need help asap, 4.7 wont go over 3000 rpm
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From: cape breton nova scoita canada
all joiking aside here xD but i ran the codes and seems like im getting p0340 witch would be cam and i just replaced it could be faulty but im also getting a crank code aswell Error Code P1391 is defined as CMP or CKP Signal Intermittent Condition. so im taking a guess and replacing both the crank sensors -_-
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From: cape breton nova scoita canada
and actually guys gotta make sure you drain all your break fluid and put anti freeze in it were suppose to get a flash frezze wouldnt wanna see anyhting happen to those trucks 
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From: Clayton MI
Brake fluid? Erm..... I have never even seen anti-freeze for brake fluid......
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From: cape breton nova scoita canada
Not sure what brand they were there from car quest but I’m not getting a crank code or can code just interrupted signal any ideas if you have to reset the computer or anything ?
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From: Clayton MI
Basically what that means is, the PCM is not seeing the signal it thinks it should from the sensors. A typical symptom for a failing/cheap sensor.