The real cause of injector rattle?

[JTaylor2005]

So I was right all along - your gauge is talking billy bollocks.

HDis are SO thermally efficient, they struggle to maintain temperature when cruising because they're actually spending the vast majority of the energy actually driving the wheels rather than pissing it into the cooling system like other engines do!

The later EGR cooled HDis don't require the coolant heater, however when you disable the EGR, you remove the recovery of heat into the coolant and therefore they struggle again to warm up/stay warm.

Ahhh see mine is a very early one that doesn't have the egr cooler at all. Its just a straight bit of pipe with no coolant going through it.

I am wondering if on the early ones the glow plugs in the coolant pulse when it drops at cruising and then go off when you get the engine hot by driving harder etc.

And then on the ones with the egr cooling this isn't needed any more as it uses the heat from the exhaust gasses whilst cruising to keep the water temp up higher.

I have no idea I am just throwing ideas around but I don't think Peugeot would have been happy with their cars running lower than the stat rating as that would hurt their efficiency I would have thought. I am not sure though really.


I read the codes off on mine today using the bluetooth reader I have and it has come up with
P0380 - Glow plug / Heater Circuit A

Now I have only changed the cylinder glow plugs about a year ago and they were bosch ones and were all installed correctly.
I am not sure how fault codes are generated for glow plugs though.