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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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Volvo C70 - Losing Power/ Rough Engine after long journeyViews : 418 Replies : 7Users Viewing This Thread : |
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Sep 4th, 2023, 09:41 | #1 |
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Volvo C70 - Losing Power/ Rough Engine after long journey
Hello, this has happened a few times now, lastly yesterday evening.
2.5 Petrol C70, 2006 Long stretches of motorway and dual carriageways, e.g 100 miles - all good running perfectly. Come of motorway and hit a set of traffic lights, the rumbles start, loss of power or intermitent power. If I coast / ease off it sometimes picks up again. I hit a second set of lights and was stationery for a few minutes, absolute hell, little or no consistent power, rumble rumble, shake shake. It is due a service ! Not convinced it will remedy the issue |
Sep 4th, 2023, 10:52 | #3 |
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I have, his was a turbo but mine is not. However some possible clues to the issue in the initial post.
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Sep 4th, 2023, 11:05 | #4 | |
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Quote:
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Sep 4th, 2023, 11:50 | #5 |
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Is a replacement fuel pressure sensor an expensive part and will the labour be a lot ?
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Sep 4th, 2023, 22:26 | #6 |
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you don't change it unless you can prove it is faulty, It could get very expensive doing it that way..
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Sep 4th, 2023, 22:53 | #7 |
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Have you checked for any codes using Volvo compatible gear? Volvo petrol and diesel engines usually have several different "limp modes" not all of which generate a message or EML. For example on petrol turbo engines if one of the knock sensors fail or is disconnected, you have about 50% power but no lights or messages.
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Sep 10th, 2023, 22:25 | #8 |
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Diag ftw
Yeah I'd 100% get it hooked up to a 'decent' diag kit if you've got one, Vida if at all possible, otherwise it is very much guesswork in all honesty.
Had I not had Vida (or my YouCanic diagnostic tools), I most definitely wouldn't have started by replacing the VVT Solenoids on mine. After working through each of the codes and replacing the most likely sensor, car is running like a dream (more so now it's 279bhp - Thanks Celtic Tuning). If you've ever around the Leeds area, give me a shout. Would happily scan it for you. |
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loss of power |
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