P0351, P0345 Stalling
Thread Starter
|
New User
Joined: Oct 2013
Posts: 6
Likes: 0
P0351, P0345 Stalling
Hello FTE,
I recently bought a used 2006 Ford Expedition. Last weekend the truck started shaking and the CEL came on. It has an intermittent misfire on Cylinder 1 (Climbing up Hills seems to trigger this), and it threw codes P0345 Cam Position Sensor Bank 2, and P0351 Ignition Coil Primary/Secondary Circuit Fault. I have traced the wiring harness and read online to verify that these two devices are linked and share the same wiring harness. I have also experienced stalling prior to and after the nastier issues related to the misfires, and I have read that a heat issue caused by the wires leading from the PCM to the engine causes this on a lot of 5.4 Liter engines for Ford trucks and SUVs. To be sure, what is the general location of this issue on the passenger side, on top or below the engine, front or back closer to the firewall, and I would like the following answered by all those interested:
Is there any place I can buy a full wiring harness?
Is there a potential issue with the PCM?
Is there voltage/resistance testing I can do to verify links to the Coil and CPS?
Should I replace the Coil/Spark plug for Cylinder 1 and the Cam Position Sensor as a result of these faults?
Is there a deeper issue that I may be missing with these faults?
I recently bought a used 2006 Ford Expedition. Last weekend the truck started shaking and the CEL came on. It has an intermittent misfire on Cylinder 1 (Climbing up Hills seems to trigger this), and it threw codes P0345 Cam Position Sensor Bank 2, and P0351 Ignition Coil Primary/Secondary Circuit Fault. I have traced the wiring harness and read online to verify that these two devices are linked and share the same wiring harness. I have also experienced stalling prior to and after the nastier issues related to the misfires, and I have read that a heat issue caused by the wires leading from the PCM to the engine causes this on a lot of 5.4 Liter engines for Ford trucks and SUVs. To be sure, what is the general location of this issue on the passenger side, on top or below the engine, front or back closer to the firewall, and I would like the following answered by all those interested:
Is there any place I can buy a full wiring harness?
Is there a potential issue with the PCM?
Is there voltage/resistance testing I can do to verify links to the Coil and CPS?
Should I replace the Coil/Spark plug for Cylinder 1 and the Cam Position Sensor as a result of these faults?
Is there a deeper issue that I may be missing with these faults?
Thread Starter
|
New User
Joined: Oct 2013
Posts: 6
Likes: 0
Update to Ford Expedition P0351, P0345, Stalling
So I've changed the Coil and Spark Plug on Cylinder 1. The heavy shaking that comes with a misfire seems to have been cured. The truck has a slight hesitation when climbing hills but it's no where near as bad as it was before the changes made to Cylinder 1. Now I hear a rattling sound when ever I let off the gas. Is it possible the misfire caused one of my timing chains to jump a tooth. Other than this symptom and the hesitation the truck has returned to the condition that I bought it at. I assume that it needs a tune up so I will probably replace all Coils and plugs on the remaining cylinder, but I sure would like to know about that rattle and what maybe causing it to hesitate under load, while turning, or while traveling in reverse.
Fleet Owner
Joined: Apr 2008
Posts: 24,324
Likes: 5,135
From: 0,0,1
Both of these are symptoms of a bad catalytic converter. The misfire on the number one cylinder could have damaged the catalytic converter.
Thread Starter
|
New User
Joined: Oct 2013
Posts: 6
Likes: 0
Looks like I'll be shopping at Rock Auto! Should I wait for the truck to throw codes since it takes about 50 miles of driving or so for the Cats or O2 sensors to show up (At least it does on my little baby shadow me Mustang). Not sure about an Expedition but I have cleared the misfire codes and they haven't come back. Typically it takes about a mile or less for misfires to show up as its an immediate problem. I've also read and seen videos last night that point to the VCT solenoids causing the issue. Also could a bad Cat choke the engine and cause it to stall? I will continue to research and I appreciate your reply alloro!
Fleet Owner
Joined: Apr 2008
Posts: 24,324
Likes: 5,135
From: 0,0,1
Sure, but a partially clogged cat will reduce power due to the reduce exhaust flow causing back up. A partial clog tends to show up only under heavier engine load such as when climbing a hill.
Thread Starter
|
New User
Joined: Oct 2013
Posts: 6
Likes: 0
Update to Ford Expedition P0351, P0345, Stalling
So after about 50 miles the Expedition finally threw the following codes:
P0022 - Camshaft Over Advanced Bank 2 (Source of Rattle)
P0340 - Camshaft Position Sensor Circuit Fault Bank 2
I say source of Rattle as after researching the P0022 it's pointing to a VCT Solenoid stuck open. So I'm going to replace both VCT Solenoids and both Camshaft Position sensors. I'm also going to give my truck a full tune up, Oil Change, spark plugs, and new coils as it probably needs one. I will update again once all this is done just so people have something to go by in the future.
P0022 - Camshaft Over Advanced Bank 2 (Source of Rattle)
P0340 - Camshaft Position Sensor Circuit Fault Bank 2
I say source of Rattle as after researching the P0022 it's pointing to a VCT Solenoid stuck open. So I'm going to replace both VCT Solenoids and both Camshaft Position sensors. I'm also going to give my truck a full tune up, Oil Change, spark plugs, and new coils as it probably needs one. I will update again once all this is done just so people have something to go by in the future.
Thread Starter
|
New User
Joined: Oct 2013
Posts: 6
Likes: 0
So after all that, now I'm getting P0011, P0012, P0021, P0022, P0301, P0303, P0307, P0340, P0345.
That's 3 misfires that are intermittent, over advanced on both CAMs, and both CAM sensors having a circuit fault.
I climbed a steep hill as a test and it looks like my baby just couldn't handle it. On a straight road, or going down hill there is no problem. Climbing a hill causing a loss of power, and intermittent misfires. With all of those codes, does it look like the PCM is bad, or should I start tracking down a potential short in the wiring harness. That's a lot of faults in my opinion not to be something central to the system? I will state that my truck is missing the cover for the PCM unit.
That's 3 misfires that are intermittent, over advanced on both CAMs, and both CAM sensors having a circuit fault.
I climbed a steep hill as a test and it looks like my baby just couldn't handle it. On a straight road, or going down hill there is no problem. Climbing a hill causing a loss of power, and intermittent misfires. With all of those codes, does it look like the PCM is bad, or should I start tracking down a potential short in the wiring harness. That's a lot of faults in my opinion not to be something central to the system? I will state that my truck is missing the cover for the PCM unit.
Trending Topics
Fleet Owner
Joined: Apr 2008
Posts: 24,324
Likes: 5,135
From: 0,0,1
Every one of those codes relates to the camshaft position sensors. I'd start looking for a bad wire issue before anything else.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Fleet Owner
Joined: Apr 2008
Posts: 24,324
Likes: 5,135
From: 0,0,1
Here is a PDF of the wiring for the camshaft position sensors. As you can see, both sensors share a pair of wires. A break in either of these wires will disable any signal from the cam sensors and cause the PCM to use built in default parameters instead.
Thread Starter
|
New User
Joined: Oct 2013
Posts: 6
Likes: 0
Thanks Alloro,
I'll check that out. Also, would it be a good idea to replace the entire main engine harness? I have heard and read about shorts being caused at the firewall, by the power steering fluid reservoir, and down by the power steering pump due to the engine or heater hoses burning their way through the external jackets.
I'll check that out. Also, would it be a good idea to replace the entire main engine harness? I have heard and read about shorts being caused at the firewall, by the power steering fluid reservoir, and down by the power steering pump due to the engine or heater hoses burning their way through the external jackets.
Fleet Owner
Joined: Apr 2008
Posts: 24,324
Likes: 5,135
From: 0,0,1
That's a fairly involved project for something that might not being causing any issues. I would only change it if I found that it was deteriorating badly.
Thread
Thread Starter
Forum
Replies
Last Post
msm7c
1997 - 2003 F150
2
May 7, 2005 06:11 AM