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d5 with intermittent power loss

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i have got a 2002 D5 but every now and then the engine will seem to be down on power and will get a white/grey smoke from exhaust. this maybe last for 30 secs then i will be back to normal. just before this happens i seem to get a hesitation / misfire with the engine and thats when i get the power loss slightly and the smoke.

could anybody suggest what might be causing this.

I have changed air filter and also cleaned out the 2 large rubber hoses and metal housing that run from crankcase down to inter-cooler.

thanks

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i have got a 2002 D5 but every now and then the engine will seem to be down on power and will get a white/grey smoke from exhaust. this maybe last for 30 secs then i will be back to normal. just before this happens i seem to get a hesitation / misfire with the engine and thats when i get the power loss slightly and the smoke.

could anybody suggest what might be causing this.

I have changed air filter and also cleaned out the 2 large rubber hoses and metal housing that run from crankcase down to inter-cooler.

thanks

Hi,i have had a D5 displaying similar symptoms,this vehicle would lose power under hard acceleration and go into limp mode.After being parked up for a short time all would be fine until loaded up again.In that instance although it looked like a boost pressure control valve fault it turned out to be the variable vane turbo that was causing the problem.Is it showing any fault codes at all?

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had the codes read last night and the one that appeared was P2044 which is wastegate solenoid !! can anybody explain this code a little more.

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P0244 BOOST PRESSURE CONTROL - FAULTY FLOW

ECM 6805

Diagnostic trouble code (DTC) information

Condition:

Diagnostic trouble code (DTC) ECM-6805 (P0244) is stored if the boost pressure deviates from the desired boost pressure for the engine control module (ECM).

Substitute value

-Engine speed (RPM) limitation.

Possible source

Flow too low or too high:

-Leakage in the vacuum hoses for the engine pads

-Leakage in the engine pads

-Air leakage in the intake system

-Leakage in the vacuum hoses to the turbocharger (TC)/turbocharger (TC) control valve

-Blocked hoses for the turbocharger (TC) / turbocharger (TC) control valve

-Damaged turbocharger (TC) control valve

-Damaged turbocharger (TC).

Fault symptom

-Poor performance.

Checking the component

-Ignition off

-Check that all hoses connected to the solenoid for controlling the engine pads are correctly installed, are not leaking and are not blocked

-Check the engine pads for leakage

-Check the connector for the variable nozzle turbo governor. Check for contact resistance and oxidation. Check that both the hoses connected to the variable nozzle turbo governor are correctly installed, are not leaking and are not blocked

-Check the pipe between the turbocharger (TC) and the intake. Check for leakage

-Reinstall the connectors, components etc.

Remedy as necessary.

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got my fingers crossed for you m8.

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got my fingers crossed for you m8.

just to let people know i had a split intercooler plus a front leeking engine mount, total bill from my friendly volvo specialist was

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just to let people know i had a split intercooler plus a front leeking engine mount, total bill from my friendly volvo specialist was

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