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The code insinuates that your purge valve has problems and probably needs to be replaced. Rather difficult to explain the repair but I did manage to find what you need to do on video.
The P0496 DTC code is a generic code which applies to all vehicle makes. A quick search on the 'net shows that this code seems to be more common with GM
your evaporative emission canistor solenoid purge valve is either stuck open or shut and needs to be replaced-auto zone pep boys or advanced auto can hook up diagnostic and confirm for free-cheers Denny
DTC P0496 - EVAPORATIVE EMISSION (EVAP) SYSTEM FLOW DURING NON-PURGE
SYSTEM DESCRIPTION This DTC tests for undesired intake manifold vacuum flow to the evaporative emission (EVAP) system. The control module seals the EVAP system by commanding the EVAP canister purge valve Closed and the EVAP canister vent valve Closed. The control module monitors the fuel tank pressure (FTP) sensor to determine if a vacuum is being drawn on the EVAP system. If vacuum in the EVAP system is more than a predetermined value within a predetermined time, this DTC sets.
i have a 2006 cadillac cts and when i get gas it dont wont to start ,,i haft to keep trying to start it but when it does ,,it runs like a new one ,, help please,,
Unfortunately not. This vehicle has a very sophisticated CPU and the old age tricks will not work on this particular design. You will need to gain access and allow a professional GM tech to pull the Cadillac codes. An ordinary code reader may miss the exclusive Cadillac codes that may be stored at any given time.
A certified GM/Cadillac code reader will be your best bet..
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