Engine cuts out
2004 Peugeot 307 cc convertible
Car: Peugeot 307
Year: 2004
Variant: cc convertible
Year: 2004
Variant: cc convertible
Categories:
Running Rough, Starting & Power Loss
the car always starts first time. It runs fine for around 20 seconds then ticks over rough and the engine shakes quite badly for around 3 mins. If you try and drive it, the engine cuts out but when the temp gets to around 70, it goes sweet as a nut and no further problems. I've replaced the temp sensor and checked all the usual: plugs, coil pack breathers etc. but everything seems fine. I've even tried a lower viscosity oil in case it's something to do with the hydraulic tappets, but no joy. Any ideas?
Problem added: Dec 11, 2014 (9 years ago)
Are there any codes? Maybe worth checking this first.check for air leaks.from your description it maybe a misfire issue.
Answered Dec 12, 2014 (9 years ago)
I might be wrong but I think that engine has TWO coolant temperature sensors,
one for the gauge and one for the fuel injection.
But either way what I'd be looking at here is a graph of the output of the coolant sensor.
on better quality diagnostics it can be set up to record the sensor output wave from dead cold to full running temperature.
A steady rise on the graph with no sudden drops is what I want to see.
Sensors can fail in such a way that they can give false outputs at any point.
Or the ECU can get the wrong reading.
This is why a graph output is your next logical test.
one for the gauge and one for the fuel injection.
But either way what I'd be looking at here is a graph of the output of the coolant sensor.
on better quality diagnostics it can be set up to record the sensor output wave from dead cold to full running temperature.
A steady rise on the graph with no sudden drops is what I want to see.
Sensors can fail in such a way that they can give false outputs at any point.
Or the ECU can get the wrong reading.
This is why a graph output is your next logical test.
Answered Dec 13, 2014 (9 years ago)
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