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OT: Wheel Bearings and ABS Faults Posted by MI-Roger [Email] ![]() ![]() |
So this was not on a Saab, and it might be common knowledge to many others, but I learned something yesterday that I hadn't heard before. A failing wheel bearing can cause intermittent faults within the ABS system. A failing wheel bearing can result in steel ball to steel race impact within the bearing, impacts which produce a magnetic field. This is the same phenomena employed in MRI machines. These small magnetic fields can interfere with the ABS wheel sensor.
So a mysterious intermittent ABS fault may be indicative of a failing wheel bearing even before the wear-out becomes audible to the driver or occupant.
Car was the youngest son's 2002 GranAm.
_______________________________________ Saabs owned: 2008 9-5 Aero Sedan, sold at 227K miles 2006 9-3SC 2.0T - Wife's daily driver 2000 Viggen Convertible - Sold May, 2022 1964 Quantum IV Formula Car - Retirement project 2000 9-5lpt Sedan, sold at 318K miles
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