P0442 Code

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HrseyCar - 25 Jul 2005 13:01 GMT

My 1998 Explorer V-8 AWD has a code of P0442 - Evaporative Emission
Control System Leak Detected (Small Leak). I tried changing the gas cap
but still get the same code.
From what I'ved read, it could be a tiny pin hole in a line or the
canister is failing. Where is the evaporator canister located? If the
hole could be that small, how can it be located?
Any other ideas to what the problem is?

Thanks.
Rob

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Jim Warman - 26 Jul 2005 02:16 GMT

Could be cannister, lines, the tank, purge solenoid, vent solenoid... even
that shiney new cap.... Cannister is located underneath the car with a
favourite place on RWD and 4X4 being above the rear axle.

In the shop, we would use a smoke generator to charge the system with -
well... smoke. A scan tool capable of active ommand mode is used to close
the vent solenoid and the system is checked for signs of smoke getting out.
A handheld halogen spotlight helps show small wisps.

HTH

> My 1998 Explorer V-8 AWD has a code of P0442 - Evaporative Emission
> Control System Leak Detected (Small Leak). I tried changing the gas cap
[quoted text clipped - 6 lines]
> Thanks.
> Rob

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