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

56,765

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.
44,655

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.
3,980

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.
56,765

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!

3,980

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)

3,980

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 573 nationwide Outback listings starting at $3,495.

Postal Code:

Search Subaru Outback Questions

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 6,300
#2 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 1,880
#3 F_O_R
F_O_R
Reputation 1,480
View All

Related Models For Sale

Used Subaru Forester
71 Great Deals out of 803 listings starting at $2,800
Used Subaru Impreza
40 Great Deals out of 742 listings starting at $2,449
Used Subaru Legacy
11 Great Deals out of 399 listings starting at $2,490
Used Honda CR-V
57 Great Deals out of 2,237 listings starting at $1,570
Used Toyota RAV4
114 Great Deals out of 3,206 listings starting at $2,995
Used Toyota Highlander
11 Great Deals out of 570 listings starting at $3,995
Used Toyota 4Runner
4 Great Deals out of 380 listings starting at $5,995
Used Honda Accord
92 Great Deals out of 1,165 listings starting at $1,495
Used Toyota Tacoma
22 Great Deals out of 745 listings starting at $4,999
Used Jeep Grand Cherokee
83 Great Deals out of 3,484 listings starting at $1,488
Used Subaru Impreza WRX
98 listings starting at $8,994
Used Honda Pilot
4 Great Deals out of 429 listings starting at $3,300
Used Toyota Camry
49 Great Deals out of 1,515 listings starting at $800

Used Cars For Sale

2017 Subaru Outback For Sale
262 listings starting at $27,995
2016 Subaru Outback For Sale
13 listings starting at $26,498
2015 Subaru Outback For Sale
9 Great Deals out of 57 listings starting at $18,900
2014 Subaru Outback For Sale
51 listings starting at $14,495
2013 Subaru Outback For Sale
4 Great Deals out of 66 listings starting at $11,990