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The tech tips from mighty auto part : Imagine performing an inspection on a customer’s vehicle and identifying a needed service. The customer is receptive to the recommendation and you perform the service. SOLVING BRAKE NOISE INTRODUCES PEDAL PULSATION The disc pads were worn down to the wear indicators and a loud squealing sound was being emitted from the braking system. The technician performed a brake inspection and determined the need for a complete brake system overhaul. Cause and Solution: While performing the brake service, the technician introduced the pulsating sensation when the machined the rotors. The rotors had been properly machined and were running true, but he had not protected or cleaned the wheel speed sensors during and after the machining process. FALSE ABS CODE AND ILLUMINATED LAMP Cause: While the second technician questioned his friend, who was servicing the vehicle, he spun a tire and wheel assembly with his hand. Satisfying the Lamp: A Nissan tech came to the rescue by recommending a short test drive. On the Infiniti, the ABS lamp may continue to be illuminated after the diagnostic memory is erased with a scan tool. ELECTRICAL GLITCH PROMPTS SWITCH CHANGE The customer purchases a used Ford Ranger and you are called upon to diagnose a windshield wiper related problem. The wipers operate with the wiper switch in the off position or they can be turned on with the ignition switch in the off position. A botched installation can back-feed and power-up other components or accessories such as the windshield wipers, creating a nightmare for the new owner and the technician trying to diagnose the problem.
Tags : windshield wipers, speed sensors, windshield wiper, wheel assembly, wheel speed, brake noise, cause and solution, disc pads, machining process, system overhaul, wiper switch, ford ranger, scan tool, customer purchases, pulsation
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