Recent content by Mr67Stang
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2 cylinder miss
You say the cylinders are "low"... Give us the numbers for all cylinders so we can see what you are seeing. + or - 10 lbs is acceptable. Are these three cylinders 40 lbs light? I will also say, it is difficult to get a good traditional compression test done on these engines with the spark plug...- Mr67Stang
- Post #3
- Forum: 1st Gen - 1997 - 2002
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So the Dealer said: "You Need a New Engine"
Most dealer service departments and regular shops for that matter do not have "mechanics" working for them. They are simply "parts replacers". Sure, it would have fixed your problem, but they just do not have the knowhow to actually repair anything.- Mr67Stang
- Post #9
- Forum: Engine & Performance
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2000 Expedition 5.4 4x4 P0171 & P0174
For anyone following, I will let you know the problem appears to be solved. After removing the intake manifold and inspection revealed NO cracks but the gaskets appeared that they could allow undeterred air in, I replaced the gaskets and put it all back together. Just for good measure, I soaked... -
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2000 Expedition 5.4 4x4 P0171 & P0174
Yes, I cant stand that I cant see the manifold well enough to be certain that it is not the problem. Once removed, I will thoroughly clean it and inspect it for cracks. I was not impressed with the condition of the upper gasket. the amount of dirt on top of the gasket where you would expect it... -
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2000 Expedition 5.4 4x4 P0171 & P0174
Yes, I cleared the codes. In fact, right now there are no codes. But, I can see the idle run up to 2200 rpm at start up and see the LTFT go to 25% after getting to closed loop running. So, the codes will come back given enough time. I checked the EGR valve today. I removed it and applied vacuum... -
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2000 Expedition 5.4 4x4 P0171 & P0174
I appreciate the input Gumbyalso. I am leaning heavily in that direction. Did you get your replacement manifold from Ford or one of the local parts houses? Also does anyone know if a 1998 5.4 manifold would fit on a 2000 5.4? I also have a '98 and it's manifold is aluminium instead of plastic. -
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97 expedition 5.4 stumble at 1300 - 1500 rpm
watching...- Mr67Stang
- Post #4
- Forum: Engine & Performance
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2000 Expedition 5.4 4x4 P0171 & P0174
I have edited the original post to add additional tests and observations I have done today. -
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2000 Expedition 5.4 4x4 P0171 & P0174
I have been through all of this too... I fear I am about to remove the intake manifold and inspect for cracks.... The carburetor cleaner test did not find any. -
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2000 Expedition 5.4 4x4 P0171 & P0174
I went through every bit of that a few times... no questions answered but I did learn a lot. That guide is why I upgraded and bought a scanner with live data. -
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2000 Expedition 5.4 4x4 P0171 & P0174
It is a 2000 model EB. 175k miles. The O2 sensors look new... like the previous owner could not figure it out either. He was a scammer. He had a 1998 transmission in it and told us it shifted hard because it needed a speed sensor. I ended up finding the '98 transmission has no place to put that... -
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2000 5.4 4x4 P0171 & P0174
I was not sure where was more appropriate to post this. I will delete it if I can.- Mr67Stang
- Post #3
- Forum: Engine & Performance
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Best fuel additive for carbon deposit removal?
I will say Seafoam as well. However, Lucas just came out with a competitive product. I work for a major retail auto parts store and can see no difference between the two products. Check out the related video.... -
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2000 Expedition 5.4 4x4 P0171 & P0174
I think I got these codes right, but they equate to Lean on banks one and two. Eventually, I get the codes for Bank 1 & 2 Oxygen sensors lack of switching indicating lean condition. When I start this truck up it revs to 2200 rpm and takes a bit to come down. I have done the basics as far as... -
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2000 5.4 4x4 P0171 & P0174
Deleted by author.- Mr67Stang
- Thread
- Replies: 2
- Forum: Engine & Performance
