1999 Chevy Tahoe lt
Engine size = 350
ABS and Check engine light
codes = P0502
tech = mw
question = I was driving and the ABS light came on. When I applied the
brakes the started grinding. Afterwards the transmission started
slipping and wouldn't shift higher than third at 3000 rpm's. Does the speed
sensor control the shift rate of the tranny and if so how do I replace
it.
MW:
Hello and welcome. Sounds like you have multiple problems here. Code p0502 is a
vehicle speed sensor circuit low. It is on the tail end of the trans.(or transfer case if 4wd)
That does play a part in the shifting patterns and abs system. First thing you need to do
is get the ABS computer scanned for codes as well, that is the key to start diagnosis.
Grinding in the brakes may be just normal brake problem, but if abs activation is what
you feel, then a problem in one of the front speed sensors is most likely cause. Need to
get to a repair shop and have all these different systems checked out.
Engine size = 350
ABS and Check engine light
codes = P0502
tech = mw
question = I was driving and the ABS light came on. When I applied the
brakes the started grinding. Afterwards the transmission started
slipping and wouldn't shift higher than third at 3000 rpm's. Does the speed
sensor control the shift rate of the tranny and if so how do I replace
it.
MW:
Hello and welcome. Sounds like you have multiple problems here. Code p0502 is a
vehicle speed sensor circuit low. It is on the tail end of the trans.(or transfer case if 4wd)
That does play a part in the shifting patterns and abs system. First thing you need to do
is get the ABS computer scanned for codes as well, that is the key to start diagnosis.
Grinding in the brakes may be just normal brake problem, but if abs activation is what
you feel, then a problem in one of the front speed sensors is most likely cause. Need to
get to a repair shop and have all these different systems checked out.
