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Suction/whistling sound s40 T5 cam cover

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40
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starliner
Posts: 2
Joined: 25 September 2006
Year and Model:
Location: South Africa

Suction/whistling sound s40 T5 cam cover

Post by starliner »

My 2005 S40 T5 has suddenly developed a whistling sound from the cam cover area which goes away when the oilcap is removed. There is serious suction into the cam cover and the eco light is on. I guess this car has a closed breather system and one of the vent valves is stuck? Any thoughts welcomed. Gary
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starliner
Posts: 2
Joined: 25 September 2006
Year and Model:
Location: South Africa

Post by starliner »

by eco light I mean lambda light
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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 »

Suction is good...if it was blowing out that would be bad. Try getting a new rubber gasket for your oil fill cap.
'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
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