Answers
Jan 30, 2024 - 08:13 PM
If you're still having issues you should check the wiring and connections related to the camshaft position sensor for any damage, loose connections, or corrosion. Verify the camshaft and crankshaft timing alignment, as improper timing can contribute to a misfire. Conduct a compression test on Cylinder #4 to ensure there are no issues with compression. Test the fuel injector for Cylinder #4 to confirm proper functioning. Additionally, inspect for vacuum leaks in the intake manifold or vacuum lines.
Jan 31, 2024 - 12:33 AM
Hey there, Dean!
Rough idle and a dead miss can be a real headache. You've already tackled the misfire on Cylinder #4 by swapping the coil pack, good move. The persistent P0345 code pointing to the Camshaft Position Sensor (CPS) on Bank 2 is a bit tricky.
Since you've replaced the CPS, there might be a couple of things going on. Double-check the wiring and connectors related to the CPS; sometimes, a loose connection or damaged wire can throw things off. Also, make sure the new CPS is the right one and properly installed.
A P0345 code can also be triggered by other issues like vacuum leaks, faulty spark plugs in nearby cylinders, or even internal engine problems. Consider checking those out if the wiring and sensor seem OK.
If all that checks out, it might be worth investigating the cam phasers. They can cause similar issues and are known troublemakers in the 5.4L 3v engines. If they're not functioning correctly, they can mess with the timing and lead to rough idling.
You may need some parts in the process, click this link to be directed to our website and enter the vehicle information, followed by the part name. Our system will display available parts for your vehicle.
Give those suggestions a shot, and hopefully, you'll get that F150 purring smoothly again. If the issue persists, it might be time to dig a bit deeper with a more comprehensive diagnostic. Good luck!
Rough idle and a dead miss can be a real headache. You've already tackled the misfire on Cylinder #4 by swapping the coil pack, good move. The persistent P0345 code pointing to the Camshaft Position Sensor (CPS) on Bank 2 is a bit tricky.
Since you've replaced the CPS, there might be a couple of things going on. Double-check the wiring and connectors related to the CPS; sometimes, a loose connection or damaged wire can throw things off. Also, make sure the new CPS is the right one and properly installed.
A P0345 code can also be triggered by other issues like vacuum leaks, faulty spark plugs in nearby cylinders, or even internal engine problems. Consider checking those out if the wiring and sensor seem OK.
If all that checks out, it might be worth investigating the cam phasers. They can cause similar issues and are known troublemakers in the 5.4L 3v engines. If they're not functioning correctly, they can mess with the timing and lead to rough idling.
You may need some parts in the process, click this link to be directed to our website and enter the vehicle information, followed by the part name. Our system will display available parts for your vehicle.
Give those suggestions a shot, and hopefully, you'll get that F150 purring smoothly again. If the issue persists, it might be time to dig a bit deeper with a more comprehensive diagnostic. Good luck!
Feb 14, 2024 - 08:30 AM
I recently had this problem on my 06 Expedition. I replaced the coil as per code reader. Same thing happened again. Ended up being the spark plug.Had my mechanic replace the plug. As they hard to remove. And known to snap of. Problem solved.
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