Category: Engine Breathing – MAF, PCV, EGR, Etc.

Exhaust Gas Recirculation (EGR), Postive Crankcase Ventilation (PCV), Idle Air Control Valve (IAC), and their related components that perform ventilation duties on our Volvo engines

Volvo PCV System Repair: a DIY guide

If your ride is suddenly getting less fuel economy, misfiring, or you get a CEL, it may be time for a Volvo PCV system repair. Volvo PCV System…

Post categories In Engine Breathing - MAF, PCV, EGR, Etc.

Due for a Volvo PCV Job?

A Volvo PCV job is a pretty manageable project for the typical do-it-yourselfer. Learn more here about how to do one, how long it might take, parts you…

Post categories In Volvo 850, Volvo S70 & V70 1998-2000, Engine, Volvo Emissions and Fuel Economy, Volvo XC70 & V70XC, Engine Breathing - MAF, PCV, EGR, Etc., Volvo C70, Volvo V70 R 1998-2000

Long Crank on a 1998 — Diagnosing FPR & Vacuum Lines

shegarty writes » I’ve been chasing a hard start at temperatures below -15ºC on my 98 S70 for a couple of years now. I believe that I have…

Post categories In Engine Breathing - MAF, PCV, EGR, Etc., Fuel, Gasoline, Fuel Filter, Injectors, Etc.

’99 S70 Non Turbo Vacuum & Related Lines – Different Version

MVS Contributor Electrix details the differences between his unusual N/A 1999 S70, and the standard N/A S70 » First, this thread – 850 and S/V/C70 non-turbo vacuum lines covers…

Post categories In Volvo S70 & V70 1998-2000, Engine Breathing - MAF, PCV, EGR, Etc.

MVS Contributor SuperHerman steps us through a PCV job on a Volvo 2.9 liter 6-cylinder. This applies generally to either B6294x or B6304x family. This engine powers over a million S80 and XC90 Volvos. If you…

Post categories In Volvo S80, Volvo XC90, Engine Breathing - MAF, PCV, EGR, Etc., Volvo S90

2004 V70 2.5T with 104K miles – Engine Sludge

cn90 » The car is 2004 V70 2.5T with 104K miles. All maintenance up-to-date (Timing Belt at 95K, PCV etc.). Car was serviced exclusively at Volvo dealer. I am the…

Post categories In Engine, Engine Breathing - MAF, PCV, EGR, Etc.

DIY Homebrew Seafoam

MVS Contributor Mecheng posts how to make your own formula to approximate DIY Seafoam. You can make Seafoam treatment much cheaper than buying it. This is the reference…

Post categories In Engine, Engine Breathing - MAF, PCV, EGR, Etc., Speed, Aftermarket & HP, Volvo Parts, Accessories, & Saving Money

Volvo 5 cylinder Cars With VVT… Exhaust Cam Gear

Let’s talk about Volvo 5-cylinder Cars V40 and S40 (2004+) owners rejoice! Help and advice is here for you while you’re working on your Volvo’s timing belt. This…

Post categories In Volvo S40 & V40, Volvo V50, Volvo S60, Volvo S80, Engine, Volvo XC70 & V70XC, Engine Breathing - MAF, PCV, EGR, Etc., Volvo C70, Volvo V70 R 2004-2007, Volvo S60 R 2004-2007, Volvo V70 2001-2007

How to Remove Intake Manifold

How to get the intake manfold off? New MVS member Skkele: I’m doing a PCV replacement on my P2 V70 at 62k miles, it started consuming oil at…

Post categories In Volvo S60, Volvo XC90, Engine, Volvo XC70 & V70XC, Engine Breathing - MAF, PCV, EGR, Etc., Volvo V70 R 2004-2007, Volvo S60 R 2004-2007, Volvo V70 2001-2007, Gaskets & Related Pieces

S80 Oil Trap and Port Cleaning Tips

MVS (now) Contributor John (johnljoseph) took a day to clean and Stage 0 his S80’s B5254T2 engine. Things went well until he got to cleaning the oil drain…

Post categories In Volvo S80, Engine Breathing - MAF, PCV, EGR, Etc.

Throttle Body Clean DIY – Volvo S40/V50, C30, C70

Throttle Body Cleaning for P1 vehicles- S40/V50, C30’s and some C70’s MVS Forums Moderator Made In Japan details how to clean the throttle body of P1 vehicles- S40/V50,…

Post categories In Volvo V50, Engine Breathing - MAF, PCV, EGR, Etc., Volvo C70, Volvo C30, Volvo Repair Documentation

1999 Volvo V70 R dipstick pushing up

Dipstick pushing up, but the PCV has already been done. Dan McBoost fixed a very common Volvo P80 and P2 problem: pressure in oil pan pushes dipstick out.…

Post categories In Volvo 850, Volvo S70 & V70 1998-2000, Volvo XC70 & V70XC, Engine Breathing - MAF, PCV, EGR, Etc., Volvo V70 R 2004-2007, Volvo V70 R 1998-2000, Volvo Engine Oil, Return Line, etc.