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Old 01-18-2017, 05:38 AM   #1
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Brand: Thor Motor Coach
Model: Majestic
State: Florida
Posts: 17
THOR #5852
Check engine error code PO442

I have a 2012 Thor Majestic with a Ford E-350 Super Duty engine. I got a check engine light and hooked up my code reader to see what it would find. It was a PO442 error which is a small leak in the 'EVAP system. My question is: Does anyone know where the EVAP solenoid is located on this engine?

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Old 01-18-2017, 11:49 AM   #2
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Brand: Crossroads
Model: CF32BL
State: Mississippi
Posts: 1,030
THOR #121
Could also be a loose gas cap, or if you left the motor running while filling it up,it would cause the code to show up. I would clear the code, and than if it came back I would look else where
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Old 01-18-2017, 04:50 PM   #3
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Brand: Thor Motor Coach
Model: Majestic
State: Florida
Posts: 17
THOR #5852
I did check the gas cap. It was on to the point of clicking. Do you think a gas cap can go bad? I didn't put gas in with the engine running. I did clear the code. I probably won't be driving it for at least a month, I just got back from a camping trip.
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