A couple days ago my truck threw a P0174 code (lean bank 2) followed shortly by a P0171 (leak bank 1). It seemed to be running fine aside from some pinging, no stumbling or drivability problems. O2 sensors were replaced 26K miles ago with direct fit Bosch (same as OE), and since the codes were for both banks I didn't think it was an O2 sensor that went bad. There was really nothing indicating a fuel issue and the fuel filter has been changed regularly, so I figured the problem was somewhere in the intake area or vacuum lines.
I checked all of the vacuum lines and they were good, but the PCV hose was shot.
Over time it had collapsed in on itself, deteriorated, then developed a hole. I think that's my lean code.
Luckily Ford has updated the part with ribs to prevent the collapse and it is available...
Yes, those are coolant lines on the PCV valve.
One little problem though, that tube has to go inside the intake manifold, and there's about 5" of space between where this part goes and the firewall. Luckily, in true Ford fashion, the key to everything is the zip tie. Yes, that black zip tie is a factory installed component of this part, and is what holds the tube in place.
So off came the zip ties, and I was able to swap the hose part of this contraption while leaving the original tube inside the intake manifold.
I did not have a matching black zip tie in the correct size on hand, so white had to do. I also replaced a section of brake booster hose that had a pinhole in it, and a section of vapor hose for the EVAP purge valve too. Hopefully that's the end of P0174 and P0171. The light is off for now.
The original zip tie did work fine, so I can't really fault Ford for using it, but only they would come up with a PCV hose this complex, then tie the whole thing together with a zip tie.
I checked all of the vacuum lines and they were good, but the PCV hose was shot.
Over time it had collapsed in on itself, deteriorated, then developed a hole. I think that's my lean code.
Luckily Ford has updated the part with ribs to prevent the collapse and it is available...
Yes, those are coolant lines on the PCV valve.
One little problem though, that tube has to go inside the intake manifold, and there's about 5" of space between where this part goes and the firewall. Luckily, in true Ford fashion, the key to everything is the zip tie. Yes, that black zip tie is a factory installed component of this part, and is what holds the tube in place.
So off came the zip ties, and I was able to swap the hose part of this contraption while leaving the original tube inside the intake manifold.
I did not have a matching black zip tie in the correct size on hand, so white had to do. I also replaced a section of brake booster hose that had a pinhole in it, and a section of vapor hose for the EVAP purge valve too. Hopefully that's the end of P0174 and P0171. The light is off for now.
The original zip tie did work fine, so I can't really fault Ford for using it, but only they would come up with a PCV hose this complex, then tie the whole thing together with a zip tie.
