V40 1.9D 115 lacking power, idle and noise issues

Dirty Diesel · Jul 2nd, 2019, 21:04

Hello,

I'll get straight to the point. I've got a 2004 V40 1.9D 115, and it's had power problems for a good while now, probably half of the time I've owned it.

I've replaced so many parts already: turbo, MAF sensor, Vacuum Control Solenoid (on it's THIRD one), intercooler pipe to intake manifold gasket (not sure exactly what it's called). I recently carried out a minor service, but with a fuel filter, which didn't affect anything. I've spoken to multiple people, including the ever knowledgeable Mr. Gatos, and we've been stumped.

To be frank, I'm pulling my hair out with the car. If I could at least have the engine running right again, I'd be a lot happier.

I've had a guess at possibly injectors, but I think it could be another vacuum or possibly blocked catalytic converter issue, but can't say for certain.

The symptoms are: lack of power (I'd estimate 20-30 horsepower), puffing black smoke (albeit a lot less than it did before I fitted the intercooler pipe gasket), an odd idle, where it'll slightly drop it's revs then return to normal (it almost seems to be worse whenever it's colder, regardless of whether the engine is to temperature or not), and sounding far too loud at about 1600-1900RPM, almost like it's got an exhaust leak or intercooler pipe split.

I've check all the intercooler pipework and can't find anything wrong, no splits or anything. Also visually inspected the intercooler and found no obvious damage or any oily patches. Also checked the vacuum pipes for leaks and didn't find anything. I'm honestly stumped as to what could be causing it.

Compared to what a 1.9D 115 normal feels like, it feels sluggish, especially noticable in higher gears.

If anyone could give any sort of advice or insight on my situation, that'd be greatly appreciated!

Thank you in advance

Edit: I just realised that I made nearly the exact same post a few months ago, with one or two differences with the symptoms experienced. No conclusion was drawn, so feel free to take a look at that too: https://www.volvoforums.org.uk/showthread.php?t=293865

Jul 2nd, 2019, 21:04	#1
Dirty Diesel Member Last Online: May 4th, 2024 20:38 Join Date: Jan 2018 Location: Lancashire	V40 1.9D 115 lacking power, idle and noise issues Hello, I'll get straight to the point. I've got a 2004 V40 1.9D 115, and it's had power problems for a good while now, probably half of the time I've owned it. I've replaced so many parts already: turbo, MAF sensor, Vacuum Control Solenoid (on it's THIRD one), intercooler pipe to intake manifold gasket (not sure exactly what it's called). I recently carried out a minor service, but with a fuel filter, which didn't affect anything. I've spoken to multiple people, including the ever knowledgeable Mr. Gatos, and we've been stumped. To be frank, I'm pulling my hair out with the car. If I could at least have the engine running right again, I'd be a lot happier. I've had a guess at possibly injectors, but I think it could be another vacuum or possibly blocked catalytic converter issue, but can't say for certain. The symptoms are: lack of power (I'd estimate 20-30 horsepower), puffing black smoke (albeit a lot less than it did before I fitted the intercooler pipe gasket), an odd idle, where it'll slightly drop it's revs then return to normal (it almost seems to be worse whenever it's colder, regardless of whether the engine is to temperature or not), and sounding far too loud at about 1600-1900RPM, almost like it's got an exhaust leak or intercooler pipe split. I've check all the intercooler pipework and can't find anything wrong, no splits or anything. Also visually inspected the intercooler and found no obvious damage or any oily patches. Also checked the vacuum pipes for leaks and didn't find anything. I'm honestly stumped as to what could be causing it. Compared to what a 1.9D 115 normal feels like, it feels sluggish, especially noticable in higher gears. If anyone could give any sort of advice or insight on my situation, that'd be greatly appreciated! Thank you in advance Edit: I just realised that I made nearly the exact same post a few months ago, with one or two differences with the symptoms experienced. No conclusion was drawn, so feel free to take a look at that too: https://www.volvoforums.org.uk/showthread.php?t=293865 Last edited by Dirty Diesel; Jul 2nd, 2019 at 21:22.

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