Author Topic: Exhaust fumes in cabin  (Read 798 times)

June 23, 2017, 11:57:34 PM
Read 798 times

Durbanboy

  • Full Member

  • Offline
  • ***

  • 201
    • View Profile
    • Email
Had fumes in the cabin the last month or so. Have checked exhaust, fuel lines, etc.
Fuel consumption is down to 5/km/l.
Any insight is greatly appreciated.
2003 Xec AT
Decat, 57mm SS Cowley freeflow
220l p/h fuel pump
HUCO plug leads
KYB shocks

June 24, 2017, 02:43:49 PM
Reply #1

FozzieDriver

  • Hero Member

  • Offline
  • *****
  • Blue Wasabi

  • 900
    • View Profile
    • Email

How did you check the exhaust? Did you take the heat shields off?
Something in the engine bay is leaking
Is your water level ok?


Sent from my iPhone using Tapatalk
Forester XT 2008 MT
VF48, STi IC, 76mm Bell mouth TNT Free flow, GFB EBC, Coolboost WMI, WHP built and Chett Tuned. Blue Wasabi V3.0

June 26, 2017, 10:05:50 AM
Reply #2

Dene

  • Sr. Member

  • Offline
  • ****

  • 427
  • Personal Text
    Just do it.
    • View Profile
    • Email
With the consumption worsening it could be a leak or that the car is over fueling ..... ?

June 26, 2017, 01:50:50 PM
Reply #3

LoopSoosStroop

  • Hero Member

  • Offline
  • *****

  • 987
    • View Profile
I had a similar experience when my centre exhaust box, the flat one right under the car, split along the seams. Fumes finding it's way in somewhere (?!), and fuel consumption worse, but not as bad as yours.
2007 XT AT
Midrand - Gauteng

June 26, 2017, 05:15:11 PM
Reply #4

Durbanboy

  • Full Member

  • Offline
  • ***

  • 201
    • View Profile
    • Email
Checked again. Going to replace 220/l/h fuel pump with original tomorrow.
Going to remove complete exhaust system and inspect it.
Going through the Forester manual shows many other scenarios. I'm hoping it's something simple.
She only has 306K km on the clock ;)
2003 Xec AT
Decat, 57mm SS Cowley freeflow
220l p/h fuel pump
HUCO plug leads
KYB shocks

June 26, 2017, 05:16:32 PM
Reply #5

Durbanboy

  • Full Member

  • Offline
  • ***

  • 201
    • View Profile
    • Email

How did you check the exhaust? Did you take the heat shields off?
Something in the engine bay is leaking
Is your water level ok?


Sent from my iPhone using Tapatalk

Water level is fine. I removed the heat shields.
2003 Xec AT
Decat, 57mm SS Cowley freeflow
220l p/h fuel pump
HUCO plug leads
KYB shocks

June 26, 2017, 05:18:47 PM
Reply #6

Durbanboy

  • Full Member

  • Offline
  • ***

  • 201
    • View Profile
    • Email
I had a similar experience when my centre exhaust box, the flat one right under the car, split along the seams. Fumes finding it's way in somewhere (?!), and fuel consumption worse, but not as bad as yours.

Exhaust system is under 2 years old. S/S Cowley system, but after the first cat removal I have my doubts about their welding, etc.
2003 Xec AT
Decat, 57mm SS Cowley freeflow
220l p/h fuel pump
HUCO plug leads
KYB shocks

August 19, 2017, 01:00:22 AM
Reply #7

Durbanboy

  • Full Member

  • Offline
  • ***

  • 201
    • View Profile
    • Email
Found this little bugger unattached. Fumes are gone but still yard-glassing fuel!

[attachment deleted by admin]
2003 Xec AT
Decat, 57mm SS Cowley freeflow
220l p/h fuel pump
HUCO plug leads
KYB shocks

August 20, 2017, 06:20:36 PM
Reply #8

berndp

  • Hero Member

  • Offline
  • *****

  • 1137
    • View Profile
    • Email
That's just a breather for the crankcase. You should not get any exhaust fumes from that.
Subaru Forester 2005 2.5 Xsel
Always looking for a tar free "road"
Brackenfell, W'Cape

August 24, 2017, 09:57:38 PM
Reply #9

Durbanboy

  • Full Member

  • Offline
  • ***

  • 201
    • View Profile
    • Email
That's just a breather for the crankcase. You should not get any exhaust fumes from that.
Maybe I have a bad nasal cavity. Dunno. No more fumes
2003 Xec AT
Decat, 57mm SS Cowley freeflow
220l p/h fuel pump
HUCO plug leads
KYB shocks