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GW-2 < SYMPTOM DIAGNOSIS > SQUEAK AND RATTLE TROUBLE DIAGNOSES SYMPTOM DIAGNOSIS SQUEAK AND RATTLE TROUBLE DIAGNOSES Work Flow INFOID:0000000003943092 CUSTOMER INTERVIEW Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diag- . This information is necessary to duplicate the conditions that exist when the noise occurs. all the facts and conditions that exist when the noise occurs (or does not occur). • If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer is concerned about. This can be accomplished by a test drive with the customer. • After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics are provided so the customer, service adviser and technician are all speaking the same language when • Squeak – (Like tennis shoes on a clean floor) Squeak characteristics include the light contact/fast movement/brought on by road conditions/hard surfaces • Creak – (Like walking on an old wooden floor) Creak characteristics include firm contact/slow movement/twisting with a rotational movement/pitch depen- • Rattle – (Like shaking a baby rattle) Rattle characteristics include the fast repeated contact/vibration or similar movement/loose parts/missing • Knock – (Like a knock on a door) Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action. • Tick – (Like a clock second hand) Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver • Thump – (Heavy, muffled knock noise) Thump characteristics include softer knock/dead sound often brought on by activity. • Buzz – (Like a bumble bee) Buzz characteristics include high frequency rattle/firm contact. • Often the degree of acceptable noise level will vary depending upon the person. A noise that a technician may judge as acceptable may be very irritating to the customer. • Weather conditions, especially humidity and temperature, may have a great effect on noise level. DUPLICATE THE NOISE AND TEST DRIVE SBT842 |