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#1
08-18-2008, 10:12 PM
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4.2L I6 oil leak from valve cover into plug holes
While changing the plugs in my '03 XL, I noticed the threads were wet with oil and wondered where it could be coming from. I discovered that the valve cover seals around each hole was leaking, allowing oil to drip down into each plug hole. But I am dismayed that the repair manual says that I have to discharge my A/C system and remove the one big pipe that crosses over the cover in order to remove it to replace the gasket. The question is: Is discharging really necessary or can I wriggle it out? Could I just loosen the pipe and move it while keeping the system tight? Anyone had experience with this? Any info would be great...thanks!
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Current Garage: 2009 Honda CR-V EX 2006 Mazda 3i 2004 Chevrolet Silverado 2500HD 2003 GMC Envoy XL 2000 Honda ST1100 2000 Pontiac Sunfire Vehicle History: 2003 Pontiac Vibe AWD - 1999 Acura Integra GS - 2004 4.7L Dakota Quad Cab 4x4 - 1996 GMC Jimmy 4wd - 1995 Chevrolet C2500 - 1992 Toyota Camry LE 2.2L - 1992 Chevrolet S10 Ext. Cab 4.3L - 1995 Honda ST1100 - 1980 Yamaha XS400 - 1980 Mercury Bobcat. 
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#2
09-13-2008, 09:33 PM
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Re: 4.2L I6 oil leak from valve cover into plug holes
hey you can move the a/c line out of the way in the front without having to evacuate the refridgerant. you are also supposed to remove the intake but on the 4.2 you can just remove the throttle body and pry the intake out of the way to remove the rocker cover. be careful its all only plastic.
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