Login Register

v70 back pressure

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Post Reply
Darrin

v70 back pressure

Post by Darrin »

1997 v70 2.5 10v. 155000 miles fsh. after a 10 mile journey i could smell burning oil. It was coming from oil filler cap. there was a lot of pressure when i removed it. Prior to this i,ve had no loss or use of oil and it drives perfectly well no loss of power or misfiring.Do you think it could be a blocked breather?.I,ve been looking through haynes manual and was toying with replacing oil seperator and flame trap.Does it sound more terminal?. Any help greatly appreciated.

White850Turbo
Posts: 923
Joined: 11 April 2004
Year and Model:
Location: Plano, TX

Post by White850Turbo »

That's a typical symptom associated with a clogged oil trap. Make sure you buy a new one; they're only about $30 USD. If you're a weekend mechanic and it's your first time doing the job, I'd allow 4 to 5 hours for it.
-Sean

1995 850 Turbo (Extensively Modded)

1998 S70 T5 (Almost Stock)

MadeInJapan
MVS Moderator
Posts: 13434
Joined: 31 March 2005
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
Has thanked: 17 times
Been thanked: 35 times

Post by MadeInJapan »

If that doesn't do it, then it's a pcv hoses cleaning or replacement. www.fcpgroton.com has them. Just call them about the "pcv kit" for your car.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

Post Reply
  • Similar Topics
    Replies
    Views
    Last post