QuestionFirst, for several years ABS will chatter at low speed.
Now, at times brake pedal will go to floor, and also no power steering. No leaks, brake and pump reservoir full. I know diesels have no vacuum system, is my pump failing?
AnswerHI PAUL,THE CHATTER AT LOW SPEEDS IS A FAULTY WHEEL SPEED SENSOR,IT THINKS YOU ARE IN A SKID MODE. BUT YOU ARE NOT. ONE OR 2 WHEEL SENSORS ARE BAD. VERY COMMON. WILL NEED TO SCAN TO FIND WHICH ONE IS BAD...
THIS IS NOT CAUSING THIS PROBLEM,YOU COULD REMOVE THE ABS RELAY IN FUSE BOX TO MAKE THIS STOP IF YOU WANT OR GET IT FIXED.BY REMOVING THIS RELAY THE ABS LIGHT WILL BE ON THE DASH. THIS HAS HYDRO BOOST,SO YES IF WHAT YOU SAY IS TRUE,NO LEAKS AND ALL IS FULL, THE PUMP COULD BE FAILING..TRY TO PINCH THE HIGH SIDE LINE TO THE PUMP WITH A VISE GRIPS AND SEE IF THE PUMP START WHINNING,IF SO THE PUMP WOULD BE WORKING, BUT THEY CAN STOP AND START WORKING I HAVE SEEN THIS. IF YOU NEED MORE INFO GET BACK TO ME. WHEN YOU LEAVE THIS SITE COULD YOU PLEASE RATE THIS ANSWER. THANK YOU,, TOM
