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/PT 20-0023.pdf
ABA5089 PT 20 0023 MIS DIAGNOSED POWER STEERING PUMP NOISE 1992 93 CHEVROLET AND GMC TRUCK C K S T MODELS 1992 93 OLDSMOBILE BRAVADA WITH 4 3L 5 0L 5 7L ENGINES CARDONE part numbers 20 661 7803 7824 7828 7832 7877 7901 7918 7924 7931 7933 7938 7943 7950 7985 7987 7999 8301 8703 8704 8705 8713 8712 8724 8749 8756 A whine noise emanating at the front of the vehicle that appears to be coming from the power steering pump The noise may actually be the result of a failed bearing in the alternator The following procedure can help determine the source of the noise by isolating the power steering pump from the alternator GM reference bulletin 463201 1 Isolate the power steering pump from the alternator by installing an accessory drive belt off of a 3 4L equipped 1993 or 1994 Camaro or Firebird Install the diagnosis belt as shown in FIGURE 1 2 Run the engine and listen for the noise Do not drive the vehicle with this belt attached If the noise is gone the power steering system is most likely at fault If the noise remains proceed to diagnose the remaining elements of the accessory drive including the generator 3 After the noise is successfully corrected remove the accessory drive belt used for diagnosis 4 Install the original accessory drive belt as shown in FIGURE 2 Application Problem Cause Solution Made by O E Remanufactured Best by Power Steering Pumps Control Valves Power Cylinders Power Steering Pumps Filters Rack Pinion Units Steering Gears Cam Rings In order to prevent low flow noise or no pressure CARDONE resurfaces the cam ring to give it the original consistent surface By running your finger around the inside of the cam ring you will be able to feel the smooth inner surface Every unit is tested for proper flow and pressure to make sure it meets all OEM specifications This process ensures a high quality unit that won t come back Limited lifetime warranty Contact your local auto parts store or visit our web site www cardone com for more information on this and other CARDONE products today Resurfaced
