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2001 S40 has the check engine light on

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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DPatNeely
Posts: 7
Joined: 7 February 2009
Year and Model: 2001 S40
Location: Colorado Springs

Re: 2001 S40 has the check engine light on

Post by DPatNeely »

I have checked for an intake leak but none can be found (a whole can of carb cleaner later) however the PCV system has an issue that i wonder if it may be tied into my problem. Oil is blowing from the dip stick (under hard accelaration) doesn't that indicate PVC problems? Could this be related? How do I clean the PCV system on the S40? As I understand there is not a PCV valve as in other cars.
Thanks for the help.

MadeInJapan
MVS Moderator
Posts: 13434
Joined: 31 March 2005
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
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Post by MadeInJapan »

Yes, you need to deal with the PCV.
I don't recall if this has been asked already, but how are your spark plugs? Are the gapped correctly? Not sure which ones are for your car but your owner's manual will tell you.
'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

DPatNeely
Posts: 7
Joined: 7 February 2009
Year and Model: 2001 S40
Location: Colorado Springs

Post by DPatNeely »

The plugs were the original plugs from Volvo and shot. I replaced the plugs and the light went out and has not come back on. The turbo is now working properly and all is good. Thanks for the help it was BRILIANT.

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