1999 Ford Ranger PO171 &PO174

Tiny
EDDIEU
  • MEMBER
  • 1999 FORD RANGER
  • 4.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
Lean bank 1&2. Replaced uper intake and lower intake gaskit do to vacuum leaks. Replaced bank 1 sensor 2 do to 0 volt reading on scaner. Road test 50 to 60 miles codes come back. Fuel pressure is 60 p.S.I. Fuel filter good cleaned M.A.F. Clar codes road test 60 miles befor codes come back. Check on scaner downstrme flow tube off what is that?
Sunday, April 13th, 2014 AT 8:13 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Did you replace isolator bolts? Maf is a common problem on these clean carefully with choke or electrical cleaner, replace air filter also check for connection at pcv and any engine grommet will cause the same problem.
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Thursday, September 26th, 2019 AT 10:13 AM
Tiny
EDDIEU
  • MEMBER
  • 5 POSTS
Replaced M.A.F. Road test 200 miles. Truck fixed
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Thursday, September 26th, 2019 AT 10:13 AM

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