What this series of articles is aimed at is how to fix the most common idle problems found in the Mustang. However, the most likely causes come from the basic operating components that control fuel and ignition. Every now and then I get an extremely rough idle. Still lots of smoke and some rough idle on startup this morning. While driving. now the car idles extremely rough doesnt fix it self and stalls if I leave it still to long. no check engine light is on. the engine has a rough idle. hi all, i am having rough idle problems with my 4. These easy to install IAC motors improve idle quality in your GT, Cobra, Bullit, and Mach 1. Each one has a specific job to do and below are those 'job descriptions': Letter A: Power (12 Volts) Circuit. Car still starts and idles rough until I rev the RPM's up high. Exterior; Chrome front and rear bumpers; Conventional lens halogen bulb headlights; Courtesy lights; Gloss paint , black paint , metallic paint; Rear platform step; Heating, Venti. Circuit Descriptions Of The Ford MAF Sensor's Connector. After a 10 miles stretch on the highway, I exit, and the idle is worse than before. 2007 Ford Mustang 4. Application. Visit the post for more. Running Problems. I think that is what I am going through right now, my idle is 650 and I think I'm going to raise it to 700 to start then go from there. I have a 95 mustang v6 that I got as a project. Engine Misfire Detected on Startup (First 1000 Revolutions) What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Rough idle, loss of power 99 V6-3. now the car idles extremely rough doesnt fix it self and stalls if I leave it still to long. Symptoms of a Misfire. Loading Unsubscribe from Mike Connell? Cancel Unsubscribe. It had blown was gasket and ran rough at idle with lack of power. These looks were compiled by closely studying Ford’s officially released teaser images and video, and the resulting Mach E shows much shared styling with the Mustang. There are two strange sounds coming from my 2003 Ford V6 Mustang. Page 1 of 2: How to Test a Misfire Problem (Ford 4. 0L Power Stroke Diesel - 6. 8 products on Amazon. rough idle, changed most of ignition system can't figure out problem. Ask Question Asked 3 years, Browse other questions tagged engine ford rough-idle mustang or ask your own question. Ford Mustang Fuel Problems car 6 cyl. The Mustang’s idle strategy relies on the idle air being supplied by the IAC. 2003 ford escape no power and rough idle 3. 2003 Ford Mustang V6 3. 0 Zetec) The car has a rough idle (cold or hot), but runs fine. When I would. 3l Vortec V6 Is there a trick to getting that mean sounding rough idle out of a V8? My Silverado has that sound but it was rebuilt a few years ago and has about 455 HP, not sure what all was done to it at the time. Drive your Ford Mustang gt to complete the relearning process. i can't figure out what else could be wrong. Codes setting are 2195 & 2197, checked fuel pressure it was low-ish 24 psi. Circuit Descriptions Of The Ford MAF Sensor's Connector. Other than this everything seems to be running very smoothly. Initial start-up is rough for a period of time and will eventually straighten out. The idle air control motor (IAC) controls changes in idle caused by engine load. 2006 mustang fuse box diagram. com Car Chat > Ford > Mustang > Mustang Problem Diagnosis. It only takes a minor problem like a fouled spark plug to cause your engine to vibrate. Idles too low and runs very rough if the AC is not on. You can hear it idle and sounds like a lawn mower lol. When I crank the car it cranks fine, but now ides rough, and bogs down when accelarated. MAF and IAC Cleaning (Updated. 0 4L Engine Modifications for Ranger, Sporttrac & Explorer Welcome to Ford40. 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. Rough Idle, Black SmokeRuns better with MAF unplugged. 8l) - V10 Rough Idle - Hey Guys, I Have A 2003 F-350 With The V10. A Ford F150 Idle Control Valve can keep your motor idling at the right RPMs. While there are a variety of reasons your Ford Mustang GT 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. 8 mustang runs rough. When the PCM interprets a value that is outside of the normal specifications for a given component, the check engine light will illuminate and a diagnostic fault code will be stored. 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. Buy a new Idle Air Control Motor for all 1994-1995 Mustangs from CJ Pony Parts. Showcasing api 17344my in stock now!. 0 Vulcan Tech Lots Of Problems Solved. Have new Duraspark distributor set at 10 BTDC. Have a recent problem that's occurring on my daughters 2003 Ford Mustang V6 w/ 150K on it. I got it checked and: P0108 MAP/BARO circuit. Ford Mustang owners have reported 34 problems related to engine stall (under the engine and engine cooling category). I have a 2002 V6 auto with 55k miles and a few days ago I got the check engine light but the car seemed to be running fine. The issue is this. my ford mustang, 2007 v6 automatic has a rough idle on start up , surges and idles rough at stop , and just doesnt have the pep it did new from the factory. 8 v-6, Dies on idle!! NEED HELP!! Reply. 0 flex fuel 4wd that idles rough. Improve Engine Performance. Allow the vehicle to return to its standard idle. Since I bought the car I have done the following: 1. My idle is not as bad when the car is cold but still jummpy the idle will go from 500 to 1000+ and back down sometimes dropping to as low as 300rpm and sometimes it drops so low it dies out. I have a '04 Tundra V6, 90k miles, stick. 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. Automotive Forums. 2 V6 auto trans with 210k miles. Top 10 Causes of a Rough Idle | JL Motorworks. Reconnect the plug on the idle motor 7. I have a 2003 Mustang GT. 8L v6 in my 2003 grand Prix gt and i replaced the spark plugs in the car as well as the wires cleaned the coil pack plates checked the sensors and i still cant figure out why the car r. no one was able to resolve the problem after all these years. Hi all Have strange problem on my 2006 2. There's an uncomfortable 'pumping noise' from the SAI pump hose. So i have the 3. Anyone had problem with stalling at idle and at speed 1 Answer. Fix a surging or rough idle in your 1994-2004 Mustang with a direct replacement idle air control motor. READ DESCRIPTION This is the is the problem I have with my 2003 Mustang GT: I'm Having an issue with my cars Idle rpms. Ford 1st said it was accelerator module then when that didnt work it was the alternator sending bad signals then second alternator went in and now the dealer is working with Ford and they still havent. Cold Rough Idle at Start Up: Causes of Rough Idling During Cold … Causes of rough. Still no run or very poor idle when it will run, did a smoke test. When an IAC motor starts to malfunction, it can cause a check engine light, rough idle, decrease in fuel mileage, and poor running conditions. 0L V6 engines for an intermittent stalling problem. Put new spark plugs and spark plug wiring and new fuel injectors and putting new. 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. Ford Mustang Engine Problems told me that was a norm with the V6 Mustang, which I took as total BS. ) I've been driving a 4. 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. DO NOT ATTEMPT REPAIRS AT THIS TIME. Fixed it by disconnecting battery, cleaning MAF sensor, and checking sparkplugs. 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. Engines should run smooth and evenly when at idle, never fluctuating in rpm or dying. 8 at idle but it would sometimes drop down to -21. Also feel it buck a bit up around 40-60 MPH. The subject is a 2003 Ford Escape with a 3. These aftermarket parts are usually direct fit, affordable, brand new products. Hi guys, I have ford escape 2003 (3. The most recently reported issues are listed below. It has a rough idle at start, the check engine light is on, and the idle corrects itself usually after 20 to 30 seconds. 8L V6 Mustang idled rough so I changed spark plugs, spark plug wires and coil pack ran good for a bit and took care of some of the rough idle but now acts like there is nothing under the hood at 65 it will get up and go but anything before that it takes a while to get up the rpms and speed. 8L) (at: autotecnico-online. What is a normal vacuum reading at idle for a typical Heads/cam/intake 5. When the PCM interprets a value that is outside of the normal specifications for a given component, the check engine light will illuminate and a diagnostic fault code will be stored. rough-idle × 2. I can also correct the problem by disconnecting a vacuum line for a few seconds. If it's idling bad it will show up and what cylinder may have an issue. Chris _____. There is a shortcut called a throttle body relearn. Which lead to a complete tear down and rebuild. Though we all love our mustangs, from time to time they needs repairs that we might not know about. Sounds like bs to me, it drops down to around 4-500, then goes back up to 800. Ford 1st said it was accelerator module then when that didnt work it was the alternator sending bad signals then second alternator went in and now the dealer is working with Ford and they still havent. My 1996 Chevrolet Cavalier (2. I kept hearing her restarting the car and then finally she 2003 Mustang GT Starts, Idles Rough, Gas Kills It - Ford Mustang Forums : Corral. I've got a rough idle usually idles around 680-730rpm. Low pricing and fast free shipping on orders over $100. Buy a new Idle Air Control Motor for all 1999-2001 Cobra Mustangs from CJ Pony Parts. You can experience this when setting your timing at an idle. Components in the fuel, ignition, emission and other systems should work correctly. Genuine Ford Part. Here, in a nutshell is how the TPS on your Ford Mustang (with the 3. Replace the cranckshaft & camshaft sensors (myself) 3. Rough idle on 2003 grand am gt? Why would my 2004 Mustang GT develope a rough idle? What would cause your 2000 grand am gt to idle rough in reverse and drive but smooth out in neutral and. I bought my Altima about a year ago and always had a rough idle, it's not so bad now but I feel it and it just bothers me. ️Ford Mustang V6 V8 Mach1 Idle Issue Fixed ️Ford Idle Fix ️Ford Engine Loses Power 2003 Ford Mustang Idle Issue Fix How to fix rough idle mustang 4. 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. This is a general guide which will list symptoms for 944 starting and running problems and common causes of those problems. When an Idle Air Control Motor starts to fail, it can cause a rough idle, maintenance light, this will decrease the fuel mileage. - Mustang Monthly. 0, whatever you want to call it. what could be the problem. Why does my 1999 ford mustang engine idle rough? The 1999 Ford Mustang 3. If I rev it up it will idle very low and rough like it wants to die and ends up smelling like its running rich. problem has been going on for a long time and we can not figure it out. What is a normal vacuum reading at idle for a typical Heads/cam/intake 5. It never did this until I replaced these parts. 2005-2006 Mustang GT Turbo System by Turbonetics. Welcome To V6Mustang. Such symptoms have to be checked out, determining which vehicle components might. I have a 2003 F150 4. The subject is a 2003 Ford Escape with a 3. It idles rough upon start-up, but smooths out once the engine warms up. rough-idle × 2. it almost feels like a miss. 7L V6 Mustang Spark Plugs from Ford Dealer. The idle air control motor (IAC) controls changes in idle caused by engine load. Improve Engine Performance. com Car Chat > Ford > Mustang > Mustang Problem Diagnosis. what could be the problem. The Ford Mustang, with the 4. 8L v6 in my 2003 grand Prix gt and i replaced the spark plugs in the car as well as the wires cleaned the coil pack plates checked the sensors and i still cant figure out why the car r. At idle the ac. Anyone had problem with stalling at idle and at speed 1 Answer. " 2002-2003 Mustang-Engine rough idle with AC off" "Some 2002-2003 Mustangs with manual transmission may exhibit a rough idle condition that goes away when the AC is turned on. Problem hadn't reappeared for me yet, but it has only been a day or two so far. Circuit Descriptions Of The Ford MAF Sensor's Connector. He got a 4. The idea is to free up air-flow coming into the engine which allows your Mustang to breathe easier equating to more power. After accelerating from the first stop, there is a noticeable lack of power. Trouble code P0171, P2195 Ford Focus. 2008 F150 idles really rough codes P2195 P2197 Hi guys, I have a 2008 F150 that idles really rough when it will idle. 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. Tap the to learn more about the most common 2003 Ford Mustang problems. Finding the problem can be daunting, especially with so many sensors and switching valves involved. 2003 Mustang Convertible Power. The idle air control motor (IAC) controls changes in idle caused by engine load. Everyone has a pet fix for "running rough", but let's first determine the nature of the issue. after 5000 miles it developed a rough idle. APDTY 112537 Electronic Throttle Body w/Actuator & IAC Idle Air Control Fits 2011-2012 Ford Edge / 2011-2013 Ford Explorer V6 / 2013 Ford Flex V6 / 2011-2014 Ford Mustang V6 / 2011-2013 Ford F150 V6 / 2013 Ford Taurus V6 / 2013 Lincoln MKS MKT MKZ V6 Revi. Letter B:. 8l vibration It's strange that the RPM gauge didn't immediately start working, when you started the car. 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. Although generic, the specific repair steps may vary depending on. The idle air control motor, also known as as idle air control valve, is the solenoid that bolts to the throttle body that controls changes in the idle depending on engine load. 6 v8; 2004 Ford Mustang Estimates. I cannot have this thing die on me while I'm 300 miles from home =(At stop lights the car will have a rough idle while in park and reverse. Genuine Ford Part. Rough idle, loss of power 99 V6-3. Free Shipping! Click or Call 1-877-578-2433. 2007 Ford Mustang 4. 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. My 94 Mustang 5. Nothing major, but kind of would like it to stop. Here, in a nutshell is how the TPS on your Ford Mustang (with the 3. The parts and labor required for this service are. Replied by K24A4 on topic 2000 Ford Mustang 3. Turn off the engine. I have a 2003 F150 4. Other than this everything seems to be running very smoothly. 7L V6 Mustang Spark Plugs from Ford Dealer. If I rev it up it will idle very low and rough like it wants to die and ends up smelling like its running rich. There is a lack of power and sputtering with a miss when driven, most of the time. It seems like a long and complicated list doesn't it? Well, don't worry one of the most important things you need to successfully diagnose the misfire or rough idle on your 2. Rough idle, loss of power 99 V6-3. I have changed spark plugs, wires, air and fuel filter. This information is from various sources, like my experience, AFM, the Ford Fuel Injection Book, other site members experiences. Idle mixture is set correctly. Ford Mustang Crankshaft Position Sensor Replacement costs between $106 and $665 on average. Ford Mustang Engine Problems. If you're looking to boost the power output on your Mustang, one of the first mods usually is a Cold Air Intake. The idle air control motor, also known as as idle air control valve, is the solenoid that bolts to the throttle body that controls changes in the idle depending on engine load. When an Idle Air Control Motor starts to fail, it can cause a rough idle, maintenance light, this will decrease the fuel mileage. Replied by K24A4 on topic 2000 Ford Mustang 3. problem has been going on for a long time and we can not figure it out. When i am driving and shift neutral and come to a stop it will 2000 Idle around 2000 rpms until im stopped for a few seconds. 0L V6 engines for an intermittent stalling problem. Rough Idle When Starting Cold, Then Goes Away When Engine Is At Operating Temperature More Details Below I have an older, low mileage vehicle with a V8 engine. When this happens it is sometimes necessary to perform an idle relearn to once again teach the car how to idle correctly. Problem hadn't reappeared for me yet, but it has only been a day or two so far. 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. I pulled out my SCT tuner and plugged it into the ODBII port and it gave me the P0300 code. Today you can still net yourself a decent one for under $5,000, but chances are it needs some help. 04 GT New intake manifold and car now has a rough idle: 2003 Ford Mustang V6 3. AC Recharge. Average repair cost is $350 at 49,250 miles. Other than this everything seems to be running very smoothly. 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. 0l? I have to give my car the "anti-idle surge vacuum leak" and it reads 14 inches at idle, and 16 inches with the leak plugged, surging away. Ford Mustang owners have reported 34 problems related to engine stall (under the engine and engine cooling category). Now, it idles rough. Today the check engine light started flashed and car felt like it was misfiring causing an extremely rough idle. These easy to install IAC motors improve idle quality in your GT, Cobra, Bullit, and Mach 1. In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register. When cold, it idles fine. Sister site MachEforum has posted these digital previews of the upcoming Mach E, Ford’s first fully electric vehicle. 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. Mustang idle surge and base idle reset EGR Valves, Idle Air Bypass solenoids and Throttle Position Sensors are common causes. 2003 Ford Focus SE 2. P65Warnings. 2001 Ford Escape Rough Idle @ Cold Start - Engine Feb 06, 2009 · 2001 Ford Escape Rough Idle @ Cold Start V6 with 130k miles, starting the engine below 35 degrees F will promptly start, idle rough & stall if you … 2001 Ford Escape rough idle when cold - YouTube Nov 06, 2012 · Only does this when cold. 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. Engine is rough at that idle of 500-550 rpm. 2003 Ford Mustang V6 3. 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. Idle Control Valves are required to ensure standard engine idling speed. READ DESCRIPTION This is the is the problem I have with my 2003 Mustang GT: I'm Having an issue with my cars Idle rpms. anybody else have the same problem? any suggestions would be apreciated. If it's idling bad it will show up and what cylinder may have an issue. 2003 V6 mustang idles irratically and dies at stops. Park the vehicle and set the parking brake. Changed fuel pump & filter this brought the PSI up in the range of 34-49 psi. Rough Idle and Almost Dies After Warmed Up: Gallie:. When I put the car in neutral the car runs way better and revs to about 1000 rpm, when I but it in gear it runs to about 750 rpm in idle and idles a really rough. 2007 Ford Mustang 4. 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. Needs lower gears, exhaust upgrades, larger throttle body and mass air, bigger fuel injectors and a 2200+ stall with automatics. Engine Misfire Detected on Startup (First 1000 Revolutions) What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Research, compare and save listings, or contact sellers directly from 70380 F-150 models in Independence. Fit was a little snug on one of the bolts, so easing both bolts at the same was what I had to do. i just rebuilt the carb, but that didn't help. Letter B:. My 1996 Chevrolet Cavalier (2. I wasn't sure if it was the transmission, brakes, or what. Have a recent problem that's occurring on my daughters 2003 Ford Mustang V6 w/ 150K on it. I know that this has been a plaque for some mustang owers. You can hear it idle and sounds like a lawn mower lol. It was a cylinder 3 misfire. If the code comes back you may have to replace the Electric Throttle Control Actuator (Motor) to repair the problem. so i have a 2005 ford mustang v6 automatic transmission with 95k on it in florida, united states of america. 8 and car would stutter a bit. A guide for consumers having problems with their GM intake manifold gaskets or coolant leaks in 3. Though we all love our mustangs, from time to time they needs repairs that we might not know about. When warm and you come to a stop (it's a 5 speed so I'm in neutral or the clutch is in) the RPMs will drop to about 500 and the car will shake, but only for two or three seconds, then the RPMs come up to normal, and the car idles normally, but quite a bit rougher than when it's cold. You can hear it idle and sounds like a lawn mower lol. Then let it idle for 10 minutes with and 10 minutes without heat on, then drive it. Still lots of smoke and some rough idle on startup this morning. i did a little searchin around and gathered possibly fuel pressure regulator/sensor (idk fer sure) or prolly cp3 pump. My dealer changed the fuel filter and then told me that my problem was a leaking valve cover gasket that had allowed oil to foul the plugs, ruin the plug wiring, and ruin the serpentine belt. Car will shake. When I first start the truck up in the morning, it will idle rough for about 20-30 sec, then pick up idle, and idle smoothly. I have a 2010 XLT explorer 4. Recently my car has been having a rough idle and stalling on start up. So i have the 3. - Alright I have a 2005 F250 6. The stalling typically occurs while decelerating at speeds below 40 miles per hour. Or, you have a vacuum leak. Classic Industries offers a wide selection of 1990 GMC Truck parts, including 1990 GMC Truck interior parts and soft trim, 1990 GMC Truck exterior sheet metal, 1990 GMC Truck moldings, 1990 GMC Truck emblems, 1990 GMC Truck weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. 8V6 turbo automatic in that on start up she has started to idle roughly for a few minutes but then runs fine. rparker_spam [email protected] I put some Dura Lube severe fuel system cleaner last time I filled up completely to try and clean injectors to see if maybe that was the issue. Even though the timing has nothing to do with engine run-on, (because the key is turned off and "ignition timing" is no longer in play), timing DOES affect the engine's idle when it's running. If I rev it up it will idle very low and rough like it wants to die and ends up smelling like its running rich. Put new spark plugs and spark plug wiring and new fuel injectors and putting new. Ford Mustang Engine Problems. 0's, i got a really rough idle in mine, it almost feels like a misfire. Shop Ford F-150 vehicles for sale in Independence, KS at Cars. 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. The next morning, she was a little hesitant on start-up, but ran rough with no stalling — and no Check Engine light. Each one has a specific job to do and below are those 'job descriptions': Letter A: Power (12 Volts) Circuit. Have one slight vacuum leak on the front carb at the throttle plate shaft -- otherwise, no leaks. Idling problems on 2004 Ford Mustang 4. 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. ENGINEERING IS INVESTIGATING. 8 v-6, Dies on idle!! NEED HELP!! Reply. The Idle Control Valve is an imperative component which continues a sleek idle rate for the vehicle's motor and is typically changed by means of the car's CPU. Ford 1st said it was accelerator module then when that didnt work it was the alternator sending bad signals then second alternator went in and now the dealer is working with Ford and they still havent. what could be the problem. This forum is for commercial members to post their Mustang related information. 2001 Ford Escape rough idle when cold. 8L gets around 12mpg and seems to shake a bit when started cold and has a bad rough idle when warm Rough Idle/rough Acceleration After Warm-up Engine Low/rough Idle At Warm Start. Follow along in the video as Jmac walks you through the process of removing and installing a new TPS. 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. The problem is caused by the calibration of the idle air control valve and evaporative emissions system. I read on another forum that is was a big problem on 97's. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. Press question mark to learn the rest of the keyboard shortcuts. Put new spark plugs and spark plug wiring and new fuel injectors and putting new. So I moved coils back to original location - got P0302 again. Overview If you've stumbled upon this site, you probably own a 2001-2004 Ford F150 with the 4. It idled pretty rough when I bought it, but replacing spark plugs fixed it- mostly. 8l) - V10 Rough Idle - Hey Guys, I Have A 2003 F-350 With The V10. I have a code on my mustang throwing a misfire in cylinder 3. 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. Here, in a nutshell is how the TPS on your Ford Mustang (with the 3. Timing tensioner?. 0 flex fuel 4wd that idles rough. My 94 Mustang 5. i changed out air filter and spark plugs. Solving your idle problems part 2 - Cleaning your throttle body: In part one we covered the most common problem that will cause idle problems, the IAC, but there is an often overlooked area of the intake tract that also regulates how much air enters the engine. I have a 03 ford focus with 180,000 miles on it, recently when I stop at a stoplight with it in gear it wants to idle rough and almost dies, I replaced the spark plugs, new fuel filter, new air filter, and that didn't help. It is attached to your plennum either bolted on or its attached with a hose. This covers year models 1986-1993, and 1994-1995. Crower Camshafts and Springs for your 2003-2004 Mustang Cobra at RPM Outlet. 6L V8, my problem is my engine feels like its misfiring on idle, it idles smooth then once in a while totaly random it feels like it twitches, besides idle the car runs great, Only codes ive gotten is running lean on both banks, everytime it comes up I do something to fix what might be causing it clear the code and sometimes it takes a whole. This company is not yet accredited. I was having trouble with rough idle and was getting a lot of oil. I got it checked and: P0108 MAP/BARO circuit. Tap the to learn more about the most common 2003 Ford Mustang problems. Quality Archived Posts and FAQs.