Joined: Jan 2005

Posts: 1,062

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From: Devon

Hi guys, looking for some help regarding a my 2006 focus st. Bought it with a major head gasket fault, so couldn’t start it when I got it, thinking it was because the head gasket was that bad, so I stripped the engine out, skimmed the head as it was bent to hell, also skimmed the block, new gaskets, bolts, Cambelt, water pump, etc, all put back together, timed up correctly, it cranks over but does not fire, it does try but no joy😒 new plugs and decent coil packs installed, also tried a decent crank sensor, still no luck, any ST225 guru’s out there any advice would be awesome.

Thanks👍

Joined: Aug 2005

Posts: 8,349

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From: at home

Joined: Jan 2005

Posts: 1,062

Likes: 1

From: Devon

Fuel pressure good, it’s cranking fast enough, I must admit I haven’t done a compression test,
fault codes that I can see on dash are, D900, E510, A103, 9318, I think there’s another one I will check again tomorrow when I go back to my garage.

Joined: Mar 2006

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From: Lincs.

Joined: Jan 2005

Posts: 1,062

Likes: 1

From: Devon

Thought I’d give an update on the focus not starting, turned out to be the recirculating dump valve. I thought I’d remove it just to cancel it out, so I blanked it off and it fired right up. I’m assuming the valve is faulty. Any way all is good now👍

Joined: Aug 2005

Posts: 8,349

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From: at home

Joined: Jan 2005

Posts: 1,062

Likes: 1

From: Devon

I certainly do👍 Thanks for the suggestions 😉