Parking Brake Problem

[Popeye2347]

Two things first, I have not found any like problems in a search, and two I cannot imagine why a 'simple' system like this is causing so much problems???

Anywhoo....My parking brake seems to un-adjust itself,...no, the adjusters work as advertised, back up and they tighten the shoes as they should, and I get a good pedal resistance. All is good for a number of miles, then when I go to apply the parking brake it might work for a time or two, or it might go to the floor with little or no resistance!!???

I can manually adjust them or just back up a number of times and get a good parking and service pedal response, like I stated, for a while, could be a few miles, maybe a 40 or 50. Then it is out of adjustment again.

Background-Bought the 1994 F250 4x4 with a leaking axle seal, had it replaced along with the shoes and a parking brake adjuster cable that was broken. The first time or two this happened I called the tech and he suggested the new shoes needed time to adapt to the curvature of the brake drum, and that it would all be good after a period of time. It isn't-.....

I will probably take it back to him, but I don't think he knows what the solution/fix is either. I have examined the repair work and all seems right, but I know Ford did not intend for this to operate like this.

One last item, it is not loose cables, as the pedal will adjust up as advertised, nor is it a TSB item as this is a 1994 model.

Anyone have any ideas?????What am I missing??????

 

[LCAM-01XA]

I thought the TSB is for the '92-'96 models? 'm talking about the pedal assembly TSB, where they lock the ratchet pawl so it don't skip...

 

[Popeye2347]

My bad, it does include those years....must have been 'asleep at the keyboard!'

Upon close examination I found two phone numbers at Ford for the Parking Brake, Power Lumbar Control wiring and Speed Control Deactivation Switch recall. My harness is not fused and a call to my local dealer and [somewhere at} Ford gave no results-they could not find any mention of them. Now I have the recall numbers and maybe I can get some cooperation from a dealer that is in denial...---no I am not going to count my chickens just yet

FWIW they are 1-866-436-7332 and 1-866-392-3673, listed under the Speed control recall.

Speed Control Deactivation switch overheat #05V388000, 06V286000 dated Aug 2, 2006.

Power Lumbar Harness recall #96V064000 dated Apr 26, 1996

Parking Brake # 96V169001 dated Nov 19, 1994.
There one or two other parking brake recalls that are not germane to my problem.

 

[Popeye2347]

Good thing I didn't count them chickens. The 'Helpful Lady' at the other end done in essance what the dealer done, "The computer says no outstanding issues.' Thus ---go away! And what irks me is that I can SEE the lack of a fuse in the 10" CC wire, etc.

Almost enough to make me Jump Ship-I certainly will not be buying another FoMoCo product!!