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Bubbling Coolant - Normal or Head Gasket

WoodyS27-ZS
WoodyS27-ZS
in Ford Fiesta Club

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Hi guys,

Had something I've never encountered before, yesterday I parked up and turned the engine off (2013 1.0 Ecoboost 125hp) and the fan was still running. Thought it was a bit odd as the temp was normal and it wasn't a long drive although I did boot it a bit at one point (nsl road). I turned the key once and the fan went off so I thought I'd have a look under the bonnet. 

The coolant was bubbling, I thought at first it was boiling because the pipes going to/from it seemed very hot as well. After doing a bit of research I found it could just be the coolant being recirculated to cool the turbo but I noticed a bit of oil on the top of the engine so I'm guessing there's a leak somewhere. It seems to drive spot on though and my missus has used it for work (healthcare worker) the last 2 weeks and said it's been fine. 

Any thoughts welcome.

  • Quote


    The fan can stay on to help cool the engine yes. Your head gasket is only suspected as being bad if you're losing coolant/oil (this is usually due to it being burnt in the engine rather than a leak down the engine block) or you're getting oil in the coolant and vise versa.

  • Quote

    key question to start with is coolant level dropping when engine cold? Then take things from there.

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