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J-Hose Repair Tutorial w/ pics (EVAP Emission Hose)

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

This topic is in the MVS Volvo Repair Database » J Hose Repair Tutorial w/ pics -- EVAP Emission Hose
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enotslim
Posts: 333
Joined: 18 January 2016
Year and Model: 2004 XC70
Location: Boston, MA USA
Has thanked: 71 times
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Re: J-Hose Repair Tutorial w/ pics (EVAP Emission Hose)

Post by enotslim »

I copy/pasted the vin from a repair invoice from an independent mechanic I've used a lot. It might be wrong but I don't think so. I guess I should use it successfully somewhere though. I read it to the dealer over the phone and they found parts with it. I don't see an obvious explanation.
Now:
2004 XC70
Then:
1972 144
1988 240 Wagon
1998 V70 T5

enotslim
Posts: 333
Joined: 18 January 2016
Year and Model: 2004 XC70
Location: Boston, MA USA
Has thanked: 71 times
Been thanked: 16 times

Post by enotslim »

Some follow up - fcp verified that their web site description of the "L" hose part 9443309 is incorrect. The description says it runs from the shut off valve to the evap canister, when in fact they confirmed by phone that it runs from the shutoff valve to a connection farther to the rear as shown in the image I posted previously in this thread. Still don't have a diagram but don't really need it now. Today I replaced this and the J hose (9443308) from fcp. Maybe it's just me but the J hose was a piece of cake compared to the L hose. Access to remove the rear L hose clamp was very difficult for me, removal taking as long as the entire rest of the job for both hoses combined. Other than that I found these hoses were pretty easy repairs by following the op's instructions in this thread - thanks kickin-it!!! Hopefully this will resolve my P0442 trouble code. While these hoses were both severely cracked I realize other leaks may now declare themselves.
Now:
2004 XC70
Then:
1972 144
1988 240 Wagon
1998 V70 T5

enotslim
Posts: 333
Joined: 18 January 2016
Year and Model: 2004 XC70
Location: Boston, MA USA
Has thanked: 71 times
Been thanked: 16 times

Post by enotslim »

Current question: Will the "OEM" fuel caps from places like FCPEuro, IPD, etc. (~$30) seal well enough or are the dealer supplied caps (~$70) necessary? See below for reason.

After replacing the J and L hoses I now have a "P0442 Evaporative Emission System Leak Detected (small leak)". It seems the possibilities are I didn't get the hoses on quite right, I damaged something else while installing the hoses causing a leak somewhere else, or there was a small leak all along that wasn't detected previously because I already had a "large leak".

I replaced the hoses first even though a fuel cap is much easier because the hoses clearly were grossly cracked. I have since cleaned the fuel cap gasket and removed scratches from the mating surface on the filler neck but the small leak persists. I think next step is replacing the fuel cap. Will the "OEM" fuel caps from places like FCPEuro, IPD, etc. (~$30) seal well enough or are the dealer supplied caps (~$70) necessary? Hopefully, I won't need to go further such as a smoke test. It seems like these hoses and the fuel cap are the most straight forward to address.
Now:
2004 XC70
Then:
1972 144
1988 240 Wagon
1998 V70 T5

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