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Focus 1.8Tdci 2003 Rough Or No Idle After Starting

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Hi Chaps,

New member here with two focus's in the house and my wifes has an annoying problem.

Basically it will start first time but unless you give it a lot of throttle it wont stay running for a minute or so. After that it runs perfectly. No fault codes present either. So far I have,

1. Changed the glow plugs

2. Changed Cylinder head temp sensor

3. Sworn a lot

Has anyone else had this problem and can shed some light on it before I rip anything else apart?

Also, as other cars I have worked on have had coolant temp sensors rather than head temp sensors, does the Focus head sensor live in the coolant flow or is it meant to be in a dry housing? I was expecting a flood of coolant when I took it out but nothing. Just want to make sure there isnt a cooling system blockage.



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