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

46,405

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.
39,855

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.
3,500

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.
46,405

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!

3,500

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)

3,500

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 29,744 nationwide Outback listings starting at $1,200.

ZIP:

Search Subaru Outback Questions

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 5,580
#2 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 1,690
#3 FordNut
FordNut
Reputation 1,490
View All

Related Models For Sale

Used Subaru Forester
255 Great Deals out of 22,781 listings starting at $1,499
Used Subaru Legacy
207 Great Deals out of 16,085 listings starting at $1,300
Used Subaru Impreza
176 Great Deals out of 13,339 listings starting at $1,817
Used Honda CR-V
814 Great Deals out of 59,369 listings starting at $1,200
Used Toyota RAV4
645 Great Deals out of 61,987 listings starting at $2,450
Used Toyota 4Runner
319 Great Deals out of 20,550 listings starting at $2,295
Used Toyota Highlander
482 Great Deals out of 25,071 listings starting at $1,500
Used Honda Accord
811 Great Deals out of 81,609 listings starting at $899
Used Toyota Camry
1,103 Great Deals out of 96,275 listings starting at $1,250
Used Toyota Tacoma
620 Great Deals out of 35,105 listings starting at $2,155
Used Subaru Impreza WRX
38 Great Deals out of 1,140 listings starting at $1,500
Used Jeep Grand Cherokee
846 Great Deals out of 68,675 listings starting at $864
Used Ford Escape
1,119 Great Deals out of 90,571 listings starting at $1,295

Used Cars For Sale

2017 Subaru Outback For Sale
18 Great Deals out of 21,569 listings starting at $23,920
2016 Subaru Outback For Sale
48 Great Deals out of 988 listings starting at $19,924
2015 Subaru Outback For Sale
64 Great Deals out of 1,224 listings starting at $13,990
2014 Subaru Outback For Sale
58 Great Deals out of 1,438 listings starting at $11,500
2013 Subaru Outback For Sale
33 Great Deals out of 944 listings starting at $8,995