front left speed sensor

hi guys

i used to get 2 faults both was front left speed sensor fault

that would cause light come on and abs not to work of course
if i reset the code with diagnose machine unti8ll the light comes on when i am pullingout front left tyre would feel like skidding on ice once i reach the speed 5 6 mph it will dissapear sometimes it will take one day for light tom come ona some times 2 minutes

do you know if my abs pump is faulty my mechanic says we can try to bleed it as far as i know u can not bleed them without proper belleding tool is this right

is abs rebuild necessary ???

sounds like the speed sensor

i changed the sensor and still get the same fault my mechanic says it might be abs pump

did you fit genuine sensor?
ive had sensors from euro car parts and gsf and they have played up even though they check out when doing diag ie the measuring blocks are ok but after a while they go wrong and you fit genuine sensor and it cures fault