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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...   Chevy strut replacement I'm trying to get a sensor of some kind ...   2020 suburban new transmission and issues after install recently had the transmission fail at 11...   Caliper piston post cleaning won't screw in Hello, 2013 Hyundai Elantra limited (ma...

Search Auto Parts Search 1999 Mercury cougar 2.0 Stalling out on idle Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Car Troubleshooting jmurray New User Jul 14, 2012, 10:45 AM Post #1 of 4 (2658 views) 1999 Mercury cougar 2.0 Stalling out on idle Sign In Hello, I have a 1999 mercury cougar with a 2.0. Recently i was having some problems with the car miss fireing. I replaced the spark plugs and after i did the car ran like new. However, when i start it now, there is no idle it just stalls out. It might idle for a second but will not hold for long. I can start the car in nuetral and throw it in drive and it runs fine, but when i come to a stop it will either stall or idle up and down real rough like. I had a couple things in mind that it might be such as the idle control motor or the iac. If it makes a difference i just changed the starter. But i dont think that would cause this in any way. Thank you for any help. Hammer Time Ultimate Carjunky / Moderator Jul 14, 2012, 11:56 AM Post #2 of 4 (2623 views) Re: 1999 Mercury cougar 2.0 Stalling out on idle Sign In I'm expecting that you either damaged or left off one of the vacuum lines. Is the check engine light coming on at all? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. jmurray New User Jul 14, 2012, 12:10 PM Post #3 of 4 (2620 views) Re: 1999 Mercury cougar 2.0 Stalling out on idle Sign In I though that too, but i checked all the lines. I dont notice and leaks.. And the engine light is on, i had that looked at and it was the O2 sensor. For the downstream. Hammer Time Ultimate Carjunky / Moderator Jul 14, 2012, 12:36 PM Post #4 of 4 (2613 views) Re: 1999 Mercury cougar 2.0 Stalling out on idle Sign In You had that looked at since this problem or before? If before, it needs to be looked at again. I need the exact code numbers of any codes stored. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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