PCV Job on a Volvo 2.9 Engine

2.9 Pcv Job1 -

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 want an alternate topic to follow for this PCV on a 2.9, check this out. Otherwise here is the link to this Volvo forum PCV job 2.9. […]

2004 V70 2.5T with 104K miles – Engine Sludge

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 3rd owner. – Car has slight lifter noise (more than my 2005 XC90 2.5T with 115K, which has exactly the same engine), but overall runs fine, good […]

DIY It… Homebrew Seafoam

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 I used but to simplfy it and give you more info: Typical Seafoam application is 473mL Therefore for a 4:2:1 ratio 270 ml Diesel 135 ml Coleman […]

Volvo 5-cylinder Cars With VVT… Exhaust Cam Gear

V40 and S40 (2004+) owners rejoice! Help and advice is here for you while you’re working on your Volvo’s timing belt. This is also applicable to 2000s Volvo 5-cylinder cars with VVT… variable valve timing. MVS member Bruce: The timing mark on the cam gear is really not important once you pull the gear/hub off […]

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 an alarming rate. I am having trouble loosening that last passenger side lower bolt. Any tips other than a universal joint and wobble extension?

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 down from the trap. He tried a coat hanger. Didn’t work. So he used a snake attached to a drill and that worked. Now, if you’re reasonably familiar with Volvo “whiteblock“5-cylinder […]

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, C30’s and some C70’s. This is actually from another site, (Thanks to Syrup from S.S.), but I found it so good I decided to copy it here. […]

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. But first he had to cause the problem. To do that, he did his V70 R’s PCV system and replaced a whole bunch of wear items. The […]

VVIS Install Walkthrough – “Yitsbox”

Interested in the famous VVIS install on your non-turbo 850? MVS super contributor Neil shows us how he did it back in 2012. Availability of this VVIS mod is not certain, let’s start there. Another important fact is that it works on 1993 and 1994 N/A 20-valve 5-cylinder Volvos, unless you want to look at […]

Bought a 1999 S70 GLT with almost 300k Miles

1999 S70 GLT… Where to start? New MVS member shertzog bought a 1999 S70 GLT with almost 300k miles, and he’s been fixing it up: new spark plugs, new coolant tank, new headlight bulbs. Repaired: j-hose. Painted: headlight reflectors. 290,600 miles, white/tan (leather in front seats pretty beat up). new plugs (. – $5/pr Amazon – […]

DIY: Externally adustable air box flap for P80 NA w/pics

Longtime MVS Contributor Dosbricks developed a neat trick to permanently fix stuck airbox flap on non-turbo P80 Volvos like 850, S70 and V70. Many folks have discovered that almost all the thermostats on an NA airbox intake eventually fail in the heated air position choking off the the larger fresh air port. Last fall I decided […]

2001 XC70 J-Hose Replacement Fix w Photos

MVS Contributor Eric aka deepsouth posts a DIY tutorial on replacing the evap J-hose on a 2001 XC-70, including photos: “Recently changed the evap J-Hose on a 2001 Volvo XC70 AWD. I’ve changed evap hoses on all forms of S/V70’s and 850’s but this was a new form of hell. The charcoal canister is above the rear […]

Engine oil cooler line replacement DIY

MVS Forums Contributor Jason (jreed) blasts out a beautiful, detailed, downloadable DIY on replacing oil cooler lines on a Volvo 850. This DIY is likely applicable  for any Volvo P80 model. “The lower cooler line (lower = the one that goes to the lower inlet on the radiator) had developed a very slow leak at the […]