1997 Ford Explorer This Car Lean Codition Boths Sides Engine 5 0 Thanks

1997 FORD EXPLORER
150,890 MILES
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JVREPAIR
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  • 27 POSTS
this car has lean codition in boths sides of the engine
5.0 what can be the problem in this car thanks for yuors help
Jan 29, 2013 at 12:14 AM
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WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
I see these codes all the time in Fords and it is nearly always caused by a severe vacuum leak. What usually happens is one of the large rubber connectors or PCV hoses collapse and suck a hole right through them.
List for a hissing noise at idle and try to follow it to it's source using your fingers. The sound will change when you block it.
Jan 29, 2013 at 12:22 AM
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