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Old Apr 27, 2025 | 07:59 AM
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cps

Hey guys,
Been a long time since i was on FTE regularly and whe i was it was for my 7.3. This place was a gold mine of info for that, hoping it will be the same for my sons F150.
We are thinking that he has bad cam positioning sensors. It is a 2011 5.0. 2wd ....Well on the way to pic it up I grabed some new sensors thinking we would just swap them out like i would do on the old diesel.
I am sure you all are laughing by now.
After finding out where they are I am guessing the motor is going to have to be pulled forward a little at the very least,
If anyone has done these and has some pointers I would greatly appreciate some advice.
thank you all much
 
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Old Apr 27, 2025 | 09:14 AM
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From: Sportsman's Paradise
Originally Posted by caverjoe
Hey guys,
Been a long time since i was on FTE regularly and whe i was it was for my 7.3. This place was a gold mine of info for that, hoping it will be the same for my sons F150.
We are thinking that he has bad cam positioning sensors. It is a 2011 5.0. 2wd ....Well on the way to pic it up I grabed some new sensors thinking we would just swap them out like i would do on the old diesel.
I am sure you all are laughing by now.
After finding out where they are I am guessing the motor is going to have to be pulled forward a little at the very least,
If anyone has done these and has some pointers I would greatly appreciate some advice.
thank you all much
Blindly replacing parts based on a completely different vehicle and engine platform is not the best way to proceed. What symptoms do you have? Codes stored in the pcm? Need to break this down so you don't waste any $$.
 
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Old Apr 27, 2025 | 12:01 PM
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My bad I should have said we have done our research and codes and symptoms are pointing to a, bad CPS, no likely but it could also be cam phasers or timing chain tensioner, but I am leaning toward the CPS.
I was not baseing it off my old diesel.
thank you though,
 
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Old Apr 27, 2025 | 01:59 PM
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Throw the codes at us anyway.

Good sensors are usually tossed in the trash when they’re actually doing their job.

If you’re getting noises that don’t belong (I don’t mean ford says “that’s normal”, either…), then it’s not sensors.
 
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Old Apr 27, 2025 | 03:06 PM
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p0345, not just noises, he said it had a long crank for awhile, and then it pretty much stopped on him in the Mc D drive through, now iot idels rough, giving gas gets worse and no power in gear. It will rev in neutral but rough and not like it should.
It didnt have misfire codes untill obviously i ran it to get it on the trailer then they showed up. Other than the occasional long crank to start he said it had been running fine.
 
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Old Apr 28, 2025 | 04:01 AM
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Going by that code and the symptoms, I'm leaning towards timing chain issues such as cam phasers and such. Sensors don't typically go bad, they typically tell you what system is having issues that then need to be diagnosed. Looking at everything so far, and if the engine has anything close to 100,000 miles or better.

If you'd like to be certain, you'll need to run the checks on the electrical part of the system to rule that out 1st. You can find all the test procedures for the truck from the Ford shop manual.
 
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Old Apr 28, 2025 | 08:26 AM
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yeah I was kind of thinking that myself, just did not want it to be, LOL. Not sure the cps can be changed with out moving the engine anyway. Tight spot between the back of that head and the firewall.
 
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Old Apr 28, 2025 | 08:41 AM
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Originally Posted by RLXXI
Going by that code and the symptoms, I'm leaning towards timing chain issues such as cam phasers and such. Sensors don't typically go bad, they typically tell you what system is having issues that then need to be diagnosed. Looking at everything so far, and if the engine has anything close to 100,000 miles or better.

If you'd like to be certain, you'll need to run the checks on the electrical part of the system to rule that out 1st. You can find all the test procedures for the truck from the Ford shop manual.
So I actually just went and pulled thecodes myself and along with the 0345 there is also a 0349, if that sheds light on anything.
 
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Old Apr 28, 2025 | 12:47 PM
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The book only calls for 1.5 hrs to change all 4 Im going to take a closer look but I think I will be calling BS, for this truck anyway. maybe the motor got shoved back or mounts wore out, but when I looked the other day it seemed like you couild barely get fingers in there
 
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Old Apr 28, 2025 | 06:34 PM
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This is where you need to be.



#5 and #8


Fortunately for you this would be the driver side head where the two CMP sensors in question are located. Forget about that though, 1st check all the wiring for rodent damage, previous owner butchering radio wires, etc... if nothing is obvious then you need to get the manual I linked and run the pinpoint tests to make sure you control what happens to your wallet.
 
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Old Apr 28, 2025 | 09:30 PM
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I really appreciate your time and advice, however my son and some of his friends had already unbolted everything got the motor pulled forward and removed sensor A bank 2 which is what the code called for and sure enough it will not ohm out lucky for him I guess. I was actually betting on the tensioners. He and a lot of his buddies have these f150s around here so they are getting practice, LOL.

Now my next question, just because I know on my 7.3 it did not like parts store brand sensors, had to go with FoMoCo or international. Would you say it is the same for these f150s. I think they already gave him the wrong exahust sensor. It does not neck down like the one he pulled out it is same shape and size as the intake sensor just black.
thanks again
 
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Old Apr 28, 2025 | 10:08 PM
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Same thing as far as parts goes. I always stick with Ford or Motorcraft.
 
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Old Apr 29, 2025 | 04:42 AM
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Originally Posted by RLXXI
Same thing as far as parts goes. I always stick with Ford or Motorcraft.
I agree and can't mentioning nearly everyone using Dealer-supplied OEM parts tend to have a massive near zero incident of immediate problem after DIY repairs.
 
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Old May 5, 2025 | 01:32 PM
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Originally Posted by RLXXI
Same thing as far as parts goes. I always stick with Ford or Motorcraft.
So quick update, Secondary timing chain drivers side broke, it appears the top guide broke up and tried to go between the gear and chain.
I am looking for a full timing kit of course, talked to MMR they are back ordered untill later in the month, I talked to LMR and they told me the gen 1 mustang kit is diffrent from the gen 1 f150?
I did not think there where diffrences in the gen 1 motor as far as the timing kits would go, but it has been a long time since I messed with any of that. MMR told me there is no diffrence in the gen 1s Can you confirm or deny if that is correct?
Or maybe you have advice on where to source a kit. that 6-700 dollar complete kits is what i was looking to get, would have already ordered if they could send it out stat.

Thanks again
Joe
 
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Old May 5, 2025 | 02:47 PM
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From: Sportsman's Paradise
Originally Posted by caverjoe
So quick update, Secondary timing chain drivers side broke, it appears the top guide broke up and tried to go between the gear and chain.
I am looking for a full timing kit of course, talked to MMR they are back ordered untill later in the month, I talked to LMR and they told me the gen 1 mustang kit is diffrent from the gen 1 f150?
I did not think there where diffrences in the gen 1 motor as far as the timing kits would go, but it has been a long time since I messed with any of that. MMR told me there is no diffrence in the gen 1s Can you confirm or deny if that is correct?
Or maybe you have advice on where to source a kit. that 6-700 dollar complete kits is what i was looking to get, would have already ordered if they could send it out stat.

Thanks again
Joe
Couldn't say what if any differences between gens, I just put the parts on the parts guy gives me, lol. You might be better off getting the individual components rather than some over priced all in one kit. Have a look here....

Oh and just an FYI, Ford calls them timing belts for some odd reason but it is indeed chains. $27 bux for a secondary chain.
 
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