Please let me know if you had this problem . When I step my breaks just a little the truck breaks locks up and the truck stops hard what can be the problem? I've changed the front rotors and bleed the whole system and when I break also the rears lockup first? Please help. Thank you
Lowered in the back .lspv valve thinks its carrying a load that valve increases break pressure to the rear when a heavy load is applied lowering the truck raises the arm on the valve thus increasing break pressure u can bypass it or adjust the arm as much as possible to get it back how it was before lowered I adjusted mine then removed then put back on been cussing it for a while now
Check jaybee its an easy fix.Good idea to keep them rear brakes with all that power you got in there che'lu.
make sure the line/hose is not restricted n ur brakes is not dragging. its possible the brake fluid is not returning so there is some "positive" lightly pressing on the brakes. easy check is to spin tires off the ground n see if they are binding. -but i doubt this is the prob, most likely its the lvpv, my truck does the same thing.
If you delete the LSPV you get full pressure to the rear brakes. So how is that going to solve the problem? Have you taken the rear drums off? even the wheels? a VERY common cause for grabby rear brakes is if an axle seal or brake cylinder leaks. Either fluid causes problems and it doesn't have to be dripping out to be a problem.
