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Discussion Starter · #1 ·
Greetings,
I recently purchased a 2009 Volvo S-60 2.5 T, with 96,500 miles, and i should of done better homework on the car! I pull off the valve cover and timing belt cover, only to find that the timing belt has small cracks on the belt and the teeth are crumbling. Then i pull the spark plugs out, i find oil in all of the spark plug chambers, and on the spark plugs themselves. Going from left to right, only the first chamber was saturated in oil up and filled the chamber, whereas the other 4 chambers were dry, and only the plugs were oily.
The tips on all the spark plugs were burnt, ashy, and smelled burnt. The coils had white residue inside of the tips as well .
Is this a death sentence for an engine? I did some reading and it could be a number of things- faulty map sensor, valve seals, head gasket, pcv system , the list goes on and on
What do i do first? How do i go about fixing, and figuring out the issues ? Any advice would be very helpful!
Thank you ,
Emmanuel A
 

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I would
Greetings,
I recently purchased a 2009 Volvo S-60 2.5 T, with 96,500 miles, and i should of done better homework on the car! I pull off the valve cover and timing belt cover, only to find that the timing belt has small cracks on the belt and the teeth are crumbling. Then i pull the spark plugs out, i find oil in all of the spark plug chambers, and on the spark plugs themselves. Going from left to right, only the first chamber was saturated in oil up and filled the chamber, whereas the other 4 chambers were dry, and only the plugs were oily.
The tips on all the spark plugs were burnt, ashy, and smelled burnt. The coils had white residue inside of the tips as well .
Is this a death sentence for an engine? I did some reading and it could be a number of things- faulty map sensor, valve seals, head gasket, pcv system , the list goes on and on
What do i do first? How do i go about fixing, and figuring out the issues ? Any advice would be very helpful!
Thank you ,
Emmanuel A
I would start by using some CRC MAF cleaner to remove as much oil residue from all of the areas. Definitely replace the timing belt. Replace plugs. After the belt, then plugs….motor running, do the glove test on PCV yo give you an idea of the shape it’s in. With the current miles I’d just swap it out though. Might as well change/check air filter as it may be as neglected as other items. And oil change and trans fluid drain and fills.
Now with the new timing belt, new plugs, PCV and all of the oil cleaned up….drive it for a couple days or so check closely for any oil to return in the previous plug wells (I’m assuming these are the “chambers” you are referring to?). You may just have a failing valve cover gasket and plug well seals. The white on the tips or up inside of the coil insulators is normal. Plugs being fouled by oil could be the oil leaking past the threads back into the combustion chamber or oil getting ingested from faulty PCV, bad turbo oil seals or a number of other issues (rings etc) but I would start with the above first. If you aren’t seeing any oil entering the plug wells after awhile then you may want to do a compression test or even better a leak down and get a better picture of the health of the engine. Some of the routine maintenance needs to be done first to try to eliminate the simpler less intrusive possibilities first.
 
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I Don't think you are in that much trouble. I will modify what ^ he said a bit. First the timing belt,tensioner and idler bearing are a must after cleaning up the oil mess.Then replace the serpintine belt and tensioner. That oil mess is likely coming from a failed PCV system. Next up is a fully replaced PCV system with the upgraded Banjo bolts 8653884.While you are in there now is a good time to remove and clean the ETM aka throttle body. At least inspect or replace all the vacuum lines.Replace the plugs with original Volvo ones.Don't use anything else but these! If you do this all at the same time, you will save yourself a bunch of labor. With only 96 on the clock,this should solve your issues.Yes, there will be a lot more to do after that but this should get you going.If everything goes well,then consider things like power steering flush,oil change synthetic,transmission fluid flush,brake fluid flush,coolant change,fuel and air filter.I could go on about more stuff like the brakes and suspension but I think I said enough.
 

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Agree with @chefricky and @paradoxicallymodified
This is a PCV 99.9% the thing which probably led to other issues. One small thing to also add to the list (EASIEST) is to replace the oil filler gasket too.
Is there also oil on the bottom of the motor? Get the car up, remove the splash guard and peek all around. The PCV neglect could have also blown a seal which would need to be replaced too.
The FIRST things to do are timing belt and tensioner to keep the car from destroying itself. Then without running it more and ruining that work you just did, replace the PCV and probably seals and hoses and the banjo bolt. Then new plugs and coils.

Sounds like the car has had zero attention. Stage zero isn't going to be cheap but will be worth it. I just had the latter half of this done on an 02 v70XC with 131K and it's a absolute dream to drive now: Fuel & air filter, transmission flush, brakes and rotors on all four corners, antifreeze flush, oil & filter change, belts, TB and tensioner, new tires, exhaust hangers, PCV and hoses, steering u-joint and now it's 100 times better than a used Honda with a car payment.

An 09 s60 can be a super nice car if rectified. If you can't do some of this, get a VOLVO specialist (not just someone that says they can work on Volvos).
 
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Discussion Starter · #5 ·
Thank you everyone for your input! I have done an oil change to full synthetic a few weeks ago, and i did the glove test like instructed and it sucked in the glove pretty hard, and it has a new air filter as well. There was heavy deposits of oil on the cylinder head, underneath the oil cap area, which i cleaned up as well . Also , the carfax states the car was well maintained and serviced over its lifetime , so that is a bit conflicting.
 
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