Ford Ranger Forums banner

1 - 2 of 2 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter #1
I have been dealing with a pesky P0171 or P0174 code.

New MAF
New Idle Air Control Valve
Shop put in new intake manifold gaskets
New injectors
New Fuel Filter

I just did a smoke test to check for a vacuum leak. only place smoke is coming out is the Idle Air Control Vale and it was just replaced

Any ideas?
 

·
Registered
Joined
·
8 Posts
There is a small vac hose elbow, check for that... on left side next to valve cover, that seems common on the 4.0 do a search...just had the check engine light on my 3.0 PO171...replaced 02 sensors 143k all ok now...
 
1 - 2 of 2 Posts
Top