2003 Mustang V6 Rough Idle

I checked everything and everything seems to be secure and in place. I have a 2003 F150 4. At idle, it is very rough but it does not stall. When cold, it idles fine. Improve Engine Performance. 2 V6 auto trans with 210k miles. This idle air control motor is designed to control the idle on your 1994-1995 Mustang. Run the engine until it reaches normal operating temperature. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. Anyways he got a new carburator the other day, we checked everything to make sure the car is ready to be started, and when we did try, the car would turn on and run, but only when we gave it gas, as soon as we didnt, it slowly stopped running. Help! 2003 Ford explorer 4. You can do a rough check on your radiator by letting the car get up to temperature, then rub your hand around the back side of the radiator. Rough running engine (2004 Ford Mustang) 2012 mustang GT rough idle; where is the EGR located on a 2007 mustang gt 4. Comp Cams Xtreme Energy Camshafts for your 2003-2004 Mach 1 at RPM Outlet. Each one has a specific job to do and below are those 'job descriptions': Letter A: Power (12 Volts) Circuit. he said it started doin that about a week before and asked for my input. Modular V10 (6. Ford Mustang my 2003 mustang started running rough all of - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. When I fiirst start it up it idles fine. Bought last year and 26 days after purchase the crank snapped. He went ahead and changed the plugs and wires and still no change. Please give me some suggestions on what he needs to check. Although generic, the specific repair steps may vary depending on. Why does my 1999 ford mustang engine idle rough? The 1999 Ford Mustang 3. Comp Cams 4V Xtreme XE-R Series XE270AH-114 Street & Strip Performance Rough Idle DOHC: Street & Strip performance. Q: my 2001 3. 1994 mustang gt misfire: Engine 1994 mustang gt Rough idle, misfire under acceleration: Weird idle or when engine hot running. engine running rough and shaking at idle It felt like I was riding on cobblestone, as I slowed it was easy to notice that the vibration was coming from the engine. I have this really annoying slightly rough idle when in drive and park, at stop lights and idling in park. -Discussion of Maint Issues for I4. Signs and Symptoms of a Bad Idle Air Control Sensor by Richard Rowe Connected to the engine's primary air intake valve (the Throttle Body, or TB), the Idle Air Control (IAC) valve is responsible for making minor adjustments to engine airflow. Every now and then I get an extremely rough idle. So it obviously stands to reason that a MAF sensor that isn't properly working would definitely make your idle rough. rparker_spam [email protected] Anyways he got a new carburator the other day, we checked everything to make sure the car is ready to be started, and when we did try, the car would turn on and run, but only when we gave it gas, as soon as we didnt, it slowly stopped running. My check engine light came on, so I. When I would. After accelerating from the first stop, there is a noticeable lack of power. Damage to the car’s carburetor and vacuum hoses can cause the engine to misfire, resulting in a rough idle. Supercharged 2003 Ford Mustang Roush 380R - R Is For Rip-Roaring The car oozes eyeball appeal, sitting just over the Roush wheels and looking sleek and fast-even when idle-with the Cobra hood. Ford Mustang my 2003 mustang started running rough all of - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. Now I noticed a hole in the vacuum line that leads to the intake tube on the other side of engine block. 2011 Ford Mustang V6 2003 Ford Mustang 2003 Ford Ka. It normally idles around 800 or 900 rpms, but lately it will slow. Changed fuel pump & filter this brought the PSI up in the range of 34-49 psi. Now, it idles rough. Mustang Engine Temperature Control - Troubleshoot Engine Overheating - Mustang Monthly Magazine With the radiator cap off, start the engine, run it at a fast idle (1,500 rpm), and watch. Symptoms in order of notice: Leaking oil pan Leaking front cover Leaking crankshaft seal Leaking transfer case (possibly unrelated) Leaking valve cover Slight rough idle. I checked everything and everything seems to be secure and in place. Mine would idle ok, but started missing under a load. Rough mustang used cars it drives good and is very fast but idles rough QR Code Link to This Post Hi this is a 2012 pony package Mustang 3. Idling problems on 2004 Ford Mustang 4. I kept hearing her restarting the car and then finally she 2003 Mustang GT Starts, Idles Rough, Gas Kills It - Ford Mustang Forums : Corral. To learn more, see reviews. Ford Explorer, Aerostar. 2003 Ford Mustang V6 3. A Ford F150 Idle Control Valve can keep your motor idling at the right RPMs. Trouble code P0171, P2195 Ford Focus. 2007 Ford Mustang 4. Is it normal for a 2003 4. I used to think it was worse when - Answered by a verified Ford Mechanic. Allow the vehicle to return to its standard idle. It has a rough idle at start, the check engine light is on, and the idle corrects itself usually after 20 to 30 seconds. the rough running condition is also much more pronounced at around 1800-200 rpms. com Car Chat > Ford > Mustang > Mustang Problem Diagnosis. Ford Mustang owners have reported 34 problems related to engine stall (under the engine and engine cooling category). Have you had any luck fixing the cold start issue? I have the same problem that when i start my car, it idles horribly likes its only hitting 2-3 of the cylinders, however when you give it a small rev, the problem goes away. Resist the urge to adjust the TB set screw for low idle concerns. 000 and no history of problems. Forums at Modded Mustangs > Mustang Forums > V6 Mustangs > 2003 3. problem has been going on for a long time and we can not figure it out. My 1994 Town & Country (3. Running Problems. You've replaced a lot of parts that could cause a misfire but one possible cause not mentioned is a leaking intake manifold gasket or plenum gasket. See Eddie at Red's Radiator and tell him I sent you. What would cause a 2003 ford mustang to lose power then light to come on but it would not cause a rough idle or engine noises. The idle air control motor (IAC) controls changes in idle caused by engine load. 3L engine with automatic transmission. I have a 2003 Ford Explorer that hasn't been idling well lately. I have a 95 mustang v6 that I got as a project. Just had this on th 06 v6 I just bought. Now I noticed a hole in the vacuum line that leads to the intake tube on the other side of engine block. After it finally starts to idle properly it runs fine. Signs and Symptoms of a Bad Idle Air Control Sensor by Richard Rowe Connected to the engine's primary air intake valve (the Throttle Body, or TB), the Idle Air Control (IAC) valve is responsible for making minor adjustments to engine airflow. - Mustang Monthly. With my diagnostic guage connected to the - side of the coil. Car will shake. Automotive Forums. Hold off on any further parts replacement until some basic data is gathered. See the 2008 Ford Mustang price range, expert review, consumer reviews, safety ratings, and listings near you. The mass air flow sensor on your Ford Mustang has four wires (circuits) coming out of the Plastic Round Air Filter Canister. Clean it out with CRC mass air flow sensor cleaner and clean your maf sensor while your at it. Reconnect the plug on the idle motor 7. My check engine light came on, so I. Why does my 1999 ford mustang engine idle rough? The 1999 Ford Mustang 3. Then let it idle for 10 minutes with and 10 minutes without heat on, then drive it. 0 had a cold start problem also, it was the o-rngs in the upper intake. I'm showing 7 volts in Park, dropping to 5 volts in reverse. This valve is comonly called the idle motor, the IAC (idle air control) or the IAB (Idle air bypass). Research, compare and save listings, or contact sellers directly from 70380 F-150 models in Independence. That progressed very quickly to horrible idle and a pretty bad fuel knock. 2003 Mustang gt cp, purchased from planet Ford dealership 20403 I-45 north, spring, TX 77388 (281) 719-3891 on June 28,2003. Rebuilt the fuel filter head. Read more Ford reviews to learn about other models. Engine Stalling Due to Failed Crankshaft and/or Camshaft Sensor The engine may stall when the engine is warmed up. 3 liter engine. Welcome To V6Mustang. Engineering is investigating. Disconnect the plug going to your idle motor which is located on the front of your throttle body. Why does my 1999 ford mustang engine idle rough? The 1999 Ford Mustang 3. These easy to install IAC motors improve idle quality in your GT, Cobra, Bullit, and Mach 1. I hope U find the problem. Genuine Ford Part. com Car Chat > Ford > Mustang > Mustang Problem Diagnosis. It is worth a call to Ford with your VIN number. r/MechanicAdvice: This is more than a car repair forum! Press J to jump to the feed. 89 gt rough idle and stumbling. Thanks guys!!. The contact owns a 2003 Ford Mustang. So I swapped front and rear coils, expecting to get P0305. After accelerating from the first stop, there is a noticeable lack of power. I have a code on my mustang throwing a misfire in cylinder 3. I have a 95 mustang v6 that I got as a project. it seems to be problem with 3. pdf), Text File (. I know that this has been a plaque for some mustang owers. power × Newest mustang questions feed. But got P0303 instead. I cleaned the MAF filaments, changed the air filter and put a new Idle Air Control Valve on and have no change in symptoms. My 1996 Chevrolet Cavalier (2. Comp Cams 4V Xtreme XE-R Series XE270AH-114 Street & Strip Performance Rough Idle DOHC: Street & Strip performance. Here is the interior fuse panel and i can get under hood as well if you need it also a able owners manual d like ford mustang v6 and gt 2005 2017 fuse box diagram mustangforums 2005 ford mustang interior greatest 55 super 2017 fuse box diagram ford mustang v6 and gt 2005 2017 fuse box diagram 2003. Drive your Ford Mustang gt to complete the relearning process. 0 sohc v-6 on my '01 explorer sport, 2-wheel drive. 2 liter V6 engine. Learn more about the 2001 Ford Mustang. It would start and idle rough for several seconds untile the o-rings expanded just enogh to stop the air leak, after that the truck ran perfect. 2008 F150 idles really rough codes P2195 P2197 Hi guys, I have a 2008 F150 that idles really rough when it will idle. Problem hadn't reappeared for me yet, but it has only been a day or two so far. Buy a new Idle Air Control Motor for all 1999-2001 Cobra Mustangs from CJ Pony Parts. 0L Power Stroke Diesel - 6. I don't know if it's a vacuum leak or a sensor of some sort. While there are a variety of reasons your Ford Mustang has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. 04 GT New intake manifold and car now has a rough idle: 2003 Ford Mustang V6 3. A Ford Escape Idle Control Valve works with your car's CPU. After replacing these, upon start up it rough idles and sputters pretty badly. I have a 1998 Ford Ranger XLT 3. Put new spark plugs and spark plug wiring and new fuel injectors and putting new. Even if it doesn't have any visible damage, it's not a bad idea to replace it at the mileage you've got, if you're still running the stock part. In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register. Fix a surging or rough idle in your 1994-2004 Mustang with a direct replacement idle air control motor. I jave a 2000 4 cylinder honda accord. Now, it idles rough. A Ford F150 Idle Control Valve can keep your motor idling at the right RPMs. no one was able to resolve the problem after all these years. I have the exact same problem after I cleaned my throttle body. Genuine Ford Part. This only happens when I have the air, or defrost on. Fixed it by disconnecting battery, cleaning MAF sensor, and checking sparkplugs. 4/5 March 15, 2018. A Ford Escape Idle Control Valve works with your car's CPU. Looking for a 2003 Ford Mustang IAT Sensor? Get yours at Wholesale Prices and Free Shipping over $50 only here at AutoPartsWarehouse!. However, the most likely causes come from the basic operating components that control fuel and ignition. Average repair cost is $200 at 77,050 miles. power × Newest mustang questions feed. 6/04/2003 10:44:26: Subject: Rough Idle at Start Up IP: Logged Message: Hello all, I haven't posted here in a while. Welcome To V6Mustang. Idle problems and cranking problems (2003 Ford Mustang GT) Car was rough idling on acceleration and idle. Anyways he got a new carburator the other day, we checked everything to make sure the car is ready to be started, and when we did try, the car would turn on and run, but only when we gave it gas, as soon as we didnt, it slowly stopped running. 2003 Ford Mustang V6 3. This is a step by step procedure that will cause your car's computer to relearn the proper idle. Application. With my diagnostic guage connected to the - side of the coil. Rough mustang used cars it drives good and is very fast but idles rough QR Code Link to This Post Hi this is a 2012 pony package Mustang 3. Needs lower gears, exhaust upgrades, larger throttle body and mass air, bigger fuel injectors and a 2200+ stall with automatics. MY 2003 GRANDPRIX GT LOOSES POWER AFTER WARMING UP FOR 3-5 MIN BUT RUNS GOOD WHEN I FIRST START IT IN THE MORNING 2 Answers. 0L Performance running rough and surges at idle - Mustang Forum - Mustang World Mustang Grilles , Mustang Windshield banners , Mustang Bumper inserts and more at MW Speedshop. 0 liter v6 flex fuel. 2003 V6 mustang idles irratically and dies at stops. Today I started it up and quickly noticed that the light was on and there was some small hesitation when accelerating with a rough idle and just something off, like that cylinder wasn't working. - Mustang Monthly. I can also correct the problem by disconnecting a vacuum line for a few seconds. Supercharged 2003 Ford Mustang Roush 380R - R Is For Rip-Roaring The car oozes eyeball appeal, sitting just over the Roush wheels and looking sleek and fast-even when idle-with the Cobra hood. Press question mark to learn the rest of the keyboard shortcuts. He went ahead and changed the plugs and wires and still no change. A vacuum leak can also cause the engine to idle at a higher than normal rate, around 2,000 RPMs or higher. Ford Mustang Fuel Problems car 6 cyl. When I fiirst start it up it idles fine. 2003 Mustang gt cp, purchased from planet Ford dealership 20403 I-45 north, spring, TX 77388 (281) 719-3891 on June 28,2003. Re: Rough idle when a/c is on If it is shaking bad it could be a bad ac bearing 2000 Ford Ranger XLT 4x4 Offroad, 4. How to Set the Idle for a 1992 Nissan Sentra. Fixed it by disconnecting battery, cleaning MAF sensor, and checking sparkplugs. 2003 v6 Mustang selling all parts LOOKING FOR TRADE ALSO FOR 90-98 toyota or son < image 1 of 8 >. Comp Cams 05-09 GT MuthaThumpr Cams- Very Rough Idle, Largest Cam that will work with Stock heads- BIG CAM , Helvetica" size="2">MUTHA' THUMPR - Very rough idle, biggest cam for stock heads. Reply 1: check for vacuum leaks check and suspect IAC valve remove clean and or replace. 6L GT Mustang suffering from surging, rough or hanging idle? Then you may need to replace your old stock Idle Air Control Valve with a brand new genuine Ford IAC Valve from AmericanMuscle. Sister site MachEforum has posted these digital previews of the upcoming Mach E, Ford’s first fully electric vehicle. i own a 2001 v8 tundra with 67k miles. Fits 1994-1998 Ford Mustang Chrome/Smoke Amber Corner 1PC Headlight Lamp. 2005-2006 Mustang GT Turbo System by Turbonetics. Hi guys, I have ford escape 2003 (3. Needs lower gears, exhaust upgrades, larger throttle body and mass air, bigger fuel injectors and a 2200+ stall with automatics. The same thing happens while drivingit'll stall when coming to a stop. Symptoms in order of notice: Leaking oil pan Leaking front cover Leaking crankshaft seal Leaking transfer case (possibly unrelated) Leaking valve cover Slight rough idle. Engine is rough at that idle of 500-550 rpm. 2003 mustang cylinder 2 misfire. You guys helped me do all my mods last summer, and haven't had any major problems with truck tell lately. Hold off on any further parts replacement until some basic data is gathered. 0 Vulcan Tech Lots Of Problems Solved. However I did take the time to do an oil change, unplug the battery so the computer reset and I ran some Sea Foam through the intake, oil and gas. For the ODB2 method, look at the TP-MODE PID to see if it's "P/T" (part throttle) when the idle is too high. After a 10 miles stretch on the highway, I exit, and the idle is worse than before. Other than this everything seems to be running very smoothly. 8L Impala - intermittent rough idle I have a similar problem with my 2003 Impala and the dealer cannot recreate the problem nor find anything wrong. Rough idle, loss of power 99 V6-3. 0 4x4 King Ranch with no mods and 103000. 0L V6 engines for an intermittent stalling problem. For this reason we have come up with a Troubleshooting Guide to help you out. After picking up the car, though, we noticed that the idle seemed much rougher than it had in the past. I took it to my mechanic, who said a definite diagnosis would require tearing down the engine. Cold start rough idle 2001 Taurus: HOTTUB3: Ford Rough Idle/Engine Stalling - 2006 Ford Taurus - RepairPal. 6 , rough idle, what can it be? 2004 ford taurus 3. -Discussion of Maint Issues for I4. Jump to Latest Follow Besides the rough idle the truck has lost major power and when I do step on it, the intake noise is. I believe the engine had bottom end work done when he started hearing knocking from a worn bearing, rod or crank I don't know. net Mustang Forum. 0 too many?. Help: Rough Idle and feels like its sputtering during acceleration. Also feel it buck a bit up around 40-60 MPH. Sometimes even almost coming to a stall, but never cuts off, but when it does that, it revs up high for a second, and then goes back to normal. " This was dated 10-4-2002. 8L) (at: autotecnico-online. 2003 Gt Rough Idle When Out Of Gear: 2003 Roush Running slight rough, and really slow 1/4 times: 2003 auto GT - Shifts seem too rough, could use some of your. Ford Mustang Crankshaft Position Sensor Replacement costs between $106 and $665 on average. 0L stalls, rough idle, engine dies - I have a 1999 B4000 4. 86 F-150 5. 6L GT Mustang suffering from surging, rough or hanging idle? Then you may need to replace your old stock Idle Air Control Valve with a brand new genuine Ford IAC Valve from AmericanMuscle. Circuit Descriptions Of The Ford MAF Sensor's Connector. Still no run or very poor idle when it will run, did a smoke test. so i have a 2005 ford mustang v6 automatic transmission with 95k on it in florida, united states of america. i cranked. The throttle body butterfly valve is designed to allow only a very small (if any) air to pass. 8 and car would stutter a bit. Circuit Descriptions Of The Ford MAF Sensor's Connector. 2003 Ford Mustang V6 3. no check engine light is on. As long as the engine stays running idle speed is not important at this point. 0 liter v6 flex fuel. 0L Blinking check engine light and extremely rough idle - ProbeTalk. Ford Mustang Engine Problems told me that was a norm with the V6 Mustang, which I took as total BS. Ford Mustang 2003, Fuel Injection Idle Air Control Valve by Standard®. P0171, P2195 Ford Focus I have a Ford Focus ZX3 2003 with a 2. They are fine with 1-2 people on board. I know that this has been a plaque for some mustang owers. Looking for a 2003 Ford Mustang IAT Sensor? Get yours at Wholesale Prices and Free Shipping over $50 only here at AutoPartsWarehouse!. Some are related to intake manifold, some are to the vacuum line system, most the one connected to the PCV Valve. Do you have a rough idle in your Fox Body Mustang? Have you recently changed or upgraded your Mustang's throttle body? Chances are you need to adjust your Mustang's Throttle Position Sensor (TPS). After a 10 miles stretch on the highway, I exit, and the idle is worse than before. Shop replaced valve cover gasket, now has rough idle at standstill The shop says that sometimes oil may get into the spark plug area and needs to burn off before it will stop. it almost feels like a miss. Rough idle, loss of power 99 V6-3. Then let it idle for 10 minutes with and 10 minutes without heat on, then drive it. Comments | By Brett Foote - October 30, 2019. Good shape minus some (what I thought to be) easy fixes for a moderately car-savvy person such as myself. Ford Performance’s MXS Battery Charger and Maintainer is a fast, easy full-service tool for any engine’s electrical system. original problem was the car drove fine except when you are at a stop sign or light with your foot on brake and your car vibrates inside. i just rebuilt the carb, but that didn't help. This company is not yet accredited. com! We are the oldest and largest V6 Mustang forum on the internet. 21 problems related to car stall have been reported for the 2003 Ford Mustang. after 5000 miles it developed a rough idle. The most recently reported issues are listed below. I wasn't sure if it was the transmission, brakes, or what. Since I bought the car I have done the following: 1. 8 products on Amazon. Average repair cost is $200 at 77,050 miles. Application. Genuine Ford Part. This forum is for commercial members to post their Mustang related information. He found arcing from plug wires and coil. Run the engine until it reaches normal operating temperature. My 2004 40th Anniversary Edition Mustang Convertible recently had been idling too high. idle was very rough, even with the ac off. 2003 Mustang Convertible Power. If the car starts when cold but, idles rough or does not want to stay running, this can indicate a problem with the engine. 2006 Mustang Fuse Box Diagram - Welcome, thank you for visiting this simple website, we are trying to improve this website, the website is in the development stage, support from you in any form really helps us, we really appreciate that. See Eddie at Red's Radiator and tell him I sent you. What is the idle set at? It seems like the idle was high before the PCM learned the trims then dropped down and you noticed it running rough. The fact is that not only will it make your idle rough but it could cause a whole other list of problems including bad fuel mileage, and lack of power. Drive your Ford Mustang gt to complete the relearning process. Still lots of smoke and some rough idle on startup this morning. Still no run or very poor idle when it will run, did a smoke test. Tune Required vs No-Tune Required Mustang Cold Air Intakes. This idle air control motor is designed to control the idle on your 1994-1995 Mustang. I wasn't sure if it was the transmission, brakes, or what. It had blown was gasket and ran rough at idle with lack of power. Order Idle Air Control Valve/Motor for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. How to Set the Idle for a 1992 Nissan Sentra. When an Idle Air Control Motor starts to fail, it can cause a rough idle, maintenance light, this will decrease the fuel mileage. Comp Cams Xtreme Energy Camshafts for your 2003-2004 Mach 1 at RPM Outlet. 7L V6 Mustang Spark Plugs from Ford Dealer. Ceramic board provides reliable voltage to eliminate engine rough-idle problems; Each new sensor is road tested to ensure real world performance and to verify that each design meets our high standards for quality; Engineered to stringent tolerances based on our Canadian engineers' in-depth knowledge of the OE part it's designed to replace. After its sit and you start it up the whole truck shakes real bad then when the engine gets warmed up it smooths out some but still runs somewhat rough. Good shape minus some (what I thought to be) easy fixes for a moderately car-savvy person such as myself. I have a 2003 Mustang GT. What this series of articles is aimed at is how to fix the most common idle problems found in the Mustang. I recently sent the fiance out with the Mustang while I was doing some work in her STi. There is also an occasional engine knock on cold start up. Hi guys, I have ford escape 2003 (3. There is a lack of power and sputtering with a miss when driven, most of the time. This is a general guide which will list symptoms for 944 starting and running problems and common causes of those problems. Ok I have a 2003 Mustang Mach 1 with the DOHC 4. I have a 1998 Ford Ranger XLT 3. 2003 Ford Mustang Mach 1 Like GTO, another musclecar icon nameplate returns gas-pressurized Tokico struts and shocks for better wheel control on rough surfaces. Overview If you've stumbled upon this site, you probably own a 2001-2004 Ford F150 with the 4. 0 stumbling and rough idle. 8 products on Amazon. The parts and labor required for this service are. I got it checked and: P0108 MAP/BARO circuit. Changed fuel pump & filter this brought the PSI up in the range of 34-49 psi. - Mustang Monthly. It only takes a minor problem like a fouled spark plug to cause your engine to vibrate. getting tired of it shaking. See the 2008 Ford Mustang price range, expert review, consumer reviews, safety ratings, and listings near you. Sometimes around 300-400 rpm. 1994-2004 Mustang Emission Parts & Sensors Tech Info Faulty 94-04 Mustang emission sensors can cause your motor to run rough, decrease fuel mileage, and lose performance. And there's a ticking sound that my car makes when it warms up in the morning. After it finally starts to idle properly it runs fine. Re: Rough idle when a/c is on If it is shaking bad it could be a bad ac bearing 2000 Ford Ranger XLT 4x4 Offroad, 4. It runs fine now and from what I can tell has good compression. Nissan Maximas with a vacuum leak can idle very rough, like the engine is struggling while the car is stopped at traffic lights. Looking for a 2003 Ford Mustang IAT Sensor? Get yours at Wholesale Prices and Free Shipping over $50 only here at AutoPartsWarehouse!. Your idle should be calm after. 8L gets around 12mpg and seems to shake a bit when started cold and has a bad rough idle when warm: Engine Need Help Tracking A Rough Idle On 2003 V6, Not Iac Valve. 6 , rough idle, what can it be? 2004 ford taurus 3. 04 GT New intake manifold and car now has a rough idle: 2003 Ford Mustang V6 3. When i am driving and shift neutral and come to a stop it will 2000 Idle. Buy a new Idle Air Control Motor for all 2001-2004 GT Mustangs Built After September 6, 2001 from CJ Pony Parts. It's the LFX V6 engine. com! We are the oldest and largest V6 Mustang forum on the internet. Buy a new Idle Air Control Motor for all 1999-2001 Cobra Mustangs from CJ Pony Parts. Free Shipping! Click or Call 1-877-578-2433. 2017 Ford Mustang V6-3. I have the exact same problem after I cleaned my throttle body. my father bought a new f150 in 87. 0 Zetec) The car has a rough idle (cold or hot), but runs fine. the engine has a rough idle. one thing I have noticed though is If I turn the key to run but don't start the car right away then it Idles fine or not as rough. I have a 2003 Ford Explorer that hasn't been idling well lately. My 1996 Chevrolet Cavalier (2. " I have a 2003 mustang gt and the check engine light is on say throttle position sensor and i have changed it twice. After replacing these, upon start up it rough idles and sputters pretty badly. 1994-2004 Mustang Idle Air Control Motors. Idling problems on 2004 Ford Mustang 4. 8 v6 mustang (auto): P306, rough idle, power loss, still can't find problem! About a month ago I bought an '01 Mustang with 78k on it. After a 10 miles stretch on the highway, I exit, and the idle is worse than before. Each one has a specific job to do and below are those 'job descriptions': Letter A: Power (12 Volts) Circuit. 2 V6 auto trans with 210k miles.