p0442 evap leak

2004 CHEVROLET CAVALIER
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VSTEADY
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  • 2 POSTS
code p0442 every 2 days engine light comes on evap small leak detected have checked some lines but code keeps coming back evap pcode p0442 every 2 days engine light comes on evap small leak detected have checked some lines but code keeps coming back evap purge code p0442 every 2 days engine light comes on evap small leak detected have checked some lines but code keeps coming back evap purge
May 25, 2013 at 12:12 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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DOCFIXIT
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Small leaks can be troublesome MIL will reset after 40 warm up cycles so MIL goes out in 40 warmups back on again.
The way to find and repair is to have an EVAP smoke test done this will ID leak
May 25, 2013 at 12:25 PM
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VSTEADY
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ty but ive never heard of smoke test cam it be done easily
May 31, 2013 at 5:11 AM
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DOCFIXIT
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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Very common test dealer can do and most repair shops have equipment
May 31, 2013 at 6:01 AM