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Black smoke, No power, No codes D5 E3 163 215k xc70Views : 555 Replies : 2Users Viewing This Thread : |
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Feb 27th, 2023, 11:34 | #1 |
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Black smoke, No power, No codes D5 E3 163 215k xc70
Hi.
Got this gremlin in my D5 120kW 163bhp Euro3 auto 215k miles (xc70) where there are black smoke, no power, no codes and wont rev past 2500rpm also has very noticable ticking noise. Struggle to start when warm but ok when cold. Happened after i hit speed bump (not sure if relevant or not) Also had camshaft error when this first happened. Troubleshooting done so far are as follows: 1. New camshaft sensor (cleared the code) 2. MAF readings within values (49-57 kg/h) 3. Fuel rail pressure within values 4. New fuel filter 5. Last x3 tanks had Shell premium diesel 6. Anything EGR related been eliminated by Vdash D5T5 Stage 1 EGR OFF 7. New MAP sensor 8. Intercooler smoke pressure tested no leaks 9. Intake smoke pressure tested no leaks 10. Exhaust removed from Turbo hot side to eliminate cat blockage (cat clean) 11. Injector leak back test between 6ml-10ml on warm engine 12. Injectors when disconnected engine splutters/dies (which indicates to me electromagnet switch works 13. Injector tips stripped and cleaned in sonic bath (spray pattern smooth) 14. Injectors reseated 15. Cylinder compression 350psi 16. Vacuum system new lines also new VNT 17. Turbo actuator moves when vacuum applied also moves freely when pushed by hand 18. Engine mounts hold vacuum 19. Timing not jumped 20. Engine loom wiring sleeves are cracked in multiple places especially above intake cover but strands have no damage. 21. Air mass/stroke 490mg/s 22. Air intake clear of obstructions of any kind, no blockages 23. Turbo cartrige spins freely, no exessive movement or any other damage seen 24. No misfire, idles ok Black smoke tells me overfueling/bad air to fuel mix Could ticking noise be collapsed lifters or something?! Just to note, when MAF is disconnected behaviour on engine does not change apart from triggering error code. Replaced with spare MAF unit and it reads same values in Vida also checked voltage in plug and it has 12v #1 pin and 5v#4 pin as per Vida. When revved (pedal burried in floorboards) for few seconds it triggers Engine Service Required message which on Vida comes up as MAF negative drift which is because it struggles to get air?! I'm out of my comfort zone on this one. I can get 120k engine cheap so do i just swap it out?!
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Don't follow the trail, be the one who makes it Last edited by alvislacitis; Feb 27th, 2023 at 12:00. Reason: additional info in title |
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Feb 27th, 2023, 12:35 | #2 |
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Good luck on finding the problem, air/fuel/breathing problems perhaps. I'm sure someone on here has seen this issue or can help.
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Feb 27th, 2023, 13:37 | #3 |
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That's a lot of work already done there, I must change commend you.
Perhaps verify that the hose at the turbo compressor inlet is not collapsing (and hence choking the air supply) when the engine is loaded?
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2004 XC90 D5 SE Geartronic 195000 miles |
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