Problem with e vac system??

Asked by Nov 02, 2015 at 04:24 PM about the 2002 Subaru Outback

Question type: Maintenance & Repair

my 2002 Outback Wagon : my engine light comes on all the time. My (very reputable mechanic) cannot figure it out. He's gone thru it 5 times and cannot find anything wrong. I cannot pass inspection. The mechanic says it's the E Vac system somewhere. He finally got my light out but says it still won't pass till he gets 1 more off.  He had it to drive for 5 days & still can't find it.  $600.00 to get it that far. He changed all the brake lines. Help!

11 Answers

47,115

I suspect you are having a problem with the EVAP system. Is this correct? Here is a list of possible causes. - Missing or loose fuel cap - Incorrect fuel filler cap used - Fuel filler cap remains open or fails to close - Foreign matter caught in fuel filler cap - EVAP canister or fuel tank leaks - EVAP system hose leaking - Fuel tank leaking

3 out of 3 people think this is helpful.
40,655

Sometimes it is a very good idea to take it to the Dealership. Some independent mechanics, unless they specialize in certain brands, don't have a clue.

1 out of 1 people think this is helpful.
3,530

If CEL indicates EVAP check rear hose, fuel cap, and connection in cargo area to tank.

1 out of 1 people think this is helpful.
47,115

This might help --

1 out of 1 people think this is helpful.

Thankyou for all your help. My mechanic is very good; he just could'nt figure it out. He has the best system money can buy to check & detect leaks. He tried 3 times and at no charge cause they could'nt find it but I needed to pass inspection. As a last resort; he said fill with high octane (most expensive gas) and run bout 80 miles ; bring back. Code came off ; all clear & I passed!!! Go figure.

Full_of_Regrets: What an awesome Evap system all-over view. I'll probably need it for next year!!!! Thankyou for all the help to all who answered. I couldn't imagine all the people you have helped with your very informative nut-cracking ideas!

3,530

Hmmm...usually it's that rear hose connection. EVAP codes should NOT simply clear because of a short term octane bump. Have him check rear line for blockage, separation, or rot in the metal connecting tube. At 13+ winters this happens.

1 out of 1 people think this is helpful.

The SubaruGuruBoston; Thankyou Very Much - I'll have them check that out. Wouldn't that have shown up on the smoke test?

By the way; just to let you all know; the check engine light came back on shortly after it passed AGAIN!!! Frustrating to say the least!

Oops! PS ..As soon as the gas went down to half full (is when the engine light came back on)

3,530

Coincidence. Again, the system requires several faulty events consecutively to retrigger the CEL/cc lights. Get it up on a lift and check out rear plumbing and electrical connector. Then remove cargo stuff and right side wall to check corrosion of metalware. There's probably a leak somewhere.

Your Answer

Add photo

Related Questions

Outback

Looking for a Used Outback in your area?

CarGurus has 600 nationwide Outback listings starting at $3,795.

Postal Code:

Search Subaru Outback Questions

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 5,660
#2 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 1,710
#3 FordNut
FordNut
Reputation 1,490
View All

Related Models For Sale

Used Subaru Forester
74 Great Deals out of 876 listings starting at $2,800
Used Subaru Legacy
16 Great Deals out of 345 listings starting at $598
Used Subaru Impreza
42 Great Deals out of 666 listings starting at $2,995
Used Honda CR-V
35 Great Deals out of 2,181 listings starting at $2,994
Used Toyota RAV4
79 Great Deals out of 2,503 listings starting at $2,490
Used Toyota 4Runner
10 Great Deals out of 344 listings starting at $5,900
Used Toyota Highlander
11 Great Deals out of 533 listings starting at $3,995
Used Honda Accord
78 Great Deals out of 1,044 listings starting at $1,888
Used Toyota Tacoma
16 Great Deals out of 717 listings starting at $4,999
Used Toyota Camry
45 Great Deals out of 1,443 listings starting at $1,699
Used Subaru Impreza WRX
5 Great Deals out of 88 listings starting at $8,995
Used Jeep Grand Cherokee
57 Great Deals out of 3,655 listings starting at $2,950
Used Ford Escape
131 Great Deals out of 3,731 listings starting at $950

Used Cars For Sale

2017 Subaru Outback For Sale
272 listings starting at $28,915
2016 Subaru Outback For Sale
3 Great Deals out of 21 listings starting at $27,634
2015 Subaru Outback For Sale
6 Great Deals out of 41 listings starting at $16,777
2014 Subaru Outback For Sale
45 listings starting at $14,495
2013 Subaru Outback For Sale
6 Great Deals out of 71 listings starting at $10,995