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High Mileage Mk2 1.6Tdci Problem (Turbo..?)

chris158560
chris158560
in Ford Focus Club

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Hi

I am having a recurring issue with my Focus which I am having trouble diagnosing.

I have a high mileage (168,000 miles) 2007 Mk 2 Focus 1.6tdci (110ps version) and I am experiencing a semi-regular issue under acceleration at 1900rpm where the engine will repeatedly start hesitating then return to normal. When the issue occurs it will happen consistently at 1900rpm in all gears and is accompanied by a squeaking/squealing noise.

I assume as the RPM is always consistent it is relating to the turbo rather than the running gear or the gearbox, but I am struggling to find a consensus of opinion on other message board posts describing similar problems. I had the EGR valve replaced less than 5k miles ago due to sudden lack of power across the whole rev band, and an engine warning message pointing towards a stuck EGR valve. Having this change solved that issue.

This issue did occur a couple of times before the EGR valve change, so when I had that replaced I hoped that would have been the cause, but today the issue has re-appeared.

Any thoughts? Obviously I am not looking to spend a lot of money keeping it on the road at this point (looking at auto!trader, 170k seems very high mileage for this engine!), but a diagnosis to give me a better idea what I am looking at would be very handy!

Thanks, Chris.

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