newbie F250 5.4L 3V HELP!!!
#1
11-25-2013, 06:57 PM
newbie F250 5.4L 3V HELP!!!
P0340, P0344, P0345, and P0349, plus others...
The engine has 91,000 miles on it. I have read several posts. The engine will run good when cold. The engine does have a slight ticking after it warms up. When I come to a stop after the engine is operating temperature, the engine will start to miss and shudder and all 4 above codes come active plus codes P0012 P0022(must of the time), cylinder #8 “comes and goes” (It seems is works sometimes, at least that is what my mec said) and also NO Transmission Temp (don´t know if this has to do with anything or just another bad sensor unit). All 4 codes P0340, P0344, P0345, and P0349 are logged at the same time. I have replaced everything new (cam sensor, spark plugs, coils, vtc solenoid, new ECM) , the cam phasers where not replace, instead I pulled out ones from a perfectly running engine, installed them but had the same issue. At the end went and perform an engine overhaul. In cold starts, engine runs normal…. After a while once it starts getting warm again it start running rough and even stalling.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
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Also, if the engine is missing with the codes active and I rev the engine up it will come back to idle and run great. I have also unplugged each sensor with the engine running which has no effect on the way it runs.<o></o>
I’m out of options; waste lots of money (thought that the overhaul will be my solution) ; my mechanic is going nowhere now. <o></o>
Any and all thoughts will be greatly appreciated. Thanks.<o></o>
The engine has 91,000 miles on it. I have read several posts. The engine will run good when cold. The engine does have a slight ticking after it warms up. When I come to a stop after the engine is operating temperature, the engine will start to miss and shudder and all 4 above codes come active plus codes P0012 P0022(must of the time), cylinder #8 “comes and goes” (It seems is works sometimes, at least that is what my mec said) and also NO Transmission Temp (don´t know if this has to do with anything or just another bad sensor unit). All 4 codes P0340, P0344, P0345, and P0349 are logged at the same time. I have replaced everything new (cam sensor, spark plugs, coils, vtc solenoid, new ECM) , the cam phasers where not replace, instead I pulled out ones from a perfectly running engine, installed them but had the same issue. At the end went and perform an engine overhaul. In cold starts, engine runs normal…. After a while once it starts getting warm again it start running rough and even stalling.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
fficeffice" /><o></o>Also, if the engine is missing with the codes active and I rev the engine up it will come back to idle and run great. I have also unplugged each sensor with the engine running which has no effect on the way it runs.<o
></o>I’m out of options; waste lots of money (thought that the overhaul will be my solution) ; my mechanic is going nowhere now. <o
></o>Any and all thoughts will be greatly appreciated. Thanks.<o
></o>
#4
11-27-2013, 01:07 PM
Tuned
Join Date: Feb 2009
Location: Queens, NYC
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I had a similar issue. It was the phaser:
https://www.ford-trucks.com/forums/1...iagnosing.html
https://www.ford-trucks.com/forums/1...iagnosing.html
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