Saab brake booster


i have a 1999 saab 9-5 i think i have narrow"d down to the brake booster,vac lines are clear and no fluid leaks nor around the m/c , is heir anything else i can check before i tackle the booster,thanks


You dont state what the concern is. I assume poor brake performance? Hard pedal,long stopping distance,extra effort from leg to pedal? Give us more info we want to help. What do you mean “vac lines are clear”?


sorry yes hard pedal,the vac lines from the booster to the back of the manifold are all in good shape and clear also the check valve is working correctly in the line to the manifold.