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Dec 31, 2007 - 14 posts - 6 authors
Tech Code "dtc P0014" 2003 Trailblazer - posted in Chevy ... it had been serviced before for the same thing in 2003 or 2004! ... replace the camshaft actuator solenoid, change the engine oil and .... The extended war. co. prob. would not be to happy since they already fixed the sensor once or twice already.
The code P0014 is for Camshaft Positon Sensor Actuator Bank 1. The possible causes are incorrect camshaft timing, wiring problems (harness/wiring) in intake timing control valve solenoid system; continuous oil flows to VCT piston chamber or failed timing valve control solenoid(stuck open). The code P0015 is for Camshaft Position -Timing Over-******** (Bank 1). Your problem will probably be that the timing will be slightly out, due to wear (stretch) of the timing chain; this will all be linked to the overall cold start issue and the timing position. Get that timing checked, or push for the full fix for the cold start timing issue.
Diagnostic Test Code (DTC) P0013 is "Exhaust Cam Position (CMP) Actuator Solenoid Control Circuit" Diagnostic Test Code (DTC) P0014 is "Exhaust Cam Position (CMP) System Performance"
DTC P0014 can be caused by several things that can affect your variable cam timing system performance including using the wrong viscosity engine oil. However, since you have the DTC P0013, it is pretty obvious that the problem is being caused by a circuit malfunction in the control solenoid circuit. It could be as simple as a loose connection at the solenoid electrical connector. It could be that the solenoid itself has an open circuit in its coil windings, or it could even be caused by squirrels or mice chewing on the wiring harnesses in your engine compartment. You must diagnose the circuit to find the cause. Fixing the control solenoid circuit will most likely make both of these codes go away.
The P0014 is a cam phasing code. The phasing system is a hydraulic actuated phase shifting system and is vulnerable to dirty oil. If its been sometime since your last oil change I would recommend that you start with that. The control module turns off the MIL after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
The P1345 could be caused by the P0014. The powertrain control module monitors the correlation between the crank and cam positions and if the deviation between the two exceeds a predetermined amount it will set the code.