Power Steering Pump Reservoir Change - keywords cap fluid hoses leak plastic pressure return steel steer

PIC3691A reated to include updated part numbers and include 2004 model years. Plastic pump reservoir is no longer available. Please discard PIC3691

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

There was a rolling change to the power steering reservoir on the 2005 Cadillac XLRs. Vehicles built before VIN 55602327 had the 1st design power steering pump reservoir which was plastic and vehicles built after that VIN break were manufactured with a 2nd design reservoir which is steel. The power steering hoses that attach to the reservoir are also different between the 1st and 2nd design power steering pump reservoirs.

When servicing a vehicle equipped with the 1st design plastic power steering reservoir, it will be required to replace it with the 2nd design steel power steering reservoir. The plastic power steering reservoir is no longer available. When converting to the steel reservoir from the plastic, it will also be required to replace the power steering hoses. The part numbers and parts descriptions are listed below. These parts can be ordered through GMSPO.

This will only be required on 2004 and 2005 Model years built prior to vin 55602327 equipped with a plastic power steering reservoir.

15285644 steel reservoir

15240032 inlet hose (runs from pump inlet to reservoir large diameter hose connection)

19122265 cooler (hose runs from small diameter reservoir connection to steering gear)

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.