1999 Ford Explorer codes

1999 FORD EXPLORER
10,600 MILES • 6 CYL • 4WD • AUTOMATIC
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SKAUFFMAN
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while smog checking our Explorer, the codes 442, 172 and 175 came up. Where do I find what they mean

okay so p0172 and p0175 are evap leaks, where could they be located?

I replaced the gas cap and noticed a crack on the metal hole that the gas cap fits on. could that possibly cause the leak
Jun 26, 2008 at 11:59 PM
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BMRFIXIT
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You can check the site menu under diagnostic trouble codes all codes start with P
p0442 check gas cap and evap system for small leak
p0172and p0175 system rich bank one and bank two
Jun 27, 2008 at 5:32 AM