2001 Mercury Cougar IDLING ROUGH

2001 MERCURY COUGAR
140,000 MILES • 6 CYL • FWD • AUTOMATIC
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MDD423
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whenever it gets cold outside and i start the car, the car runs really bad. it acts like their is not enough fuel getting to the motor. it never stalls or dies but it runs horribly. the thing i dont get, is that it only does it when it is cold, when it is warm, it runs perfectly fine. and on the road or interstate its perfectly fine, but when im at a stop light or in park it runs horribly.
Dec 6, 2009 at 6:57 PM
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RASMATAZ
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  • 75,992 POSTS
Check and test the engine coolant temperature sensor and the idle air control valve to include the TPS/MAF sensors.
Dec 7, 2009 at 12:23 AM