Factory Fixes: Acura, Chrysler and Ford - Tire Business
-- ArtID: 150909995 ArtByline: Jim DePalma ArtCategory: SERVICEZONE ArtCategoryName: Service Zone ArtTitle: Factory Fixes: Acura, Chrysler and Ford ArtMainPhoto: /apps/pbcsi. dll/storyimage/TB/20150901/SERVICEZONE/150909995/AR/0/Factory-Fixes. Some 2002-06 RSX cars and 2007-12 RDX SUVs may turn on the Check Engine light and store trouble code P2646 or P2647 in the PCM. Acura reports that the problem is usually intermittent and may be tough to duplicate once the trouble code is cleared with a scan tool. A defective rocker arm oil pressure switch is the most likely cause of the malady. Installing a new-design pressure switch and O-ring (part No. 37250-PNE-G01 and part No. 91319-PAA-A01, respectively) as shown in the illustration above should eliminate the trouble immediately. Chrysler reports that the oil change monitor on some 2008 Aspen SUVs may come on prematurely, sometimes right after the oil was changed and the monitor was reset. According to the carmaker, the condition is usually intermittent and frequently occurs right after the battery was disconnected for other service. According to Ford, the noise typically affects trucks built before July 20, 2007, and is most likely due to design defects in the suction-side accumulator. Source: www.tirebusiness.com
