mjsparky363

Good morning all. Searched and read but still need input for a left front caliper that won't release. There is a new caliper, pads, rotor and flex hose(3rd set up in about 15 months). What happens is if I go short distances it is fine. When I travel in stop and go traffic the left front won't (or is very slow to) release causing a very hot caliper/rim etc. I have lubed everything up, then replaced all the hardware to no avail. Could it be a problem in the ABS module for just the 1 brake? (no ABS light or anything) . The other thought I had is a hub problem that is generating a lot of heat causing the fluid to expand in the caliper but there is no wobble or noise so I don't know how to check that. Anyway, I would appreciate any input or feedback. Thanks !!!

Tommy J

Just throwing it out there but just because the caliper is new doesn't mean its not malfunctioning. Does it have a warranty and can you replace it? Sorry, that's all I got

PerryB

Maybe you have a bad wheel bearing creating the drag and the rotor/brake assy. is getting hot as a result.

Dirttracker18

This was my thought as well.

techrep

iTrader: (1)

2WD or 4WD ?

Kevinpmac

I managed Brake and Front end Repair shops for many years. Your comment re three brake hose setups caught my attention as brake hose is the #1 culprit in this scenario.
Did you by chance allow the caliper to hang by the current hose? If so, replace it again and be sure to support the caliper so it does not tug on the hose. Hoses are multi ply. The inner liner often ruptures due to a hanging caliper and acts as a check valve holding slight pressure and overheating the pads/caliper it is associated with.

Otherwise, ensure the caliper is functioning properly, i.e. easy to retract with hose removed.

edit: you can also disconnect the hose from opposite end from caliper and check to make sure you can retract the pads easily by hand. This will help in eliminating potential culprit.

techrep

iTrader: (1)

Yep... I always use zip ties to hold my calipers up...

Martian

I sit mine on top of an upside down 5gal bucket

techrep

iTrader: (1)

That works too...

dyeguy1212

iTrader: (1)

I had the same thing happen to me, and it was the brake hose. I'd double check.


I'd also inspect that caliper (installed, wheel off). Start the truck and have someone pump the brakes. Ensure the piston and pads are retracting a sufficient amount under that controlled environment.