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Need help with codes/repairs 96 F150 4.9

  #1  
Old 09-07-2016, 09:03 AM
jmccracken1214
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Need help with codes/repairs 96 F150 4.9

Truck is 1996 F150 XL 2wd, 2 door, with the 4.9

Got codes checked today since the previous owner disabled the CEL somehow. I have 5 codes.. Looking for help and ideas on where to start with repairs.

Codes:

P1443:
Evaporative Emission Purge Valve Malfunction

P0411:
Secondary Air Injection System Wrong Flow

P0301:
Cylinder 1 Misfire Detected

P0171:
System Too Lean Bank 1

P0174:
System Too Lean Bank 2
 
  #2  
Old 09-07-2016, 09:57 AM
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Sounds like at least part of the problem is a vacuum leak.
 
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Old 09-08-2016, 10:59 AM
jmccracken1214
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So, where to start? I was thinking of replacing the purge valve, and then putting the OEM belt back on so my air pump works and maybe thatll take care of the lean issue?
 
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Old 09-21-2016, 02:10 PM
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any more ideas on the issues?
 
  #5  
Old 09-21-2016, 07:50 PM
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Start by searching for vacuum leaks. Looking for open/cut vacuum lines, especially around the purge valve and AIR solenoid stuff.
 
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