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One day I hope to fix these Fords I have for good, blow them up or make a Crappie bed out them.
I have a Ford F150 Lariat 5.4 Liter, I bought it a little over a year ago. About 5 days after I bought it i got a check engine light. I came for a Ford dealer who rigged a few things on the truck, I won't tell you what I actually think about them.
Long story short version, I love the truck and figured I could fix it. P0171 lean on bank 1, P0174 lean on bank 2. Ask any car guy and they will probably tell you this is a vacuum leak.
I ordered the vacuum hoses and while I was waiting on them, another code, camshaft sensor.
So, we started there, hoses, camshaft sensors and ended up replacing ever sensor on the truck. Shortly after we got started the truck would die when you were coming in for a stop. Once it hit 1 gear it would stall. I work out of my truck and we are supper busy in the summer months (AC Service Company), with no time to do anything else to it, I just would power brake it and deal with it.
Christmas Break with a little time I decided to solve the mystery once and for all. Ordered intake gasket kit, pulled the truck into one of the shop bays and started removing everything. I seriously thought I had a crack in the intake or gasket failed. I couldn't find a KZitem video about what we actually found so I decided to share this info. The hose on the bottom passenger side was unplugged, it had a good covering of dust on the inside of it so the hose has been off for a while.
I didn't have to tare mine down to fix this issue, but I did to find it though.
If you remove the computer on the passenger side firewall, there should be enough room to get your hand down in there, it sucks, but is doable. 2 other ways to check, find the plug on the fuel rail, there is another something on that plug, that is the vacuum line that plugs in the intake. Be very careful not to pull on it very hard, but if it is unplugged, you shouldn't have any resistance.
3rd is an inspection camera.
I am not a mechanic, just someone who doesn't want anyone else touching my Truck. I am sort of funny that way.
Good luck and I hope this help. At least if you know what you're dealing with it may make the cost almost nil if your just plugging a hose bad in.
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Негізгі бет 2004 Ford F150 engine dies when stopping, code lean on bank one and bank two P0171 P0174
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