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Mk6 135 power loss

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Mk6 135 power loss

Postby sowdenjimbo » Tue May 26, 2026 8:31 pm

I’ve plugged in and no faults showing and no lights on dash but seem to have lost some power noticeably, still drives and starts as it should, I’ve done a leak off test and all good, I’ve changed the turbo vacuum Solenoid as it was swelled up with rust, but could only find a 2 litre mondeo one which does plum up the same and is creating vacuum,
Not sure what else I need to be looking for,
I put this engine in a couple years ago with no information with Millage, it’s always had a slight mis fire when revved stationary but has never effective the drive or power whilst driving.
Any help appreciated
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Re: Mk6 135 power loss

Postby knobby1 » Wed May 27, 2026 4:01 am

sowdenjimbo wrote:I’ve plugged in and no faults showing and no lights on dash but seem to have lost some power noticeably, still drives and starts as it should, I’ve done a leak off test and all good, I’ve changed the turbo vacuum Solenoid as it was swelled up with rust, but could only find a 2 litre mondeo one which does plum up the same and is creating vacuum,
Not sure what else I need to be looking for,
I put this engine in a couple years ago with no information with Millage, it’s always had a slight mis fire when revved stationary but has never effective the drive or power whilst driving.
Any help appreciated


Couple of things...what code reader are you using..?? Mk6 Transits are "not" OBD-II compliant so most of the newer readers will not work.

Pop the fuel filter off and cut it open...check for sparkly metal bits.

Pretty sure the Mk6 2.4 135 has an electronic VNT turbo...was the original actuator solenoid totally dead..??

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2008 2.4L RWD 170+PS 6-speed 350 LWB High Roof..."Full Poverty Spec".

When I die, I want to go peacefully in my sleep like my Grandfather, not screaming like the passengers in his car..!
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