Anyone help with a 5.4 engine issue?
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Cargo Master
Joined: Oct 2010
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Anyone help with a 5.4 engine issue?
https://www.ford-trucks.com/forums/1...ing-noise.html
I posted that last night in the 5.4 section but there does not seem to be a lot of activity there.
Can anyone think of a reason for the suction and noise? It almost sounds like a loose boost hose on a diesel.
I have done diesel work for the last few years and not a whole lot of work on the newer gas motors.
I posted that last night in the 5.4 section but there does not seem to be a lot of activity there.
Can anyone think of a reason for the suction and noise? It almost sounds like a loose boost hose on a diesel.
I have done diesel work for the last few years and not a whole lot of work on the newer gas motors.
FTE Leadership Emeritus
Joined: Sep 2000
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From: Stephensville WI
Copied from your other post:
Your PCV should be on the valve cover, passenger side about 6" back. That would be a good place to start.
Also scan the entire engine bay for any loose or cracked hose.
This just graced my door and I am kinda at a loss as to what it could be. I am hoping that maybe one of you could help me out as to what it is.
Codes in it are #8 cylinder misfire, evap emission leak large, and random misfire. It is also giving a check fuel cap message on the message center.
It is a 2006 f250 4x4 106k miles. Within seconds after cranking, it will develop a whirring sound. Almost sounds like a bad bearing. Taking the belt off does not make the sound go away.
Anyway, if you take the oil fill cap off, the sound goes away. If you try to take it off with it running, it has quite a suction on it. It makes a sucking sound there if it is turned off and you are there.
I am thinking valve and will try to diagnose further Monday but have any of you experience such a thing? I looked for a pcv valve but only found a tube with a heater built into it. Is there another one somewhere?
Codes in it are #8 cylinder misfire, evap emission leak large, and random misfire. It is also giving a check fuel cap message on the message center.
It is a 2006 f250 4x4 106k miles. Within seconds after cranking, it will develop a whirring sound. Almost sounds like a bad bearing. Taking the belt off does not make the sound go away.
Anyway, if you take the oil fill cap off, the sound goes away. If you try to take it off with it running, it has quite a suction on it. It makes a sucking sound there if it is turned off and you are there.
I am thinking valve and will try to diagnose further Monday but have any of you experience such a thing? I looked for a pcv valve but only found a tube with a heater built into it. Is there another one somewhere?
Also scan the entire engine bay for any loose or cracked hose.
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Cargo Master
Joined: Oct 2010
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Likes: 16
There was lots of vacuum on the oil cap......lots. I am surprised the joker had any oil any it.
We pulled the PCV out and it was good. Somebody somewhere swapped a pcv intake line to the passenger valve cover with a vacuum line. It was one of the little quick connect lines at the throttle body. Both of them are there. Took a while and known good truck to trace all the hoses out. We do mostly big diesel work so it was quicker to just look at the other truck if anything looked out of place.
The skip was a wet coil. Replaced with a new one, and a plug for good measure and all is good.All plugs were replaced 3 months ago so maybe the old coil did not seal correctly. All that is left is an abs sensor and straightening/replacing the tie rod assembly. It has a hump in it. Then it will get 4 new tires and brakes.
It has been out in the bushes for a while. Not sure if they went swimming with it or not but the headlights (sealed beam) are also full of water. It will get those too. They sunk their 6.0 truck earlier this year and it swallowed enough water to cut off. No long lasting effects once all the water was out of it. Fortunately, they do know when to quit and call a hook.
Thanks for the help.
We pulled the PCV out and it was good. Somebody somewhere swapped a pcv intake line to the passenger valve cover with a vacuum line. It was one of the little quick connect lines at the throttle body. Both of them are there. Took a while and known good truck to trace all the hoses out. We do mostly big diesel work so it was quicker to just look at the other truck if anything looked out of place.
The skip was a wet coil. Replaced with a new one, and a plug for good measure and all is good.All plugs were replaced 3 months ago so maybe the old coil did not seal correctly. All that is left is an abs sensor and straightening/replacing the tie rod assembly. It has a hump in it. Then it will get 4 new tires and brakes.
It has been out in the bushes for a while. Not sure if they went swimming with it or not but the headlights (sealed beam) are also full of water. It will get those too. They sunk their 6.0 truck earlier this year and it swallowed enough water to cut off. No long lasting effects once all the water was out of it. Fortunately, they do know when to quit and call a hook.
Thanks for the help.
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