GM Service Manual Online
For 1990-2009 cars only

P/S COOLER LINE LEAK NEW P/S PIPE

SOME 1983-84 "F" SERIES EQUIPPED WITH THE 5.0L V8 ENGINE (L69) MAY EXHIBIT A POWER STEERING OIL COOLER LINE LEAK WHERE THE SHORT RUBBER HOSE IS CLAMPED TO THE PIPE AT THE STEERING GEAR END. THE LEAK NORMALLY OCCURS WHEN STARTING A COLD ENGINE AT TEMPERATURES BELOW 0 DEGREE F. VEHICLES THAT EXPERIENCE A LEAK AT THE SHORT HOSE AREA (SEE FIGURE 1) MAY BE REPAIRED BY INSTALLING A NEW PIPE ASSEMBLY, P/N 14089439. 1. DISCONNECT NEGATIVE BATTERY CABLE. 2. DISCONNECT LEFT HAND AIR CLEANER INLET DUCT FROM RADIATOR SUPPORT. 3. SLIDE STEERING COUPLING SHIELD UP STEERING SHAFT FOR ACCESS TO COOLER PIPE FITTING. 4. REMOVE COOLER PIPE FITTING FROM STEERING GEAR. 5. REMOVE P/S PUMP HOSE FROM THE OUTLET END OF THE COOLER PIPE. 6. RAISE VEHICLE ON HOIST. 7. REMOVE TWO (2) SCREWS THAT RETAIN COOLER PIPE TO LOWER RADIATOR SUPPORT. THEN REMOVE COOLER PIPE. 8. LOWER VEHICLE. 9. INSTALL NEW 'O' RING SEAL, P/N 7829923, ON FITTING END OF NEW PIPE (SEE FIGURE 2). 10. PLACE COOLER PIPE IN POSITION AND THREAD PIPE FITTING INTO GEAR. DO NOT TIGHTEN YET. 11. RAISE VEHICLE ON HOIST. 12. TRANSFER THE TWO (2) RADIATOR SUPPORT CLIPS FROM OLD PIPE. INSTALL TWO (2) RETAINING SCREWS AND TORQUE TO 9 N.M (80 LBS. IN.) 13. LOWER VEHICLE. 14. TORQUE FITTING AT GEAR TO 27 N.M (20 LBS. FT.). 15. TRANSFER COOLER PIPE CLIP FROM THE OLD PIPE. POSITION CLIP ON NEW PIPE AS SHOWN IN ILLUSTRATION AND TORQUE TO 9 N.M (80 LBS. IN.) 16. INSTALL RETURN HOSE FROM P/S PUMP TO COOLER PIPE WITH NEW CLAMP , P/N 2494772, AND TORQUE TO 2.3 N.M (22 LBS. IN.) 17. SLIDE STEERING COUPLING SHIELD BACK TO ORIGINAL POSITION. 18. REINSTALL AIR CLEANER DUCT TO RADIATOR SUPPORT. 19. RECONNECT NEGATIVE BATTERY CABLE. 20. REFILL P/S PUMP, BLEED SYSTEM, AND CHECK FOR LEAKS.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.