hi i am having trouble with the camshaft position sensor,i keep getting check engine code for it. i changed both still coming up n then its just the one side the code is throwing so i switched the two.. code still coming back on i had may truck in my garage for about a month now have changed all 8 spark plugs and coil packs,vct solenoid,fuel filter,air filter and the camshaft position sensors first problem was i had a misfire on coil 6 then after replacing the coil packs n spark plugs i drove for about 5 miles n its started to almost stutter n bad engine noise i got it home checked the codes-camshaft sensor,vct solenoid and truck running to lean.. any help ???? i checked all connectors and checked all the hoses.... it has a rough idle n louder noise on drive side under valve cover, idles right around 5-600 rpms.... any help would b great its on a 4.6L v8 2007 mercury mountaineer

 

Any ideas???....

YES!... Quit throwing parts at it and start with proper diagnostics..... Philip

 

yeah i took it to the ford dealership first they ran the diagnostics test and compression test first. they gave me the reading n wanted $800 for parts n everything they had listed i replaced... n now i have this problem.. i bought an OBD II code reader n these are the codes im coming up with now....

 

codes p0340 and p0344

 

Cam phase engine ? Are you using the proper oil and filter ?Improper oil viscosity can cause many issues . Just a thought !

 

yeah i had oil changes done at ford dealer.. and whats Cam phase???? never heard of it but when i unplug the battery it runs fine at idle then i drive it about 3 miles and its starts chattering n gets sluggish n wont even rev up... the problem is even worse when i turn the heat on...

 

Ck wiring to cam sensor . It may just be a bad sensor . I see a lot of them go bad on Powerstrokes . Not on the 4.6 .

 

ok so i changed the oil that help for the camshaft noise but now the problem lies is it is running to rich/lean i changed fuel filter n air filter already n rechecked to make sure everything was on correctly n nothing was leaking... seen posts about clean throttle body will do that now.. will keep u posted thanks

 

ok all done still the same its running really lean. then also if i turn the heater on it really dies down/ will shut off if i dont hit the gas...maybe taking it to a mechanic n just forking out the $$$$ to get it fixed......

 

I would take it in . If a VCT engine , you may have phaser or solenoid issues .

 

Hi I am current experiencing rough running and stalling at low rpm with engine light on. I went to Autozone and they read the code and it was the cam pos sensor. I replaced it. Drove around the neighborhood no light thought it was fixed. I went to drive it today the problem returned and I went back to Autozone and the same result, cam pos sensor. I have seen others post they replaced bother cam pos sensors. I thought there was only one. Am i wrong in this? I have a 07 F150 with 4.6l.

 

Welcome to the forum!

There are nearly zero diagnostic codes that state some particular part is bad. Instead, the diagnostic codes tend to identify some system that is reading a value that is out of tolerance from the expected value range. Please provide the actual diagnostic code number that was triggered and we can provide the various items to be checked.

If your 4.6L F-150 is an overhead camshaft engine there could very well be two camshaft position sensors.

-Rod