Mike Collum wrote:
> <snip>
>
>>What causes dragging brakes? These drag enough to create an odor, so it's
>>worrisome.
>
> <snip>
>
> The two things that come to mind are, 1.  pistons in the calipers are
> sticking, and 2.  the fluid return hole in the master cylinder is blocked
> thereby holding hydraulic pressure in the line.
>
> It's more likely your calipers need replacing or rebuilding.

I've also heard of brake hoses collapsing internally and causing this.
They create a sort of check-valve effect -- the high pressure when you
step on the pedal can easily push through, but then the fluid has
difficulty returning to the master cylinder.

--

David Brodbeck, N8SRE
'82 VW Diesel Westfalia
'86 Volvo 240DL wagon