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2007 GMC Sierra 2500 LBZ, efi dsp5, 4” straight pipe, edge cts3, FASS 165 with filter delete
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Occasionally my abs lights comes on so today I pulled codes and got C0035 and C0040 which is for both front wheel speed sensors. I also have an issue where when I hit 15kmh while braking the abs kicks on a pulses and the truck slams to a stop. Both front wheel speed sensors are reading. Anyone have ideas?
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Sloppy (worn out) front wheel bearings, or rust lifting sensors out of range. Low speed resolution is lost. They should read, when working correctly, at 3mph and up.
 
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