2001 Ford Ranger - Code P0442

Specific repair issues for RWD trucks, SUVs & vans
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Robin at Robs
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2001 Ford Ranger - Code P0442

Post by Robin at Robs »

We have a 2001 Ford Ranger that came in for failied emission. It had a P0442 - evap leak detected. We have repaired the evap hose and reset the monitors Now we have been driving it for 4 days, over 250 miles and we still can not get the evap or the converter monitors to set. We only need 1 more monitor to set so we can go through emissions. If any one has any suggestions as what to do to get them to set we are up for suggetions.
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ricmorin
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Re: 2001 Ford Ranger P0442

Post by ricmorin »

Evap monitors are usually two trip monitors. First the fuel tank must be between 1/4 and 3/4 for it to run. Also, if it's really cold it won't run at all. The cool down period should be at least 12 hours between cycles. This one also does a vapor generation test, which could last 4 trips, so in theory you could be looking at 6 drivecycles. yikes
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Gary R
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Re: 2001 Ford Ranger - Code P0442

Post by Gary R »

According to AllData, the evaporative system monitors will not complete if the outside temperatures are below 40 deg F. I don't know what the weather is like downstate, but in the Chicago area it has been near zero for some time now.

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