GM Service Manual Online
For 1990-2009 cars only

WHINE NOISE AT APPROX. 32 MPH (CHECK FOR TRANS COOLER

THIS IS A MONTHLY SERVICE NEWSLETTER ARTICLE THIS INFORMATION IS NOT INTENDED TO BE A PUBLISHED BULLETIN

TRANSMISSION WHINE AT ABOUT 32 MPH IN A 1997 C CAR, CHECK FOR THE COOLER LINES HITTING THE BODY. ESPECIALLY LOOK IN THE AREA OF THE LOWER RADIATOR SUPPORT. THIS INSPECTION MUST BE PERFORMED WITH THE CAR ON A LIFT. A NUMBER OF CARS THAT WERE THOUGHT TO BE FINAL DRIVE GEAR WHINE WERE FIXED WHEN THE NOISE WAS TRACED TO A COOLER LINE HITTING THE BODY.

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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.

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