|
XC90 '02–'15 General Forum for the P2-platform XC90 model |
Information |
|
Engine issues 2006 2.4D5Views : 2231 Replies : 26Users Viewing This Thread : |
|
Thread Tools | Display Modes |
|
Oct 15th, 2021, 20:23 | #1 |
Junior Member
Last Online: May 12th, 2024 14:05
Join Date: Oct 2021
Location: Stockton-on-tees
|
Engine issues 2006 2.4D5
Hi all,
Just acquired a 2006 XC90. Has a few advisories on the last MOT so i took it to my mechanic to have a look. He instantly said there's an issue with the engine as it sounds really rough. I took it to the local indie volvo garage who said the same thing and quoted £500 to strip the engine to diagnose it. They couldn't give me any idea what could be wrong, just that there's an issue. Also said its pointless putting a diagnostic test on it. I've stripped the throttle body and EGR today and they were really filthy. I've cleaned them and refitted. Also i've done the glove test on the oil filler and it's inflating. Is this normal? I've also noticed that the ECR has been replaced. I have the following codes on a cheap OBD reader P0531 AC re-fridge pressure sensor P0601 Engine control module memory check sum error P0101 Mass air flow range performance problem - this came on the other day after a bit of hard driving but has since cleared. It seems like a new one has been installed recently. Any ideas where i can go from here? Thanks Pete [IMG][/IMG] [IMG][/IMG] [IMG][/IMG] [IMG]upload image[/IMG] [IMG][/IMG] |
Oct 16th, 2021, 08:06 | #2 |
Premier Member
Last Online: Mar 20th, 2024 18:26
Join Date: Jan 2016
Location: Cross Country
|
An ECM checksum error can occur if the ECM has had a remap.
Mine has, and so I have this error as a permanent error. But my engine has run fine for the last 10 years with the remap Obviously, an AC system error won't be the primary problem for your car. The amount of coked by carbon deposits is a concern. Getting that EGR cleaned is the right thing to do. You'll also have carbon all through the intake manifold, which will need to come off and be cleaned as well. Which means disconnecting fuel lines.
__________________
XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65. |
Oct 16th, 2021, 08:11 | #3 |
Junior Member
Last Online: May 12th, 2024 14:05
Join Date: Oct 2021
Location: Stockton-on-tees
|
Thanks for your reply. The intake manifold clean up is next on my list. What can cause this much build up? It's only supposed to have 80k miles on it.
|
Oct 16th, 2021, 08:37 | #4 |
ian ferguson
Last Online: Apr 4th, 2024 16:13
Join Date: Aug 2006
Location: London
|
Also if you take the inlet manifold off check the swirl flaps they may need replacing, they could be partly to blame for the carbon build up. just did this job on my 2006 d5 and my throttle body was as bad is yours. also it worth checking all the pipes for leaks. ian
|
Oct 16th, 2021, 09:16 | #5 | |
Premier Member
Last Online: Mar 20th, 2024 18:26
Join Date: Jan 2016
Location: Cross Country
|
Quote:
That's likely the problem. Less used car = more short journeys = more fuel burned = more time with cold engine = more soot buildup = EGR issues sooner rather than later. A car used more often has a engine that spends more time at normal temperatures (90°C) and consequently less carbon buildup. Anyway, clean it all up, and go from there. It may help you to know that MANY diesel cars with EGR valves suffer this issue. All makes, all models. Garages make good money from EGR and intake manifold de-coking and cleaning. And make sure you do a decent 1hr drive every tank of fuel to ensure DPF gets a chance to regen properly.
__________________
XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65. |
|
The Following 2 Users Say Thank You to SwissXC90 For This Useful Post: |
Oct 16th, 2021, 09:43 | #6 |
Junior Member
Last Online: May 12th, 2024 14:05
Join Date: Oct 2021
Location: Stockton-on-tees
|
|
Oct 16th, 2021, 09:57 | #7 |
ian ferguson
Last Online: Apr 4th, 2024 16:13
Join Date: Aug 2006
Location: London
|
That is the motor that and arm that controls the swirl flaps. the flaps are under the air intake cover on top of the head under the injection pipes.
it would be better to leave the arm with the wire round it alone. They do tend to fall off. |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|