Engine System Service Urgent

rphelan · Post by **rphelan** » 27 Mar 2019, 18:37

I have a 07 Vovlo s60 2.5T with 178,000 miles. The message popped up 3 days ago.

Current problem is lack of acceleration when pressing the gas pedal. This has happened 3 times in the last 3 days since the message came up. Other times the car seems to be driving well.
6 weeks ago the car "bucked" twice over a number of days. Once while going around a yield and again after pulling away from stop light. The second time it happened I was unable to accelerate afterwards and had to pull over and turn the car off and back on. I went home and checked the oil and it was very low but I didn't suspect that to be the main issue. Topped off with oil.
1 month ago I noticed the upper breather hose from the PCV system to be cracked/broken as I was checking the oil. After doing some research and seeing that the system was never inspected at 120k as the routine maintenance suggests, I decided to have the system checked by a local mechanic. He suggested replacing the entire system (oil trap, hoses, intake manifold gaskets). He ordered the parts. I took the car back. Driving back the engine sounded very rough/loud. It would worsen when I accelerated and at the stop light the idle was low and I thought it would stall but it didn't. I could feel the vibration in the gas pedal. The check engine light flashed but did not stay on. Got home, restarted the car and it seemed better. Drove it back to the mechanic the next day and it seemed to drive and sound fine. I was due for spark plugs so had them replaced. The next week I had the PCV system replaced. Check engine light came on soon after and then a day later the Engine System Service Urgent warning. Has been on for 3 days now. Appreciate your thoughts.

Post by **oragex** » 27 Mar 2019, 22:02

First welcome. It is not an easy situation to point to a specific item, but a global thought is that the mechanic who worked on your car may not be the best choice. If possible ask members here for a known Volvo specialist in your area, or perhaps try using local.google.com to search a garage that works mostly on european cars.

Can't help more, but this would be a starting point. The best would be to use a more advanced code reader to see what the problem is, but my guess is the mechanic must have touched something that caused this problem. Even from the first visit it's just not ok to have the car showing issues after only the PCV inspection.

93SCMax · Post by **93SCMax** » 28 Mar 2019, 05:32

Original MAF (mass air flow sensor)? Ever cleaned?

I'd google/read up on replacing your MAF and the symptoms of one going bad. If this is the issue, cleaning the sensor, or replacing with a junkyard one with the same PN would keep your expenses down.

Good luck.

highmiles · Post by **highmiles** » 28 Mar 2019, 08:24

Swing into an parts place like Advance or Autozone and have them read the codes. Make a good note of them and post them back here. That will provide some direction.

EngineeringBloke · Post by **EngineeringBloke** » 28 Mar 2019, 08:32

And consider getting a code reader. Let us know what codes are stored.

You can use an ODB2 to Bluetooth adapter (from Amazon for about $12) and the Torque app (free or $5 for Pro version) on Android to read and reset codes. Plugs into the ODB2 port under the dash, near the steering wheel.

Or VIDA and DICE, which is more expensive, but more detailed, and can be tricky to get set up on a laptop.

537playing · Post by **537playing** » 28 Mar 2019, 12:03

I had that message when I changed the coils. It seems the coils I purchased was so bad the the cars computer generated that message. Did your mechanic change coils when he did the spark plugs?

EngineeringBloke · Post by **EngineeringBloke** » 28 Mar 2019, 15:36

Check engine light came on soon after and then a day later the Engine System Service Urgent warning.

While we don't know what the issue is within the car (the codes may be very useful), it is important to remember that the car does not have much capability to tell you what is going wrong, but the message does include the word Urgent. It is possible that damage to the engine can occur if it is driven further. It may just be that it will pollute more, but something expensive could be happening.

For example, if a coil is not firing, then unburnt gas can make it to the catalytic converter and wreck it in quite a short time. Those are not cheap.

rphelan · Post by **rphelan** » 29 Mar 2019, 04:34

Thanks for all of the advice. Check engine light went off yesterday. Went to Autozone and they said they could not help because the light was not active, even though the Engine System Service Urgent warning is still displayed. The car drove fine. I plan to swing in to a shop that specializes in Volvo and Saab today and see if they can help. Dealership can't get to me for another 5 days and I'd prefer to save some $ if it needs a job... Original MAF. Replacing that doesn't seem too bad. Hope to have more info later today. Thanks again.

Post by **abscate** » 29 Mar 2019, 05:18

Make sure you get the actual codes, not the descriptions.

MAFS rarely fail, most of the time people who replace them find a vacuum leak or loose hose that cause the problem

On a turbo car, the induction hose path between air cleaner to intake manifold has to be completely and tightly sealed or the car won’t run

rphelan · Post by **rphelan** » 29 Mar 2019, 10:48

The same momentary acceleration problem happened twice after leaving the shop. Had Jim at Scandinavian Auto Services (Wilmington, DE for those in the area) run codes. He was great. Stopped what he was doing after hearing my story. He recommended replacing the fuel pressure sensor. Codes:
280C Fuel Pressure Sensor
290B Fuel Pressure
281CH/10268 Undocumented Code