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  #1  
Old 08-31-2010, 07:24 PM
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Default P0442 Small Evap Leak

So this minor code shows me the check engine sign, but doesnt show a meesage in the window to the left of the speedo.

i say this code is minor because my performance and mileage is still the same

From the quick reading i have done this code has something do to with the Evap recirculation system, where fuel vapours are routed via a valve from from the manifold (?) to some vapour storage box and back to the intake

Just wondering if anyone has any clues on this for me to check out?

CAR: 99 S80 T6, all maintenance up to date, no recent work done so this code just kinda came out of nowhere...thanks
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1999 Volvo S80 T6 Bought @192KM...now @226KM and counting the high priced maintenance miles ;-)
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Old 08-31-2010, 07:52 PM
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P0442

Possible Source
leaking fuel tank, filler pipe, fuel tank filler cap, EVAP canister, EVAP canister shut-off valve or lines between these components


Check the gas cap and gasket 1st.
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  #3  
Old 08-31-2010, 08:08 PM
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I looked at the lines between the cooling fan and the intake, all seem connected, i could not really find anything under the car, but its hard to get in there without jacking it up

how do i check the gas cap ? it clicks when i close it, and what gasket are you referring to ?
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  #4  
Old 08-31-2010, 09:59 PM
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Im having the same problem
cant find solution
any more suggestion?
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Old 09-01-2010, 07:13 AM
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There is a black gasket in the gas cap that you can see cracking. You may be eligible for the EMS extended warranty, ecm upgrade at no charge, call dealer.
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Old 09-01-2010, 08:47 PM
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gasket is fine
any other ideas?
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Old 09-01-2010, 09:00 PM
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warranty i belive is only 10 years 100,000 mile ext. warranty on that.
but i may be wrong. if u have a major leak its most likely tha gas cap.
theres many diff. things it could be a sticking evap valve a torn hose in the evap system. many little things. u will need to know what codes u have
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  #8  
Old 09-02-2010, 07:23 AM
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EMS ?

ECM software upgrade is already done

need2fix: Please look at my original post and title of the thread,. the code and what it means is P0442 Small evap leak, dont think its gas cap cause i dont smell gas around it, but im sure the gasket is cheap so ill buy it on the weekend

im out of ideas...
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  #9  
Old 09-06-2010, 11:35 PM
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well, its not the gas cap
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Old 09-06-2010, 11:35 PM
 
 
 
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Tags
2001, 99, code, engine, evap, evaporator, leak, p0442, po442, s80, s80t6, small, t6, v70, volvo, xc70


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