So, the story is this:

Heater matrix failed a few weeks ago. Have bypassed it completely as a temporary fix, as I want to get the car through mot before starting to take the dash out. I reckon it failed due to too much water and not enough coolant in the system frankly. Panicked water fill on an event after a burst pipe, then only topped up with coolant at home rather than replaced. My own silly fault.

Anyway. Put everything back together, bleed the system, now when I take it for a drive, the temp continues climbing into the red and the overflow pipe is spewing out water + radiator is pretty much stone cold. Full of coolant, bleed, fans kicking in correctly. My current theory is that the pump has fubared as well. I'm hearing a sweak at tickover around the belts area as well, which I'm thinking might be the pump.

Anyone else any opinions? Seen a lot on here about the thermostat causing similar issues? Would prefer to be changing it!

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Road Rally car - Manstone Ph3 GTI-6. Quaife ATB, hydraulic handbrake, OMP Cage and loads of other rally crap!
Rally Car - Ford Olympic Blue!. Quaife ATB, hydraulic handbrake, Safety devices cage, GpN Pug Sport kit!

Doubt the pump has failed - sounds like head gasket failure as presurising the system ?

Rad shouldn't be stone cold though regardless of wether the headgasket has failed.

If your confident It's bled well then next thing I'd look at is thermostat

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Ryan

It sounds like the thermostat is getting stuck shut, which in turn has now damaged the HG.

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone