Peugeot 207cc 1.6 GT Turbo - Turbo Failure

Honest John Back Room » Technical matters
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Sat 5 Dec 2015 21:27
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - jakomis

Basically the car is a 2007 model, 207cc 1.6 GT turbo version, 37k on the clock really immaculate and the engine is dry as a bone. Checked the obvious on the turbo, had sensor replaced five months ago, yet the problem came back today with no power what so ever from the turbo. getting frustrationg now. No cracked pipes, no leaks just not spooling up at all, driven it for a good half hour todya and still no turbo. Any ideas please ????

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Sat 5 Dec 2015 22:30
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - galileo

Is the turbo seized or does it rotate freely if you turn the compressor wheel (need to take the air inlet duct off to get at it). It should spin freely without nasty noises and shouldn't have excess side play.

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Sun 6 Dec 2015 09:02
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - Oli rag

If as you say there are no leaking pipes, I'd be more likely to suspect that the wastegate is stuck open. This could be either a mechanical fault or a sensor is causing the boost to dump.

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Sun 6 Dec 2015 12:54
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - jakomis

Hi thanks for the advice is this a simple fix can i change the sensor easy enough or is it a garage job

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Sun 6 Dec 2015 23:06
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - Oli rag

I think you would need a correct diagnosis before deciding how to tackle the work.

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Mon 7 Dec 2015 13:28
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - Gibbo_Wirral

That's very low mileage for a car of this age. What's the service history been like, particularly the oil?

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Mon 7 Dec 2015 15:43
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - Railroad.

What makes you so sure that the problem was ever a sensor fault? Assuming you scanned for fault codes which brought up a MAP sensor fault, how is the ECM supposed to know the difference between a MAP sensor low boost pressure fault reported because the sensor is duff, and a MAP sensor low boost pressure fault reported because there's low boost pressure? With a suitable scantool carry out some live data checks, and don't take fault codes as gospel. They give you an idea of where the fault information is coming from, and not specifically what's at fault.

Check the turbo vanes for condition, and for wear in the spindle. Also check to make sure the engine can draw a decent volume of air, and that neither the air intake or the exhaust is blocked. Check also that the valve timing is spot on and hasn't moved. Clean the MAF sensor with Air Intake cleaner too.

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Mon 7 Dec 2015 16:47
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - Cyd

With such low mileage for age, I'd check there isn't a exhaust blockage. Rotted silencer internals being a likely culprit.

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Tue 8 Dec 2015 14:07
Peugeot 207cc 1.6 GT Turbo - Turbo Failure - Gibbo_Wirral

I was thinking maybe turbo oil feed blockage, similar to what plagues the 407 with the 1.6 engine.

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