2002 Ford Focus rough idle

2002 FORD FOCUS
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PUFFNSTUFF
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2002 Ford Focus 4 cyl Front Wheel Drive Automatic

I have an 02 focus se. Recently i have been getting a rough idle after first starting the car after it sits overnight, like the the engine shakes and whole car vibrates. ... runs fine after the car reaches normal operating temperature. Anyone have any ideas what may cause this.
Sep 8, 2010 at 2:49 AM
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RASMATAZ
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Engine running rough or misfiring can be cause by the following:

1.Defective spark plug
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Idle air control valve.
Sep 8, 2010 at 5:33 PM
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PUFFNSTUFF
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This only happens when engine is cold...car is fine after it warms up. Has new fuel filter, new plugs and wires, new air filter. Engine light is not on... I was thinking motor mounts maybe. any suggestions..anyone..thanks!!
Sep 9, 2010 at 1:59 AM
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RASMATAZ
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Try checking the coolant temperature sensor-
Sep 9, 2010 at 4:32 AM
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PUFFNSTUFF
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Thanks!!!I will try it, but wouldn,t that light up my check engine light if it was faulty.
Sep 9, 2010 at 7:31 AM
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RASMATAZ
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Sometimes a sensor will failed w/o popping the CEL
Sep 9, 2010 at 7:34 AM
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PUFFNSTUFF
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Thanks!! I will try it, see what happens...
Sep 9, 2010 at 11:37 PM
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MICKMC
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[quote:7e2b97c5e9="johnpottle"]Thanks!! I will try it, see what happens...[/quote:7e2b97c5e9]

Having the same issue. Were you able to resolve it?
Oct 6, 2010 at 12:14 PM
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PUFFNSTUFF
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No not solved...people telling me could be motor mounts...wasn,t like it until my thermostat went, and i installed one from Canadian tire, but can,t see a thermostat doing that, even if it is faulty, don't think it will cause that. when i start on cold engine...gets vibration throughout car until it warms up.
Oct 7, 2010 at 12:21 AM
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MICKMC
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[quote:cb4e723b30="johnpottle"]No not solved...people telling me could be motor mounts...wasn,t like it until my thermostat went, and i installed one from Canadian tire, but can,t see a thermostat doing that, even if it is faulty, don't think it will cause that. when i start on cold engine...gets vibration throughout car until it warms up.[/quote:cb4e723b30]
Going to be changing motor mounts today. Will let you know how it turns out.
Oct 7, 2010 at 3:06 AM
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PUFFNSTUFF
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okay, thanks!!!
Oct 7, 2010 at 3:16 AM
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PUFFNSTUFF
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[quote:30177b68a6="mickmc"][quote:30177b68a6="johnpottle"]No not solved...people telling me could be motor mounts...wasn,t like it until my thermostat went, and i installed one from Canadian tire, but can,t see a thermostat doing that, even if it is faulty, don't think it will cause that. when i start on cold engine...gets vibration throughout car until it warms up.[/quote:30177b68a6]
Going to be changing motor mounts today. Will let you know how it turns out.[/quote:30177b68a6] k thanks!!!
Oct 7, 2010 at 3:19 AM
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PUFFNSTUFF
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problem solved..thanks for responding
Dec 9, 2010 at 5:33 AM
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