2005 Ford F150 Cam Position sensor Issue
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2005 Ford F150 Cam Position sensor Issue
I have a 2005 F150 with the 5.4. I Got the truck not running. After looking at the codes I found that I was having issues with the cam position sensors. I found that I had no power going to either side and replaced he PCM. I am now getting power to both sides and it starts up every time. However I am only running off 4 cylinders. The Sensor on the drivers side I am getting code P0345 and P0349. I have replaced the sensor and swapped sensors to make sure I didn't buy a bad one. I have checked for power at the plug. Checked for Continuity through both wires and I'm good there. I have put a new connector on the end and have also done a pin drag on the pcm to make sure its getting good connection. I looked in the Sensor hole while turning over and I can see the phaser moving like it should. I have also tried new vvt and all new coils and plugs. The timing components were replaced 30k miles ago by a ford dealership. I am at a loss and not sure what it could be. Does anyone have any suggestions on something else that it could be?
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Joined: Jun 2010
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If you had a meter that could check for AC ripple coming from the alternator you could be sure. If you can't verify that might be a good idea to replace the alternator.
Fords have a way of throwing cam codes when it is really coming from the alternator. What you might try is, clear the codes ,unplug the plug from the alternator , then take the truck for a short ride. If codes don't return, replace alternator.
Fords have a way of throwing cam codes when it is really coming from the alternator. What you might try is, clear the codes ,unplug the plug from the alternator , then take the truck for a short ride. If codes don't return, replace alternator.
Thread Starter
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Junior Member
Joined: Nov 2022
Posts: 2
If you had a meter that could check for AC ripple coming from the alternator you could be sure. If you can't verify that might be a good idea to replace the alternator.
Fords have a way of throwing cam codes when it is really coming from the alternator. What you might try is, clear the codes ,unplug the plug from the alternator , then take the truck for a short ride. If codes don't return, replace alternator.
Fords have a way of throwing cam codes when it is really coming from the alternator. What you might try is, clear the codes ,unplug the plug from the alternator , then take the truck for a short ride. If codes don't return, replace alternator.
I will give that a shot but I’m not just getting a code with no issues. I’m only have passenger side cylinders firing. If I unplug the drivers side sensor I can still start the truck and runs the same. If I unplug the passenger side sensor it will not start at all.
Senior Member
Joined: Jun 2010
Posts: 16,528
Why you not tell me that in original post?
Since we have to start somewhere, I would suggest a compression test . At least we would have some idea if it was mechanical or electrical.
Can we do that?
A lot can happen in 30,000 mi. especially if somebody got loose in there .
Was the PCM programmed for that particular vehicle ?
Since we have to start somewhere, I would suggest a compression test . At least we would have some idea if it was mechanical or electrical.
Can we do that?
A lot can happen in 30,000 mi. especially if somebody got loose in there .
Was the PCM programmed for that particular vehicle ?
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