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RESOURCES: Large Evaporative Emissions Leak 1998 V70 non-turbo

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
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1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
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Eddystone
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Eddystone

RESOURCES: Large Evaporative Emissions Leak 1998 V70 non-turbo

Post by Eddystone » Fri Jul 19, 2019 6:16 pm

I could use some ideas, here. I have code for a large leak in the evaporative emissions system which I am having a bear of a time troubleshooting. Various years and (perhaps) body types have completely different systems. My car has the one where there is a canister in the left front fender behind the inner fender liner. I have had that apart and replaced the hose and checked that area rout pretty thoroughly. I have a couple of the three-inch hoses with different diameters on each end, although I will admit that I am not even sure there should be one on my car.

I have a home-made smoke tester that will push smoke through a line and show where leaks may be, but I am not sure where to hook it up considering all of the valves and solenoids and other mysterious components.

If anyone can give me SPECIFIC information about the system in my 1998 Non-Turbo V70, I would GREATLY appreciate the help. (For example, my system does not have the infamous J-hose...) Of course, this doesn't affect the operation of the car, but the check engine light is on at all times, and I'd like to have it be NORMALLY off so that I get a warning when a real problem pops up.

EDIT: Listed some resources I found after posting this which may make it easier for others to work on this. Heat Index where I live is 108 degrees today, so I'm not out under the car, but I was out there for hours yesterday doing other things in preparation for a long vacation trip to Maine. Car recently went from Philly to Indianapolis and back flawlessly. Not much power in the non-turbo, but it's a tight car that runs well.
Last edited by Eddystone on Sat Jul 20, 2019 4:59 pm, edited 3 times in total.


1998 V70 Non-Turbo/Auto
1993 945 Turbo/Auto
1999 S70 T5 Turbo/Auto
All U.S. market models.
All on the road and running.
PM me if you are near Philadelphia.
;-)

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Eddystone
Posts: 234
Joined: Mon Jan 20, 2014 4:30 pm
Year and Model: 1967 Ford GT40 Mk IV
Location: Philadelphia Metro Area
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Eddystone

Re: Large Evaporative Emissions Leak 1998 V70 non-turbo

Post by Eddystone » Fri Jul 19, 2019 6:23 pm

Reading this, but need specific diagram:

viewtopic.php?t=57952


1998 V70 Non-Turbo/Auto
1993 945 Turbo/Auto
1999 S70 T5 Turbo/Auto
All U.S. market models.
All on the road and running.
PM me if you are near Philadelphia.
;-)

User avatar
Eddystone
Posts: 234
Joined: Mon Jan 20, 2014 4:30 pm
Year and Model: 1967 Ford GT40 Mk IV
Location: Philadelphia Metro Area
Has thanked: 11 times
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Eddystone

Re: Large Evaporative Emissions Leak 1998 V70 non-turbo

Post by Eddystone » Fri Jul 19, 2019 6:27 pm



1998 V70 Non-Turbo/Auto
1993 945 Turbo/Auto
1999 S70 T5 Turbo/Auto
All U.S. market models.
All on the road and running.
PM me if you are near Philadelphia.
;-)

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jreed
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jreed

Re: Large Evaporative Emissions Leak 1998 V70 non-turbo

Post by jreed » Sat Jul 20, 2019 5:34 am

I have a '97 855 light pressure turbo wagon so this may not apply to your situation, but I also have the charcoal canister in the left front fender so there may be some similarities. Here are the other parts of my car besides the charcoal canister hoses that have failed and caused an evap code:
the evap purge valve mounted on the left side of the radiator
the rubber tubes connecting to the roll-over valve near the fuel filter

Good luck!
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Eddystone


1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94

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kranz
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kranz

Re: Large Evaporative Emissions Leak 1998 V70 non-turbo

Post by kranz » Sat Jul 20, 2019 6:26 am

I have a 98 V70 NA and found the rubber connections around the rollover valve had rotted and needed replacement. As jreed mentioned there is an evap purge valve mounted on the radiator and connected to the vacuum tree by the manifold. I've had to replace the rubber and tubing there multiple times.

I now have a senior exemption from the annual emissions test as long as I keep the mileage under 5K so I've felt no urgency to fix one of these when it shows up. I guess there are some advantages to old age.
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Eddystone


Les is more.

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Eddystone
Posts: 234
Joined: Mon Jan 20, 2014 4:30 pm
Year and Model: 1967 Ford GT40 Mk IV
Location: Philadelphia Metro Area
Has thanked: 11 times
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Eddystone

Re: Large Evaporative Emissions Leak 1998 V70 non-turbo

Post by Eddystone » Sat Jul 20, 2019 12:24 pm

Robert's YouTube video dealing with evaporative emissions leaks:


1998 V70 Non-Turbo/Auto
1993 945 Turbo/Auto
1999 S70 T5 Turbo/Auto
All U.S. market models.
All on the road and running.
PM me if you are near Philadelphia.
;-)

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