Need help with code P0839 (Four Wheel Drive (4WD) Switch Circuit High)

RatJesus

New Member
Original poster
Joined
Mar 9, 2024
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2
Location
Centennial Colorado
So I have a 2006 TJ Rubicon with about 159,600 miles and basically as it hit 159,600 miles my check engine light came on giving off the codes P0441 and P0839. Im not exactly concerned about P0441 since it seems not to be too immediately detrimental right now but P0839 seems quite important considering it relates to more expensive parts haha. So, what im really asking here is if anyone here has any experience with it or in general what I should do. Something that is odd is that it engages in and 4WD just fine, the lights not on but the light never really worked to begin with. (Sorry if this is a super dumb question im pretty new to this whole thing)
 
P0441 is Evaporative Emissions System Incorrect Purge Flow; that code is most commonly thrown due cracked, loose or broken line/fitting in the engine compartment, charcoal canister or at the gas tank/gas cap and a Purge Valve solenoid that is not functioning properly.