P0442 OBDII DTC - again - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**jocko** · 06-09-2010, 08:52 PM

Good evening folks - normally hang out on the 60-66 pages herein, but also drive a 2001 Z71. Have the dreaded recurring P0442 with check eng light MIL. Gas cap and seal appears to be fine - all lines to/from canister seem fine - are there any threads on here that hav discussed the most likely fixes of this nuisance code? I've got an Actron scanner - check the code every time it pops and reset it, but it sure is getting old. Appreciate your help.
Jocko

06-09-2010, 08:52 PM	#1
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,940	P0442 OBDII DTC - again Good evening folks - normally hang out on the 60-66 pages herein, but also drive a 2001 Z71. Have the dreaded recurring P0442 with check eng light MIL. Gas cap and seal appears to be fine - all lines to/from canister seem fine - are there any threads on here that hav discussed the most likely fixes of this nuisance code? I've got an Actron scanner - check the code every time it pops and reset it, but it sure is getting old. Appreciate your help. Jocko



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.