Mustang Sputtering Idle

Hey all, I've got a 2001, Ford Windstar LX. Hey guys, What would cause a 2002 ford mustang to sputter at 60-65 MPH? The wife's car just started doing this weird sputter on the freeway. 5, I noticed a change in the idle of my engine. Also, when at idle, the tweeters in the truck make a popping noise that is, weirdly, in time with the engine sputters. But you also need compression and the correct spark timing. Testing the Ford EGR Valve, EGR Valve Vacuum Solenoid and DPFE Sensor on Ford, Lincoln, Mercury and Mazda. if i let off, she'll roughly sputter a few times and then immediately die. Explorer, Sport Trac, Mountaineer & Aviator - Catalytic converter Red hot,car sputtering. My mustang started sputtering then died and won't start backwhat could this be? One reason why your 1994 Nissan Altima could be sputtering at an idle is because of your spark plugs. I have the engine code P0340 but both the sensors have been replaced as well as the alternator. Runs a little rough at idle, but revs up alright until it's under load, then it just bogs right out to a crawl. Occasionally it seems like it has run out of fuel and starts to sputter and sometimes stall, even with 1/2 to 3/4 tank of fuel. 5 turns and set your idle screw to around an 800 rpm idle. Here we go again. After 45 seconds to 1 minute it starts up but does the same thing again. P0171, P0174, P1131, P1151 Lean codes, sputtering, bogging, bucking, no power, PROBLEM SOLVED!! 01-01-2014, 04:38 PM I have been battling this problem with my CSVT that I recently purchased for almost a month now. Engine Hesitates, Stumbles, Lacks Normal Power The computer uses this information to determine how much fuel is needed to maintain the correct air/fuel mixture, and when extra fuel is needed if the throttle suddenly opens wide. 0L Poor Idle Quality, Surge, Cuts out, Misfire Posted to Ford Driveability on 4/1/2004 4 Replies Although the customer is not clear on when this problem started, it has been at least 6 months in and out of his and other shops. My 73 Mach 1 with 351 Cleveland is sputtering and hesitating at acceleration especially hard acceleration and at beginning of driving it at low speed. Dirty Fuel Injector Modern vehicles are fitted with fuel injection systems, which inject fuel into the cylinders to create a mix of air and fuel to burn. rough idle / sputtering at idle. One common cause of an engine sputtering is a malfunctioning battery. The "problem" resulted in me and my 3 children being stalled on a major highway. During that time it gradually loses power and starts to hesitate on acceleration, especially from idle, until it gets to the point that it behaves as tho its running out of gas, sputtering and such, and then dies. Recheck mixture screw to lean best idle again. As long as you've been paying attention, nobody knows how your engine sounds better than you do, so if it starts to sound odd or even just a little different, there could be a problem. This video will show you the solution of the running rough problem on FORD v8 and v6 motors. The service engine soon light illuminates and flashes and the engine runs rough. I took my car to the shop, and this is what was done. Common areas for leaks are between. Questions / Ford / Ford Mustang / 2012 mustang GT rough idle;. Bad Idle + Exhaust Sputtering Alright, so for the past month or so I've had an issue where if I start my car warm (after a drive to work and letting it sit for 15 minutes to have to drive it again for whatever reason) it would start up and the idle would be extremely poor. I have a Mustang 940E with the Yanmar 4TN82E diesel engine, about 1300 hours on the engine. Other things to check are, is the fuel boiling in the carb or is the gas line near hot exhaust etc?Or to look at it as a possible rich condition,is the choke. it is located after the mas so this uncalculated amount of air will cause the idle to slow down, if not even cause the engine to stall. Car ran flawlessly. To test the problem, the driver presses down on the gas peddle. Now that the roads are clear of snow and ice I can take advantage of the tunes power increases. 0 4L Engine Modifications for Ranger, Sporttrac & Explorer Welcome to Ford40. A couple of screws on the outside of the device adjust the idle and mix, both of which impact how well the mower runs. 0 V6 OHV equipped Ranger for 10 years now and am very surprised at how little info there is on the net for this engine/vehicle combination. to check for vacuum leaks, start by letting the car idle and listen for any hissing under the hood. 1968 Mustang Sputter issue. 1st Gen Durango - Sputtering, Idle Jumping, occasional check engine light - I have a 1999 5. Holley 2 barrel. Spark plugs also cause an engine to sputter when oil has come into contact with the spark plug well. Recheck mixture screw to lean best idle again. Hook up a vacuum gauge to manifold vacuum and start turning one mix screw, then the other, until your vacuum reading peaks and remains steady. Then back off your idle a couple hundred rpms and repeat the process. I recommend buying a carb rebuild. It blows out gray or white smoke when I hit the gas not sure if I’m at a standstill. This year all of a sudden the engine is sputtering after running it for like 5-10 minutesthen it progressively gets worse sputtering even more until it eventually shuts off. Replied by mrice0118 on topic Blue Smoke After Long Idle It does have a oil feed line that is under pressure, and a return line from the turbo that is basically gravity fed. Sputter, rough idle, and fuel odor Since then, it has become worse, and now there is the additional symptom of a STRONG fuel odor. 0 coupe sputters/misfires then dies: Misfire, spit and sputter at idle. , drops down to about 650-750. Also checked the fuel pressure, and maintained 10psi, I thought this was low, but was assured that it was acceptable. Ford 1999 zx2. Then it runs well. replaced fuel pump. When it is sputtering I can also sometimes feel/hear a sputtering if I depress the gas further when already moving so its not an idle only thing. The other issue I noticed is the idle speed kept dropping yesterday. If it's old, replace it. 3L equipped Ford Mustang or Ranger (Mazda 2300) can seem quite daunting since you have 8 spark plugs and two coil packs to deal with. 0 4L Engine Modifications for Ranger, Sporttrac & Explorer Welcome to Ford40. Get the engine to operating temperature. Sorry if I’m wasting your time. All engines at one time or another will have idle problems; Ford engines can have idle stumbling, surges and stall-outs, no matter what make and year. did not start right back up but after about 1 minute fired up and drove home. A sputtering car engine may be caused by one or more faulty components. Rough Idle, hesitation on acceleration, loss of power When I start the engine its starts up right away with no issues. Is that the fix itself, is it worth fixing, what is causing this problem. Idling and driveability problems can be caused by a variety of issues. There was no arcing until I pushed the top coil pack wire back on, now it seems this big arc is coming out of where you plug the wire on and arcing between the 2 coil pack plug wires. At idle it sputters and sounds more like a little boat engine to me. I have a 2003 Ford Explorer that hasn't been idling well lately. Problems with idle speed—things like slow idle, fast idle, rough idle, or stalling after idling for a few seconds—are symptoms that something is wrong with your engine. Learn how to upgrade and maintain your Mustang V6's engine and drivetrain with our articles here. Download Sputtering Airplane sounds 101 stock sound clips starting at $2. The same conditions under which the spark plug operates, along with poor engine maintenance, may foul the tip with ash, oil, or carbon deposits. Re: sputtering rough idle after engines warmed up It's just a little bit of rust and cracks around the square black parts of each coil. 7l duratec engine, with an automatic transmission, during extended idle conditions and temperature above 104 degrees, will experience a hard brake pedal. 80457S 600 CFM won't idle! I just installed a refurbished Holley 0-80457S 600CFM carburetor on my 1968 Mustang 289 with Auto Transmission and I can't get it to idle properly. 1996 Nissan Sentra, 1. Car ran flawlessly. Symptoms in order of notice: Rougher idle than before Glowing red catalytic converter after a few minutes (referred to as 'glow'). 3T hesitation / sputtering problems - figure it out = free beer If this is your first visit, be sure to check out the FAQ by clicking the link above. did not start right back up but after about 1 minute fired up and drove home. The off idle throttle response is kind of rough, as I go to let the clutch out from a stop it will stumble or sputter a bit before it clears itself and will run perfectly smooth above 1200rpms or so. 1994 mustang idle a little rough, no power, slight missfire sound. Fuel and air comes from the fuel system and carburetors. forward to May 2018. 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 sputtering/backfiring could also be caused by low fuel pressure where there is enough to run it at idle, but not enough to run it under acceleration/load. replaced fuel pump. Some of you might remember the 1966 Mustang I bought my wife for her 40th birthday last year. Last Thurs and Fri were uneventful days sputter wise. The folks at BMW/Mini that it was a good idea to have 15,000 to 18,000 mile oil change intervals. My problem is that out of the blue my. IF A MORE RADICAL CAM HAS BEEN INSTALLED, a vacuum gauge should be connected, and a reading of idle vacuum obtained. I have a 66 mustang with a 289 4. The 2012 Ford Mustang has 28 NHTSA complaints for the engine at 34,859 miles average. 1995 mustang gt 5. 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. 1994 mustang idle a little rough, no power, slight missfire sound. Sputtering over 2k rpms. 1994 mustang gt misfire: Engine 1994 mustang gt Rough idle, misfire under acceleration: Weird idle or when engine hot running. cap/rotor, plugs, wires all new within year. It has been leaking a little oil out of the air cleaner for a while. After the above repairs were complete the car was started and there is a loud squeak, knock, then a rough Idle. This seemed to happen only on cold and/or wet mornings, and the problem would go away as the engine came up to normal temperature. What could b. so i have a 2005 ford mustang v6 automatic transmission with 95k on it in florida, united states of america. It takes a few s. summary: ford 2015 mustang : bulletin information involving vehicles equipped with a 3. The problem could stem from the ignition secondary system, which includes such parts as spark plugs, spark plug wires, distributor cap and rotor. I'm having basically the exact same problem with a new Holley 4160, I just purchased on a 351 marine engine. After driving for a while (20-30 minutes) I notice it idles really fast. This page covers fuel-injected cars. P-51 Mustang Prop Plane Start And Sputtering Idle, Rev. When Just siting after that it'll rough idle occasionally and it makes a spitter noise. There may be lots of reasons a car stalls at intersections, including low automatic transmission fluid levels, moisture in your gas, broken sensors, or issues with the EGR valve. I have the engine code P0340 but both the sensors have been replaced as well as the alternator. Spark plugs also cause an engine to sputter when oil has come into contact with the spark plug well. It started to cut of on my second ride with it. idle will not raise if he have a leak at the brake booster vacuum line. What causes a rough idle? A rough idle can be caused by many different car faults. With spring fever starting to settle in here within the next few weeks. Worked fine for about a month. 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. I have this issue, when I'm in a hurry, I back out to fast and stall and then I'm stranded for 10 minutes. Made me think of carbon'ed up plugs and I dismissed it at that. also like vacuum leak. 2012 Must GT Took it up to Milwaukee last night for Milwaukee Street Drags at the WI State Fairgrounds After some good runs the car developed a studder, at idle, or any rpm depressing throttle does nothing, car just sputters, and dies. Mustang Touring Seat As for the coughing and sputtering, I can attest that the carb is all gunked up. Two week ago the engine started missing. I have the engine code P0340 but both the sensors have been replaced as well as the alternator. Buy MUSTANG IDLE AIR CONTROL ADJUSTER 1986-1993: Adjusters - Amazon. Not sure what's going on with my 2011 Hyundai Genesis Coupe. During that time it gradually loses power and starts to hesitate on acceleration, especially from idle, until it gets to the point that it behaves as tho its running out of gas, sputtering and such, and then dies. When I come to a stop the idle is off, it almost feels like it is mis firing. The car also sputters and rpm begins to fluctuate while driving. Reconnect the plug on the idle motor 7. 0 EFI motor along with other modern conveniences in to increase the drivability and efficiency. Odor smells rich. I have a rough running 289 in my 66 mustang at idle. Testing the Ford EGR Valve, EGR Valve Vacuum Solenoid and DPFE Sensor on Ford, Lincoln, Mercury and Mazda. 94 Mustang Convertible - Seat Belt Alarm Malfunctioning; 90 LX 5. base price of $35,975, including $1,195 for destination and handling. Engine power loss and sputtering 48 Answers. But now seems to have a low idle with the air off. 5 turns and set your idle screw to around an 800 rpm idle. I have received several diagnostics, and they have yet to "duplicate" the problem. What Could Cause My 2002 Ford Mustang To Sputter And Miss When I Accelerate Ther Gas. I have a Mustang 940E with the Yanmar 4TN82E diesel engine, about 1300 hours on the engine. Would that be the cause of a head gasket?. Rough idle, bad hesitation on acceleration, perfect idle with TPS disconnected (1994 Toyota Previa) Very rough idle with a repetitive cycle that is smooth for a couple of seconds then misses badly, occasionally stalling. Symptons: Once its at operation temp, the car will bog and sputter and will not hit passing gear. Rough idle. Help: Rough Idle and feels like its sputtering during acceleration. summary: ford 2015 mustang : bulletin information involving vehicles equipped with a 3. Ford Mustang V6 Powertrain Guides. The "problem" resulted in me and my 3 children being stalled on a major highway. Lots Of White Smoke Out of Exhaust Pipe. What's funny, the RPM to don't fluctuate, the speed of the car stays the same, and power stays on the whole time the car is in motion. It is running excellent so far, not a single leak 65psi oil pressure while cruising 35-40 idling and the temp is running perfectly at 180. [More on Setting Base Idle Rate:] Just adjusting the base idle by the set screw is not a good idea. The idle rpm is about 1200, I rev it for a few min. Is the fuel injector bad or clogged and. so i'm having a problem with my 1966 mustang, which is 6-cylinder (200ci engine) basically when i start the car, well, it'll start but it wont idleand i have to really stay on the gas to keep her going. I took my car to the shop, and this is what was done. I've been combing these forums for help with a rough idle and sputter at low RPMs. 2001 Mustang GT, manual trans, 163,000 miles, no significant mods. The issue was the aftermarket Alternator and worn idle tensioner bearing. Would that be the cause of a head gasket?. P-51 Mustang Prop Plane Starts with a Sputtering Idle by The Hollywood Edge Sound Effects Library on Amazon Music - Amazon. Then back off your idle a couple hundred rpms and repeat the process. Check Power Steering (PS) fluid, fluid was very low/non-existant. Some folks say it is too much initial timing, but that is backwards. summary: ford 2015 mustang : bulletin information involving vehicles equipped with a 3. Symptoms: Engine Hesitation; Lacks Power (Figure 6) Throttle Position Sensor (TPS) full range test (Figure 7). This year all of a sudden the engine is sputtering after running it for like 5-10 minutesthen it progressively gets worse sputtering even more until it eventually shuts off. Get the engine to operating temperature. cap/rotor, plugs, wires all new within year. It has been leaking a little oil out of the air cleaner for a while. My idle was so bad it started dieing on its own. Thanks for all the suggestions !! Had a buddy stop by this morning with diagnostic scanner and check for codes (there were no stored codes), and run the IAC through a diagnostic cycle (basically idled it up and down and the computer tracked the IAC through it's commands to see if it was doing what it was supposed to). P51 Mustang Prop Plan PE061701 Car Idle Sputter. when I'm WOT and pulling hard through the gears it will sputter between 3k-4k. The car began sputtering/missing again while in gear. It blows out gray or white smoke when I hit the gas not sure if I’m at a standstill. Feel free to use the following to copy and paste so we have common formate. (Page 1 of 2) CarComplaints. My 99 gt idle. Download and buy high quality P51 Mustang sound effects. Damage to the car's carburetor and vacuum hoses can cause the engine to misfire, resulting in a rough idle. To confirm settings with the engine running. This video will show you the solution of the running rough problem on FORD v8 and v6 motors. Below are the four most common. It could be a couple other things, too, but those are the most common and first things you should explore. The 2011 Ford Mustang has 4 problems reported for sputters and stalls while running. I am using timing. Took it for a test drive and the car ran a lot smoother than when I first bought it. If doing so makes the car stop sputtering, there is a problem with fuel delivery. A: Rough idle can be a gray area, and sometimes the root of the problem isn't the engine itself, but the engine mounts supporting it. This video will show you the solution of the running rough problem on FORD v8 and v6 motors. Engine Hesitates, Stumbles, Lacks Normal Power The computer uses this information to determine how much fuel is needed to maintain the correct air/fuel mixture, and when extra fuel is needed if the throttle suddenly opens wide. Immediately after leaving Auto Zone, the car started sputtering at the next stop light and the Check Engine light began flashing again. cap/rotor, plugs, wires all new within year. Possible explanations: a. It only occurs under light load, so flooring it makes it take off like a bat outta hell and it runs like a champ. I am using timing. Hi i have a 95 mustang gt. The throttle positon sensor consists of two parts: a potentiometer, and a combined idle/full throttle switch. I have a 1969 Chevy Impala. Occasionally it seems like it has run out of fuel and starts to sputter and sometimes stall, even with 1/2 to 3/4 tank of fuel. If any of these is lacking, the engine may stall. 2005 ford mustang rough idle was created by stwarrior23 So im new to this forum, but have been to plenty of mustang forums with this problem. 2000 GM sierra, 5. Just occasionally, on idle, and back at home I noticed that the coil was leaking oil. Idle BasicsAll carburetors come with a simple yet efficient idle circuit. 10-17-05 : I have an 88 Ford Ranger that keeps sputtering or missing, It just had a tune up and a new fuel filter, plugs, points, rotor and cap, thermostat and o2 sencor, the mechanic suggested that I use an injector cleaner called sea foam, and that. Poor Idle and Sputter. Any little carbon left behind will still cause issues. Generally you would see a P1233 code and the truck wouldn't start though. 1995 mustang gt 5. runs pretty well after that until recently. Possible explanations: a. I have a 2 year old Troy Built push mower 675 series. Hi i have a 95 mustang gt. then it will be necessary to install a weaker spring on the power-valve actuating-valve. When I come to a stop the idle is off, it almost feels like it is mis firing. 8, standard GT mustang (engine was changed from v8, I recently bought it just as it is now)! It has no power, it's hesitating, sputtering and backfiring when accelerating. Ok this has been going on for some time now. Bad Idle + Exhaust Sputtering Alright, so for the past month or so I've had an issue where if I start my car warm (after a drive to work and letting it sit for 15 minutes to have to drive it again for whatever reason) it would start up and the idle would be extremely poor. take a long vacuum hose put it up to your ear and search around all connections and gaskets on the throttle body, manifold be careful of moving parts you can sometime find a leak like that listen for any hissing. Last Thurs and Fri were uneventful days sputter wise. I sometimes have a sputter on cold start around 2-2500 rpm but thats here and there and its being taken care of. I have a 66 mustang with a 289 4. Not sure if related. - Mustang Monthly. The service engine soon light illuminates and flashes and the engine runs rough. The off idle throttle response is kind of rough, as I go to let the clutch out from a stop it will stumble or sputter a bit before it clears itself and will run perfectly smooth above 1200rpms or so. I have had the problem before and I think it had to do with an air valve, but that was replaced on the intake at about 30000 miles. I can drive about 25 miles to Lubbock, but I need to stop after half a mile, park it, then I can continue on the rest of the way just fine. Dirty Fuel Injector Modern vehicles are fitted with fuel injection systems, which inject fuel into the cylinders to create a mix of air and fuel to burn. Is that the fix itself, is it worth fixing, what is causing this problem. Feel free to use the following to copy and paste so we have common formate. It would drop and the car would sputter as if were going to die. The car also sputters and rpm begins to fluctuate while driving. Another reason could be a weak transmission system that misfires when the engine experiences an extra load. Is this normal? Should timing be set on max vacuum or max idle RPMs? I decided to be bold and take it to work this morning. 2004 Jetta PD TDI. also like vacuum leak. As per sstroudwku's suggestion, I ordered a used but Genuine Nissan Alternator from ebay. com : Car complaints, car problems and defect information. The problem could stem from the ignition secondary system, which includes such parts as spark plugs, spark plug wires, distributor cap and rotor. My 2005 v6 automatic mustang stalls after about 20 minutes of driving. Perhaps you have a little carbon/gunk buildup in your throttle body so that the base default settings won't work. This will be a long one. However, when placed in park/neutral, it ran just fine through all RPMs. 2L 4X4 Dodge Durango and lately it has been sputtering and hesitating a lot, it has 241,XXX miles on it. This is why once the engine is warmed up, it begins to idle and you no longer need to feather the throttle. I need help with my 1999 3. Just occasionally, on idle, and back at home I noticed that the coil was leaking oil. Ford 2001 Mustang 3. IF A MORE RADICAL CAM HAS BEEN INSTALLED, a vacuum gauge should be connected, and a reading of idle vacuum obtained. The 2012 Ford Mustang has 28 NHTSA complaints for the engine at 34,859 miles average. Welcome To V6Mustang. 0 Odd Electrical Problem; 1995 mustang gt idle i think please help; daughters car problem; Running engine to flush oil out of filter? replace the head gasket; 95 GT erradic idle/tranny problem? 03 mustang gt sputter/miss; Leaking brake line; 94 3. Also, when at idle, the tweeters in the truck make a popping noise that is, weirdly, in time with the engine sputters. I use it to go to and from school. Today I opened the hood and let the car sit in the sun, then I turned it on and I let it idle for about 5 minutes, then smoke started to come out from behind the engine. After starting, engine will not idle and dies immediately. when I'm WOT and pulling hard through the gears it will sputter between 3k-4k. A weak cylinder (power balance) can also cause a low idle. Read more Ford reviews to learn about other models. If fuel is not properly provided to the engine cylinder, it will result in a choppy engine, when the car is in idle. This year all of a sudden the engine is sputtering after running it for like 5-10 minutesthen it progressively gets worse sputtering even more until it eventually shuts off. Check out P-51 Mustang Prop Plane Starts with a Sputtering Idle by The Hollywood Edge Sound Effects Library on Amazon Music. when I'm WOT and pulling hard through the gears it will sputter between 3k-4k. I just saw your website and I really hope you can help. My idle was so bad it started dieing on its own. I have the engine code P0340 but both the sensors have been replaced as well as the alternator. I had the same problem with my 465 in my Mustang. The timing is sporadic. Terry's Talon Troubleshooting Tips #3 - Fast Idle (aka. Then back them out 1. RPMs drop and engine light is on. Recently is has acquired a miss at idle usually cold and the progressed to doing it even warm or cool. After about an hr driving it the sputtering was back. Today I replaced my spark plugs, spark plug wires,ignition coil, fuel filter and my canister vent valve solenoid. I have a rough running 289 in my 66 mustang at idle. summary: ford 2015 mustang : bulletin information involving vehicles equipped with a 3. This only happens when I have the air, or defrost on. if i let off, she'll roughly sputter a few times and then immediately die. 93 Notchback 5. Worked fine for about a month. : Fuel System Cleaners - Amazon. Idling and driveability problems can be caused by a variety of issues. 2L 4X4 Dodge Durango and lately it has been sputtering and hesitating a lot, it has 241,XXX miles on it. Its just at idle. The folks at BMW/Mini that it was a good idea to have 15,000 to 18,000 mile oil change intervals. It could need a new spark plugs. 5-2k max and then jerk back down (Lights and whatnot naturally dim and fluctuate with it, I assume because the alternator trying to stay in-line with the load. 96Z28 code P0507 idle too fast car is a 96Z28, auto, headers, The code is P0507 (Idle Control System RPM Higher Than Expected). Car starts to sputter and the RPM will jump up to 1. It is also necessary that the exhaust system have rather open mufflers. It seems like I have a loss of power when accelerating and driving around 50-60 mph at ~2k rpm. ? ok ill start up, sounds ok then when its rdy to idle like 5 sec after start it goes to reg idle and its kinda rough, i hit throttle it revs to 45 and sounds like rev limmiter. low and rough idle and stalling at complete stops. com Car Chat > Ford > Mustang > Mustang Problem Diagnosis. Car ran flawlessly. Symptoms: Engine Hesitation; Lacks Power (Figure 6) Throttle Position Sensor (TPS) full range test (Figure 7). Ford Mustang Fuel Problems car 6 cyl. The other issue I noticed is the idle speed kept dropping yesterday. Not sure if related. 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. The car idles terrible sputters, backfires, and the AFR goes from super lean (22:1) to super rich (9:1). There may be lots of reasons a car stalls at intersections, including low automatic transmission fluid levels, moisture in your gas, broken sensors, or issues with the EGR valve. The morning was cold, having the idle control was a super way to warm up the car quicker. The last couple days it started to leak alot more and the oil looks like water might be starting to get in it. I have a 2006 mustang that sputter and runs rough when I stop. It most noticible at low speeds in OD, 1200-1500 rpm and especially on a hill or under light acceleration. 1994 mustang gt misfire: Engine 1994 mustang gt Rough idle, misfire under acceleration: Weird idle or when engine hot running. It takes a few s. Holley 2 barrel. It could need a new spark plugs. Hello Everyone. Installing a pump cam is a simple matter of loosening one screw, placingthe new pump cam next to the throttle lever, and tightening it up. The issue was the aftermarket Alternator and worn idle tensioner bearing. A weak cylinder (power balance) can also cause a low idle. It works "pretty ok" until I try to load it with ~1/2 throttle. No real mods (K/N, Flowmaster exhaust). This is information on how to set your idle rpm. Engines should run smooth and evenly when at idle, never fluctuating in rpm or dying. BROWSE NOW >>>. I have a 76 250 with a 2 barrel conversion (from a pinto/mustang II) and it idles very, very smooth. 7) Check idle solenoid, especially for power/ground, replace solenoid if necessary. Feel free to use the following to copy and paste so we have common formate. It is running excellent so far, not a single leak 65psi oil pressure while cruising 35-40 idling and the temp is running perfectly at 180. 1990 Mustang 5. I have received several diagnostics, and they have yet to "duplicate" the problem. Today I replaced my spark plugs, spark plug wires,ignition coil, fuel filter and my canister vent valve solenoid. Replied by mrice0118 on topic Blue Smoke After Long Idle It does have a oil feed line that is under pressure, and a return line from the turbo that is basically gravity fed.