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| F Series Forum covers questions and discussions regarding Ford F-150, Ford F-250, Ford F-350, Ford F-450, Ford F-550, Ford F-650, and Ford F-750. |
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#1
05-17-2010, 12:55 PM
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401 fault
2002 F150 4.2 V6 the service engine light keeps coming on. I have replaced the ptfe sensor, checked the egr pipes for blockage. I took the egr valve off, it had carbon in it but the valve moved up and down, cleaned it as best as I could. Put everything back together and no light yet, but this is the second ptfe sensor I have repalced in 6 months. Anyone else ever have this?
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#2
05-17-2010, 03:37 PM
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Re: 401 fault
When you had the EGR off, did you clean the passages in the intake? If there is a blockage in the passages, that code will occur.
__________________
Being way2old is why I need help from younger minds The sooner you fall behind the more time you'll have to catch up.  HEY Y'ALL--READ THIS Here are some of our old vehicles for sale. 
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#4
05-18-2010, 07:55 PM
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Re: 401 fault
There will be some fall inside. Use a small vacuum with a small nozzle and vacuum it out as you clean. A little falling inside the intake will not hurt anything.
__________________
Being way2old is why I need help from younger minds The sooner you fall behind the more time you'll have to catch up. HEY Y'ALL--READ THIS Here are some of our old vehicles for sale.
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