIGHT VARIATION WHEN APPLYING THE BRAKE PEDAL FOR AN EXTENDED PERIOD, FOR EXAMPLE, WHILE SITTING AT A STOP LIGHT. THIS VARIATION IS NORMAL AND DOES NOT AFFECT THE FUNCTION OR EFFICIENCY OF THE BRAKES. *TT