2005 Volvo XC90 Check engine light on

Tiny
KEN CULLEN
  • MEMBER
  • 2005 VOLVO XC90
  • 2.5L
  • 5 CYL
  • TURBO
  • FWD
  • AUTOMATIC
  • 9,500 MILES
The previous owner had never change the oil the dealer told him it needs a new engine the car runs great my mechanic says it's putting a code P0027
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Friday, June 20th, 2014 AT 5:00 AM

6 Replies

Tiny
CARADIODOC
  • EXPERT
We don't have a listing for that code so it would help if you can include the description. I doubt serious damage was done in 9,500 miles but turbocharged engines are a lot more picky about quality, clean oil.

In the '80s, while working at a mass merchandiser, a fellow came in with a Dodge Dart with the slant six cylinder engine. We had to work to get about three drops of oil out of it when we tried to drain it. It was totally empty, but since those engines had solid lifters, it was perfectly quiet, and seemed to run fine after the oil change. Another lady came in with a Plymouth Horizon with 90,000 miles, and she claimed the oil had never been changed since she bought the car new. No one ever told her the oil needed to be changed regularly! Another person, an elderly gentleman, got viciously angry when we tried to convince him the oil needed to be changed regularly on his Cadillac. He accused us of trying to sell him something that wasn't needed!

To add to the stupidity, I haven't changed the oil in my '88 Grand Caravan in over 12 years, 150,000 miles. It leaks enough from the oil pressure sending unit that I have to add a quart about every 1,000 miles, so it gets the additives replenished regularly. Obviously I'm not suggesting anyone else abuse their engine like this, but I did it to show my students what some engines are capable of. Just put another 150 miles on it today. There's over 415,000 miles on it so I guess it doesn't pay to change how I take care of it now.

The point is, after seeing all of this, I'm skeptical you need a new engine. I'd want to hear a lot more details of why they think that or what problem has been caused.
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Friday, June 20th, 2014 AT 11:25 PM
Tiny
KEN CULLEN
  • MEMBER
I went to the dealership yesterday and had a diagnostics three hours later he told me that he thinks the check engine light goes on because of low oil pressure the oil pressure light or low oil does not come up on the screen only a check engine light he says that camshaft seals are leaking and the oil pump seals are leaking that need to be replaced and eventually the turbocharger will need to be replaced slight oil in hoses also he said it was 2 quarts low on oil and he thinks that's why the light is on I am thinking about attempting to put in the camshaft seals and rebuild the oil pump they wanted $1400 to do that
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Saturday, June 21st, 2014 AT 4:45 AM
Tiny
KEN CULLEN
  • MEMBER
He said as long as I keep the oil level up the check engine light should not go on but last night the check engine light went back on I just checked the oil and it's good but it is leaking
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Saturday, June 21st, 2014 AT 5:00 AM
Tiny
CARADIODOC
  • EXPERT
I have to disagree with your mechanic. Oil level and pressure are not monitored by the Engine Computer. There are well over a thousand potential diagnostic fault codes for the things that computer DOES monitor, and when the Check Engine light turns on it means the code it set is related to something that could adversely affect emissions. About half of that list of fault codes will not affect emissions and will not turn the light on.

If you have a problem with low oil pressure, that will turn on the "Oil" warning light. Seal leakage is not caused by failure to change the oil regularly. At the mileage you listed those should be handled under warranty. Turbochargers do need high-quality, clean oil, but to predict an early failure so soon is irresponsible. If this dealer is trying to avoid doing work under warranty or to make you pay for things that should be under warranty, I'd get a second opinion from a different dealer.
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Saturday, June 21st, 2014 AT 8:52 PM
Tiny
KEN CULLEN
  • MEMBER
. The car is nine years old 95,000 miles and on the second owner I don't think it's still under warranty. I paid to dealership $107 to do a diagnostics. They said oil pan sludge cleanout $800 timing belt seals and oil pump gaskets $1400. Turbocharger $2000. He said it was 2 quarts low on oil which I checked it and I don't think it was. He filled the oil and reset the code cleared it. Doyle level is still good with the code came back on 10 miles later. The P code came from my mechanic down the street who's not a highly skilled mechanic. I bought this car for $2000 I'm trying to decide if it's worth trying to repair it. Or put it on craigslist. I was in heavy wreck autobody repair for 35 years. I could take a car part and put it back together. I've been out of the business for 10 years I do construction now. I still enjoy working on cars. If this was a 1969 Firebird I would've had it fixed immediately. So back to point in hand do you think their dealership did not tell me why the check engine light is on so they could get the work.
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Sunday, June 22nd, 2014 AT 5:38 AM
Tiny
CARADIODOC
  • EXPERT
I'm seeing things differently now. You listed the mileage as 9,500. I suspect I glanced at a banner ad for a 2014 model and took that to mean this is an almost-new car. Sorry for my confusion. The fact remains that oil level and pressure won't set a diagnostic fault code. You likely still have some friends in the business. I'd approach them with the details and try to get a second opinion. I'm not against dealerships. In fact, often they're the place for the fastest and less-expensive repairs, but with all the costs you listed it would be less expensive to put a used engine in it.
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Sunday, June 22nd, 2014 AT 10:02 PM

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