brake grabs in front wheel

2000 FORD E-SERIES VAN
189 MILES
Avatar
BANYOU
  • MEMBER
  • 2 POSTS
this is a 4.2L engine, when driving, braking is very hard to control because front brake grabs and skids, even when is applied slowly and gradually, seem like is mostly on left front wheel, but no skid in the rear. i replaced a brand new master cylinder brought from ford dealer, same problem again but a little better than before, i bleed it really good. so if any experienced ford mechanic know what cause this brake problem, please give me some advice. Oh, no ABS light were on, i was suspecting the brake booster, or is it possible the calipers, but the caliper wont skid that bad. is there a proportioning valve on this vehicle? please help, thank you!
Oct 5, 2011 at 1:31 AM
Advertisement
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Caliper piston could be sticking
Oct 5, 2011 at 1:45 AM
Avatar
CJ MEDEVAC
  • ASE Certified Mechanic
  • 11,004 POSTS
  • ASE Certified Mechanic
SOMETIMES THE BRAKE HOSE WILL "CHECK VALVE" WHEN IT HAS INTERNAL PROBLEMS (OLD,SHOT)

IF YOU CAN MAKE IT STICK, WHILE SITTING STILL, OPENING THE BLEEDER ON THAT ONE, WILL RELEASE THE PISTON....DOING THIS WILL ELIMINATE THE CALIPER AS THE PROBLEM. AND MAY VERIFY IT'S THE HOSE...OR FURTHER UP THE LINE

THE MEDIC
Oct 5, 2011 at 3:18 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.