Well, apparently it falls under TSB 11-10-24. Don't know if the pump is defect yet as I haven't seen the invoice, but they are replacing my brake pads. Kinda a shame this happened now and not in another year, cause there's probably at least 60% pad life left. Oh well.
HARD BRAKE PEDAL FEEL DURING NORMAL BRAKING
Some 2011 F-150 vehicles built on or before 8/23/2011 may exhibit a hard brake pedal feel during normal braking with no reduction in braking effectiveness and no brake warning indicators or diagnostic trouble codes (DTCs) present.
Follow the service procedure to correct the condition.
1. Perform brake booster component test procedure. Refer to Workshop Manual (WSM), Section 206-00. Does brake booster operate correctly?
a. Yes - proceed to Step 2.
b. No - do not continue with this article. Perform normal diagnostics. Refer to WSM, Section 206-00.
2. Is the vehicle equipped with a 3.5L gasoline turbocharged direct injection (GTDI) engine?
a. Yes - proceed to Step 3.
b. No - proceed to Step 6.
3. Check brake vacuum pump operation.
a. Ignition switch on and engine off.
b. Exhaust all vacuum by applying brake pedal five (5) times.
c. Using IDS, enter diagnostic mode:
DataLogger - ABS Module.
d. Toggle vacuum pump (VAC_PMP) active command to turn the pump on for 30 seconds.
4. Does the brake vacuum pump run?
a. Yes - proceed to Step 5.
b. No - do not continue with this article. Refer to WSM, Section 206-09, pinpoint test T.
5. Does the brake booster provide brake assist?
a. Yes - proceed to Step 6.
b. No - perform normal diagnostics. Refer to WSM, Section 206-07.
The brake booster uses the engine for its primary vacuum supply. The brake vacuum pump helps to maintain vacuum supply when the engine is under boost conditions.
6. Reprogram the ABS module to the latest calibration using IDS release 75.04 and higher. This new calibration is not included in the VCM 2011.9 DVD. Calibration files may also be obtained at the website.
7. Replace the front brake pads. Refer to WSM, Section 206-03. It is important to follow the instruction sheet included in the brake pad kit for proper pad orientation.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT : Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
OPERATION DESCRIPTION TIME
111024A 2011 F150: Perform 0.9 Hr.
Diagnosis, Reprogram The
ABS Module And Replace
The Front Brake Pads
BASIC PART NO. CODE