View Poll Results: 5.4 3v code po174? Help
5.4 3v
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2005 5.4 3v triton. Code po174. Need help
10-22-2016, 05:06 PM
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2005 5.4 3v triton. Code po174. Need help
I've got a 2005 5.4 3v. I have changed plugs and coils. The mass air flow sensor. Code po174 pops up. Tried the the water test around manifold. Nothing happened. It idles ok but when put into gear it want to die. Been told vac leak but don't have smoke machine. Also been told there is a vacuum line behind intake between fire wall. Does anyone know where it might be located @? Need help!!
