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

40,975

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.
35,295

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.
3,270

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.
40,975

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!

3,270

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)

3,270

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 26,497 nationwide Outback listings starting at $1,000.

ZIP:

Search Subaru Outback Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 5,270
#2 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 1,600
#3 FordNut
FordNut
Reputation 1,490
View All

Related Models For Sale

Used Subaru Forester
297 Great Deals out of 22,204 listings starting at $1,290
Used Subaru Impreza
179 Great Deals out of 11,186 listings starting at $1,899
Used Subaru Legacy
216 Great Deals out of 15,151 listings starting at $950
Used Honda CR-V
894 Great Deals out of 63,713 listings starting at $1,495
Used Toyota RAV4
760 Great Deals out of 56,009 listings starting at $2,488
Used Toyota 4Runner
378 Great Deals out of 20,969 listings starting at $2,495
Used Toyota Highlander
586 Great Deals out of 23,103 listings starting at $2,944
Used Toyota Tacoma
721 Great Deals out of 32,217 listings starting at $2,750
Used Jeep Grand Cherokee
922 Great Deals out of 66,784 listings starting at $1,500
Used Honda Accord
1,011 Great Deals out of 75,624 listings starting at $899
Used Subaru Impreza WRX
49 Great Deals out of 1,136 listings starting at $1,500
Used Honda Pilot
500 Great Deals out of 18,520 listings starting at $950
Used Toyota Camry
1,232 Great Deals out of 97,263 listings starting at $1,250

Used Cars For Sale

2017 Subaru Outback For Sale
17,969 listings starting at $23,920
2016 Subaru Outback For Sale
43 Great Deals out of 984 listings starting at $20,995
2015 Subaru Outback For Sale
82 Great Deals out of 1,193 listings starting at $15,000
2014 Subaru Outback For Sale
56 Great Deals out of 1,435 listings starting at $9,995
2013 Subaru Outback For Sale
44 Great Deals out of 1,007 listings starting at $9,770