So today I'm diving to work. Couple of miles down the road I pressed on the break to stop for a light and my ABS kicked in. At almost every stop I came up to and applied breaks my ABS was kicking. Half way there my ABS light and Break light turned on. Got to work Checked my fluid Level and it was at the add line. Before I left work I toped off my break fluid and went on my way. Same Problem but I did not get an ABS or Break light. I have know for a while that one of my abs sensors are going bad. I would get a ABS and Break light come on every once in a while on the freeway. I recently did some front end work on the truck. I know my pads are good, drums and shoes are shot. I have not been able to locate a leak. Im going to jack up the truck tonight and check my wheel cylinders for leaks. I replaced my rear axle sensor 6 months ago so I know thats not it. Any ideas why this is happening? Air in the system? Bas ABS unit?

Thanks

 

Im fixing the same problem now but mine is a rusted out brake line with a hole in it =/. Both my lights are on like yours also

 

Air in the system.. maybe mine came on when i was bleeding the brakes but went off after the air was out and the fliud was full



so you are losing fluid but don't know were its going?..... i think a bad master cylinder can suck fliud, im not a 100% but i think they can

 

I guess i am gonna bleed the crap out of the breaks tomorrow. Hope fully it will work. Any other ideas are appreciated. Thanks guys

 

a while ago my abs and brake lights came on, but at the same time my speedo stopped working unless i was going at least 30. the problem with mine was the speedo sensor in the rear differential. Replaced it and the speedo was workin again and all the lights went off...might check that.

 

I replaced its a few months ago

 

you mite wanna check ur front wheel sensors...i had the same problem i had to remove my wheel bearing and abs sensor and put a whole new set up in...$415 later it was fixed

 

Try pulling the connector on the sensor on the rear end and cleaning it.

 

Honestly I believe one of my wheel bearing are going bad. Im just waitin for money for the bearing. I can get it for $200 bucks a pep boys.

 

let us know what it was, when you find out.