hey guys....got break issues.

1st. when i hit the brakes after the truck has been sitting for a few hours they screatch like a big truck. I "think" its my back drums...but i cant tell for sure from in the cab. It usually only does it when im stopping slowly..if i hammer on the brakes it doesnt do it.
It is also ALOT worse if its wet or damp out. Then after i drive/stop a few times it mostly goes away.

also the last 2 weeks if the truck sits during the day while its raining hard when i finally do use the breaks my rear breaks will lock up the minute i touch them....again..it only does it the first time or two i try them.

the Drums are about 8 months old....only new parts.
oh and front are Disk.

any ideas what my problem might be? i think the screatching a the locking are seperate issues...but dunno for sure.
Thanks for any input

 

i have the same thing in the rain. i press the brakes 1% and all 4 lock up and i screech to a halt. no exaggeration. my dads s10 was the same way. but after that initial lock up they work fine. i just have to remember when it rains that they are sensitive.

 

Fortunately for me its only the rear brakes and only when its really raining quite a bit.....so i just get the back end bouncing up and down....would hate it if all 4 locked. How long has yours been like that?

 

it only happens when i brake the first time, then its fine.

 

mine are the same way. If i'm in the wet, my braking distance is pretty much negative. Except they stay that way with every hit, it doesn't wear off. One heck of a way to learn how to trail brake.

 

I'm guessing on this issue - I had this once on a Ford I used to own, but not on my dodge.

I'm thinking the rain/humidity causes the brake shoes to swell - then when you hit them they are too tight & lock up. Drum shoes turn into the drum so they kind of pull tighter with the rotation - not sure how to explain that - but a little water in there & they stick. Once the first hard pull on the brakes there is enough heat in there to dry them out.

Just guessing - but if this is the issue - you can try to adjust the brakes out (looser) a bit & see if that helps.

 

On mine, it's the front discs that try to lock up when wet.

 

I had a screeching noise from my rear drums couldnt figure out why new shoes and drum was still go then when I had my wheels off I tightened up my adjuster between the two shoes and since then I havent heard it.

 

Mine done locked up a couple weeks ago in the rain.I thought that my pads might be gone so i pulled off the front wheels to look and the pads looked new.I still haven't figured it out.

 

I had the same thing happen to me had to limp home and since it was raining out my wheel was actually steaming so I replaced my rubber brake line and I havent had a problem since then.