Compression Ignition Addict
Join Date: Feb 2008
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As Hydro said I would first replace the hose. But then I would open up the brake and see how the pads and caliper boots look.
Again, if those are aftermarket pads, especially if they do not have many miles on them, are going to be in more of a green state.
On the assembly line side of the brake business, we had to go through a deep bake procedure after the initial heat and pressure forming. On the OE side, vehicles come off the assembly line, go on the roller Dyno for a performance check, then roll out to the shipping lot. The rest of the transport to dealer lot is done with minimal miles. However, any vehicle at the lot needs to be able to be taken for a test drive, and the impression of brake feel can make or break that sale. It's not a situation of saying to the customer it is going through a break-in process or a dealer employee taking the vehicle out for 50 miles of traffic.
The aftermarket does not have to do that, the service personal often tell and the owner expects some break-in. The DIY’er is given a break-in procedure of several stops. In both situations, it allows for less expense by not doing a 12 to 18-hour bake cycle. PFC historically has gone farther, laser scorching the rubbing surfaces. No aftermarket formulation my company sold in the aftermarket, including the most expensive ones, ever went through as extensive of a bake as the products we manufactured for the assembly line. And even our aftermarket pads never were as short as other companies in the aftermarket.
The smoke and odor is the degradation of the organics in the friction material formula, and the amount of that varies in different formulation. It also is the off-gassing of ammonia and formaldehyde during the curing process. It’s one way to tell your new aftermarket brakes never had a long bake cycle when you first put them on.
Anyway, the long dissertation is you have newer pads of an unknown state of conditioning. I’d look at them first unless you are that nervous that they just need to be replaced. And that's fine too.
Edit - if the one side brake hose is bad, I'd at least replace the other side. Internal hose tears are typical because the hose was under stress from twisting or hanging the caliper. If a shop not long ago did the work, it's possible they did the same to the other hoses too.
Former Vehicle Test Manager, Friction Products.
03 F350SC 4x4 6.0 Auto 5/30/03
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Last edited by TooManyToys; 08-24-2019 at 03:06 PM.