2001 Ford F150 Idle rough, power Brakes don't work

2001 FORD F-150
136,000 MILES • V8 • 4WD • AUTOMATIC
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RAPITUP
  • MEMBER
  • 1 POST
This truck started Idleing bad, plus the power brakes don't work. I check the pcv value replace the vacuum value on thr brake boster, check for vacuum leak(cant find any). I pull off the vacuum line from the boster and the motor runs better but stills misses there is lots of vacuum going to the boster when i put my finger over the line the motor wont ot stall.whit everthing hook-up the motor aks like it's not getting enough intake-air.????
Oct 15, 2008 at 8:47 AM
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DOCFIXIT
  • ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
Think diaphram in booster is bad or air valve. You may also have a rich fuel problem too.
Oct 15, 2008 at 5:26 PM
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