was doing fine tonight, went to walmart and did some shopping. got in my truck, and headed out theparking lot and the peddle was hard as a brick. it was hard as heck, it wouldnt stop the truck on its own. had to put it in neutral and use e-brake and stand on pedal. got home, killed it and cranked itand now the little engine lite is on, and the brakes still dont work. its a 2005 f-150 4x4 with 5.4. what could possiably be the problem all of the sudden. master clyinder? booster? the vacumn lines are hooked up.

 

Since its starting to throw a CEL, I'd get that pulled and give us feedback on that.

Did your abs light come on as well?

Couldn't imagine a booster or MC going out... but I suppose the possibility exists.

What kind of milage is on your truck?

 

miles is 92000. went and bought a scanner and only had 2 codes for bank 1 & 2 running lean. thats it. double checkvacumn lines all hooked up. i took MC off and brake pedal was easy. probably dont mean a thing. im at wits end.

 

well i did research on the net and came up on a website on ford f150 lawsuits, and low and behold many people had wrecked do to the problem i had. the main vacumn line on the back of the intake had came off and it has killed numerous people. so if your brake pedal gets rock hard keep in mind of the hard as HEEEELLLLooooo vacumn line to get to on the back of the driver side intake.

 

I was going to say vacuum line, but you beat me to it Bart.

 

<TABLE style="BORDER-BOTTOM: black 1px solid; BORDER-LEFT: black 1px solid; BORDER-TOP: black 1px solid; BORDER-RIGHT: black 1px solid" itxtvisited="1"><TBODY itxtvisited="1"><TR itxtvisited="1"><TD itxtvisited="1">There was a recall for this item last year. You should have received it. The dealer will fix the problem and install a clamp onto the hose to prevbent it from comming off.

See below from the recall lookup

Recall data for: 2005 FORD F-150
</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">NHTSA Campaign Number: 08V208000</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Manufacturer Campaign Number: 08S05</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Make: FORD</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Model: F-150</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Year: 2005</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Component:
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Manufacturers Involved: FORD MOTOR COMPANY</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Begin Date Of Manufacturing: 20040419</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">End Date Of Manufacturing: 20060531</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Recall Type: V</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Potential Number Of Units Affected: 605684</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Date Owner Notified By Manufacturer: 20080627</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Recall Initiator: ODI</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Manufacturer Responsible For Recall: FORD MOTOR COMPANY</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Date Report Received By ODI: 20080507</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Date Added To File: 20080507</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Regulation Part Number: </TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Federal Motor Vehicle Safety Standard Number: </TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Defect Summary:
FORD IS RECALLING 605,684 MY 2005-2006 F-150 AND LINCOLN MARK LT VEHICLES EQUIPPED WITH 5.4L 3-VALVE ENGINES. THE BRAKE BOOSTER VACUUM SUPPLY HOSE ATTACHED TO THE INTAKE MANIFOLD FITTING MAY SWELL OVER TIME AND LOSE RETENTION FORCE. THIS CONDITION COULD ALLOW THE HOSE TO BECOME DETACHED FROM THE FITTING DURING AN INTAKE MANIFOLD BACKFIRE. SHOULD THE HOSE DETACH FROM THE INTAKE MANIFOLD, SEVERAL BRAKE APPLICATIONS WITH POWER ASSIST WILL BE AVAILABLE BEFORE THE VACUUM RESERVE IS DEPLETED.</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Consequence Summary:
ONCE THE BRAKE BOOSTER VACUUM RESERVE IS DEPLETED, THE DRIVER WILL HAVE FOUNDATION BRAKE FUNCTION, BUT WITH INCREASED BRAKE PEDAL EFFORT. REDUCED VEHICLE BRAKING COULD LEAD TO A CRASH.</TD></TR><TR itxtvisited="1"><TD itxtvisited="1">Corrective Action:
DEALERS WILL REPLACE A RUBBER HOSE ON THE BRAKE BOOSTER VACUUM SUPPLY TUBE ASSEMBLY. THE RECALL BEGAN ON JUNE 27, 2008. OWNERS MAY CONTACT FORD AT 1-800-392-3673.</TD></TR></TBODY></TABLE>