Cold start

1999 FORD FOCUS
125,000 MILES
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MILAN12345
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Ford Focus 1.8
Year:1999
TdDi Endura engine
Mileage: 125 k

When it's cold, the engine start and works rough, after 15 minutes it's smooth like it should be,through the rest of the day.
Motor mount it's changed.
What part could it be?
Sep 24, 2012 at 3:07 PM
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KHLOW2008
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More like the cold start is not working correctly.
Have you checked for trouble codes?
Sep 24, 2012 at 3:45 PM
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MILAN12345
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The engine works rough and shaking until it's warmed, that's the problem. I don't have any trouble codes through the scanner.
Sep 24, 2012 at 4:38 PM
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KHLOW2008
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I couldn't get any information on your engine so I don't know if the valve have hydraulic or adjustable lifters. If it is adjustable, I would suggest checking/adjusting them.

Do you have coolant or overheating issues?
Sep 24, 2012 at 4:55 PM
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MILAN12345
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I will have to take it to the mechanic i guess. I don't have such issues, the radiator is new (replaced), everything is ok. Is there any heaters to change, or some other part that could lead to this?
Sep 24, 2012 at 5:29 PM
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KHLOW2008
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Apart from the Engine Coolant Temperature sensor, there are nothing temperature related that I can think of that can cause the problem.
Sep 24, 2012 at 5:54 PM
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MILAN12345
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Glow plugs maybe? I haven't change them
Sep 24, 2012 at 5:59 PM
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MILAN12345
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The engine sounds good it shakes a bit inside the car when started but after 10 minutes driving theres is no shaking or anything. During the summer i haven't had such problems but now the cold starts and this showed up.
Sep 24, 2012 at 6:04 PM
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KHLOW2008
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No, glow plugs would have starting difficulty if they are bad.

Yes, the ECT seems a possible candidate.
Sep 24, 2012 at 6:19 PM
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MILAN12345
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Where is the location of ECT?
Sep 24, 2012 at 6:22 PM
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KHLOW2008
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Sorry I don't have any information on this vehicle so I can't tell you where it is located. For most vehicles it is at rear end of cylinder hear, near water outlet (thermostat housing).
Sep 24, 2012 at 6:41 PM