2002 Ford F150 Hesitation Or Stumble During Acceleration

It runs fine as far as I can tell but Im a little concerned about it. 2002 ford f-150 : not some vehicles equipped with 4. plugs and wires. Hesitating when in drive but sitting still and the belt squeals sometimes. 2l Automatic. bucking/stumble help! 92 f150 4. 0 l just bought the truck so i don't have a lot of history having a problem with the truck stalling out after after start up. Some 2013-2014 F-150 vehicles equipped with a 3. Rough idle and hesitation sounded like a vacuum problem, so I checked the TBI. Stumbles twice under heavy acceleration. Per Pony Carbs timing instruction initial advance was at 20 degrees, mechanical at 18 degrees and John told me on the phone to add more initial advance but this seemed to make the. Clunk noise when accelerating from complete stop. Anywho, here goes. You may have to register before you can post: click the register link above to proceed. Buy Fits Ford F-150 - High-Performance Tuner Chip and Power Tuning Programmer - Boost Horsepower and Torque: Engine Management Systems - Amazon. Here is everything you need to know about fuses in your Ford F-150 truck. What kind of things can I check for?. 6 Hesitation, misfire. Things were looking up: I replaced the spark plug, cleaned out the exhaust, adjusted the idle / fuel screws, and even replaced the brakes (I can stop now!). 4 loss of power when accelerating F Series Car Forums Automotive Forums. 99 Sierra hesitates during acceleration after cruising at speed for a while 14 Answers. Ford F-150 question: What could be causing loud humming noise under a 1995 ford f-150 with automatic trans? Can you answer this question?. Get the latest in-depth reviews, ratings, pricing and more for the 2002 Ford F-150 from Consumer Reports. I took mine to Folsom Lake Ford Fleet dept. Ford truck service campaign: see document search button for owner letter. 5L gasoline turbocharged direct injection (GTDI) Ecoboost engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humid or damp conditions. 2002 Ford F-150 XL 4. I took it in to Ford and the turbo was replaced as the seals were going and it began leaking oil. 2L (165k miles) Codes: P0171 and P0174 (system too lean, banks 1 and 2) Long term fuel trims are all around 30%. Buy Fits Ford F-150 - High-Performance Tuner Chip and Power Tuning Programmer - Boost Horsepower and Torque: Engine Management Systems - Amazon. Feds probe Ford F-150 EcoBoost for acceleration issues. Our 2011 Flex with the ecoboost engine is experiencing intermittent hesitation on accelerating from a stop or low speed. Imagine this scenario: Your driving along on a two lane road and you suddenly end up stuck behind a minivan that is going too slow. Many Ford F-150 pickups with EcoBoost have a condition where the vehicle shudders or stalls during normal use. If a car has a check engine light on and has P0171 and P0174 codes stored, the most likely cause is a vacuum leak. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. from home, so i drove it home with the plugged filter. a hesitation. Air Leaks Can Provoke MAF Codes and Problems. The 2015 Ford F-150 has 1 problems reported for hesitates when accelerating. - Another Honda bulletin describes the problem with hesitation or stumble under light acceleration between 1,500-2,000 rpm in the 1990-1993 Accord and 1997-2001 Prelude with a 4-cylinder engine. General Comments: I bought this truck from a ford dealer in June of '06, a used 2001 with 87k. 6L V8 Specific Topics: Rough Running Nightmare. I have a 2004 Super Crew with almost 81k miles. The contact owns a 2018 Ford F-150. First diagnose P0300 FORD code. ihave had it at the ford grarge for four weeks. Many Ford F-150 pickups with EcoBoost have a condition where the vehicle shudders or stalls during normal use. I'm not a car expert, but it almost seems like some of the cylinders aren't firing or something. The Ford F-150 stands out as a worldwide leader among full sized pickup trucks. The action was. It feels almost as if it's missing spark, but I have no check engine light on. Voltage and currents from your vehicle's battery need to be converted so that they're able to work properly with your truck's spark plugs. Then, out of nowhere, after a long idle (in gear with foot on brake, such as in a drive-thru line) my truck would start to shake. 4L Triton engine. It Hesitates When I Am Driving Around 50 To 60 Miles An Hour. Do-it-yourselfers, private businesses, and large construction companies all rely on this durable workhorse to get the job done. installed a factory tech plate mod shift kit last weekend. 6 Manual sedan with a mileage of 240,000kms and recently it has started acting up. 5-liter EcoBoost engine and 26,000 miles. 5L EcoBoost V6 engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humidity or damp conditions. Bad Hesitation Problems - posted in 80-96 Ford Truck: Well, if anyone recalls, i was having troubles with erratic idle. It will start, run about 2 seconds, then dies. Could be caused by one of the following below. Ford F-150 Engine hesitates during acceleration Inspection costs between $80 and $90 on average. The trucks stumble and stall when drivers are trying to accelerate hard, according to complaints and lawsuits. Truck Hesitates when accelerating - I can be driving down the road and my truck rides fine. General Comments: I bought this truck from a ford dealer in June of '06, a used 2001 with 87k. pcm will fully adjust during. However, engine hesitation is experienced only during acceleration, while an engine miss can be experienced both during engine acceleration and idle. any other. Page 4 Forum covers questions and discussions regarding Ford F-150, Ford F-250 Chat > Ford > F Series. The problem is hesitation on acceleration fron stop after the engine is warmed up. source: 1995 ford f150 acceleration issues i think they may have damaged the plug wire boots, take a look at them and see if the rubber boots are torn or damaged, cheap tune-up shops are famous for causing this kind of damage, there is a special tool to remove the wires which get stuck to the plugs, many young kids do the work but don't even know the tool exists. Ford F-350 Super Duty Engine hesitates during acceleration Inspection at your home or office. 2002 Ford F150 Hesitation Or Stumble During. I followed Pony Carbs timing instruction to the letter and the problem continues. When the accelerator pedal was depressed, the vehicle failed to pick up speed and stalled. It's got the 5. any other. 4L Misfire/Hesitation Issues - Hey Guys, In trying to diagnose my own misfire or hesitation issues I've been doing quite a bit of searching on this website and the problems I'm having seem to be fairly common. changed the cam sensor. 0L v8 fuel injected with 74,000 miles on it. 4L Triton engine as a risky investment but I'm here to tell you this engine can be solid. I have a 2004 ford f150 fx4 5. Happens when warm or cold. For the 2015-2017 Ford F-150, common problems range from interior mishaps to issues with functional components. I took mine to Folsom Lake Ford Fleet dept. This information may be used by NHTSA during the investigation process. Ford: if there is an intermittent lack of power, surge, or hesitation while driving the brakes will override acceleration. Very shocking because it's never done that. 5L gasoline turbocharged direct injection (GTDI) Ecoboost engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humid or damp conditions. I have been having some recent problems with my 2006 F-250 King Ranch edition. V8 Engines - 5. 6L Hesitation. See TSB (Technical Service Bulletin) reports for the 2000 Ford F150. Lack of acceleration, surging, chugging, hesitating, bogging etc. Buy Fits Ford F-150 - High-Performance Tuner Chip and Power Tuning Programmer - Boost Horsepower and Torque: Engine Management Systems - Amazon. 3) Replace the power valve. This driveability concern was due condensation trapped in the intercooler. The hesitation mentioned in this thread is specific to the 2007+ G35/37. Changed my gastank and ended up plugging a fuel filter 30 mi. It hesitates at other times while accelerating or moving from stop. The loss of power seemed to grow worse every week. 0L V6 engines for an intermittent stalling problem. My Ford F150 is making a ticking noise was created by torakitty2322 Its driving us crazy because we can hear it clearly inside the cab even with the windows up. I have a recurring problem with the engine and I've been back to the dealership three times now with no help from them. Average failure mileage is 14,500 miles. Affected owners should contact Ford and mention Consumer Satisfaction Program 13N03. The problem I'm having is a. hesitation on acceleration, intermittent loss of power, engine misses at idle etc - pointing to a vacuum leak at or near intake manifold. Perhaps the thought of a no-code driveability problem signals a difficult day ahead. Is My Ford MAF Sensor Just Dirty?. Carburetor Troubleshooting Guide. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. While the leak was present, it started knocking between 1800-2800 rpm only after it shifted to second and above. Ford F-150 2011 Ford F-150 168000 miles Exhaust Oil Loses power What does it mean when service advancetrac comes on in a 2011 ford f150 and it loses power going up a hill and doesnt want to go It is using oil like crazy but it isnt leaking or coming our of the exhaust we took it to a garage and they said its burning oil on the inside of the. This information may be used by NHTSA during the investigation process. The symptom is more pronounced when the engine is at operating temperature. 2000 GM sierra, 5. Cuts out just for a second, then resumes. Hesitation, sputtering, bogging on the Ford 4. safety standards. I checked the obvious things like a loose or missing gas cap, okay. installed a factory tech plate mod shift kit last weekend. 9L Hesitates during initial acceleration · Removing 4th spark plug on V8 · 93 ford F 150 5. Wiki User 09/01/2008. I bought a new 2011 F-150 last febuary, i now have about 40,000 km on it and when my transmission has been stuck in third gear for the last few days. U can also replace the filter for save measures. 2002 Ford F-150 xlt extended cab. My 2010 ford f 150 that I bought new in august of 2010 has stalled five different time over the last two years. Service, parts, cost & recommendations from YourMechanic. com may exhibit hesitation on acceleration and a check engine light illumination with. It Hesitates When I Am Driving Around 50 To 60 Miles An Hour. Voltage and currents from your vehicle's battery need to be converted so that they're able to work properly with your truck's spark plugs. Forums > Ford Expedition Forum > 1st Gen - 1997 - 2002 > Engine Stuttering / Acceleration Vibration Discussion in ' 1st Gen - 1997 - 2002 ' started by Snapshot , Nov 16, 2013. 0 Auto Hesitation, Sputtering, Bucking Missing When Cruising? One Problem is still getting to me and i have been searching for the last week with no real direction to go. 2000 GM sierra, 5. 0 l just bought the truck so i don't have a lot of history having a problem with the truck stalling out after after start up. It hesitates at other times while accelerating or moving from stop. Because of the important role an oxygen sensor plays in the maintenance of proper air and fuel levels in a running engine, any abnormal or faulty oxygen sensor function can create several abnormal engine symptoms. Please help. 2002 ford explorer sport trac 4x4 premium. 2L Hesitation, Surge, Cuts out, Stall Posted to Ford Driveability on 3/28/2009 15 Replies This vehicle will not accelerate at times,even in the stall unloaded. The hesitation is accompianed by a vibration. I have a 93 Ranger 2. 2000 Ford Taurus SEL (excellent car, sold to a friend) 1992 Mercury Sable GS (good car except for the tranny, sold) Current: 03 F150 King Ranch SuperCrew Other Fords owned: 02 F150 SuperCrew 4x4, 11 F150 EcoBoost, 07 Ranger, 01 F150 XLT, 98 F150 XLT, 96 Thunderbird LX, 95 Escort GT, 86 Mustang LX, 82 Mustang. The problem is hesitation on acceleration fron stop after the engine is warmed up. Why does my 1989 caprice stumble during acceleration? I have a 1989 caprice 305 5. Ford has issued an extended warranty for defective throttle body assemblies and sensors for 10 years or 150,000 miles from the data of original purchase. It's got the 5. Ford F-150 2005 F150 5. Stumbles twice under heavy acceleration. 2001 F150 sometimes has rough idle & hesitates under light acceleration, but if you mash the pedal it runs fine. 2L (165k miles) Codes: P0171 and P0174 (system too lean, banks 1 and 2) Long term fuel trims are all around 30%. Average failure mileage is 103,800 miles. i have changed pcm,plugs checked timing chain it does this worse when engine warms up. Ford has also issued a recall (04S13) for 2001-2003 Ford Escape sport utility vehicles with 3. The contact owns a 2018 Ford F-150. Your definitive guide to Engine hesitates during acceleration Inspection. It hesitates when you are pulling out of a parking lot onto a highway or accelerating after being stopped at a stoplight. Ford Truck Enthusiasts, The Internet's Leading Ford Trucks Resource, F150. 0 V6 Sputters, Bucks/hiccups, when Cruising at around 40-45 mph. Some 2011-2012 F-150 models equipped with a 3. ) I've been driving a 4. I took it in to Ford and the turbo was replaced as the seals were going and it began leaking oil. Also on the transmission dipstick it has a grid area for the fluid level but it says cold. It runs fine as far as I can tell but Im a little concerned about it. My f150 has rough idle and sputters on acceleration what is wronge (2001 Ford F-150) I changed all four o2 sensors and still the same thing i cant get a diognostic because the engine light wont stay lit but it does blink perodically then goes off it sputters bad at acceleration and very rough idle also loss of power. Engine Problem on the 2012 FORD F-150. As you found out, the symptoms you describe can be caused by literally hundreds of things. 4L Misfire/Hesitation Issues - Hey Guys, In trying to diagnose my own misfire or hesitation issues I've been doing quite a bit of searching on this website and the problems I'm having seem to be fairly common. It will start, run about 2 seconds, then dies. Here is everything you need to know about fuses in your Ford F-150 truck. A class-action suit against Ford has been filed on behalf of consumers from 14 states, including Michigan, who claim defects have resulted in problems with unintended acceleration. installed a factory tech plate mod shift kit last weekend. not accelerating when pressing the gas My car isn't accelerating when i press the gas from a complete stop i have to put it into another gear (its an automatic mind you) for the car to go and sometimes it doesn't accelerate after that and the gas peddle is hard to push, and it also jerks when i'm in the 20-40 MPH range, the engine light is on. at low rpm (truck in gear and moving) the truck hesitates, sometimes almost stalling out. Of course the problem is intermittant. Buy Fits Ford F-150 - High-Performance Tuner Chip and Power Tuning Programmer - Boost Horsepower and Torque: Engine Management Systems - Amazon. fordproblem November 7, 2014 0 Comments If you are driving a 2011 Ford F-150 , or if you are planning to purchase one, then it is important that you review reported Power Train problems and defects. Generally, it is not a serious problem but it is very exasperating when the car doesn't go although you step on the gas pedal heavily. For vehicles past this time limit, the warranty is valid until January 31, 2015. 0 Auto Hesitation, Sputtering, Bucking Missing When Cruising? One Problem is still getting to me and i have been searching for the last week with no real direction to go. 4 engine missing while accelerating? Ford's waranty dpartment has decided that yes the engine is part of the drive train, but injectors are not and. This driveability concern was due condensation trapped in the intercooler. The older VQ would typically exhibit a long crank as a CMP sensor is failing, if not it might stumble and stall randomly but a code would/should be saved. I have a recurring problem with the engine and I've been back to the dealership three times now with no help from them. Ford F-150 question: What could be causing loud humming noise under a 1995 ford f-150 with automatic trans? Can you answer this question?. In the most severe of cases, the truck will actually go into "limp mode" causing the engine to lose all power. The Ford F-150 stands out as a worldwide leader among full sized pickup trucks. Here are the most common F-150 repair problems. Ford F150 Forum. from a stop, it clunks into 1st gear, 1-2 is WAY too firm, 2-3 is perfect, but it goes in and out of 3-OD at random times. 8L Ford car (pick up, van). 96 RANGER V6 3. just found out a mouse ate into the hose for the fuel rails, debating about tearing everything off to make a permanent hose fix instead of a $ 200 new rail. In this article, I'm gonna' show you a simple but very accurate way of testing the manifold absolute pressure (MAP) sensor on your 4. 6 ONLY FORD: 2007-2008 F-150 2007-2008 F-150 vehicles equipped with a 4. NHTSA closes Ford F-150 EcoBoost acceleration probe. It hesitates at other times while accelerating or moving from stop. im taking it to the shop for waranty work today. It kinda wants to shut off which it has a few times. 0, whatever you want to call it. As you found out, the symptoms you describe can be caused by literally hundreds of things. When I went to a Ford dealer to pick up plugs he told try taking off the CAI 1st. Hesitating when in drive but sitting still and the belt squeals sometimes. See TSB (Technical Service Bulletin) reports for the 2001 Ford F150. Check the "Possible Causes" listed above. Page 1 of 3: How to Test the Ford MAF Sensor (4. From what I have read in a few places it sounds like the turbo charger(s) may be the cause. Did that put OEM air box back with new "paper" filter and WaLa! Stumble hesitation gone. Need help with intermittent engine sputter and loss of power My 1986 fuel-injected 5. Voltage and currents from your vehicle's battery need to be converted so that they're able to work properly with your truck's spark plugs. Page 4 Forum covers questions and discussions regarding Ford F-150, Ford F-250 Chat > Ford > F Series. I haggled the price down to $6000. Posted to Ford Driveability on 9/27/2010 33 Replies. i got a 390 in my 68 F-100 it starts up and everything but when i put my foot on the gas pedal, it hesitates alot like if it wants to stall before it accelerates, if i press the gas real slow it will slowly accelerate but if i try to accelerate fast, it will hesitate, i just rebuilt the carb so i have no idea whats wrong. Visually inspect the related wiring harness and connectors. Ford Expedition lean codes could caused by a leaky PCV hose. 96 RANGER V6 3. This driveability concern was due condensation trapped in the intercooler. My truck randomly stalled on me about a week ago. 2 psi on 2002 and 2003 models or 56 and 60 psi on. What will be your next ride?. sometimes it runs perfect. Ford F150 Forum. 88V or 880 mv. 2002 F150 4. The trucks stumble and stall when drivers are trying to accelerate hard, according to complaints and lawsuits. Welcome to the Ford F150 Forum - Community of Ford Truck Fans. The source of the information below is the National Highway Transportation Safety Administration (NHTSA), which maintains TSBs for vehicles sold in the United States. changed the cam sensor. Ford F-150 Stumble. Some 2013 Ford F-150 trucks built on or before 9/18/2012 and equipped with a 3. This database includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. See 2001 Ford F-150 technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area PIP-4695 Gm: loss of power hesitates on acceleration. Some 2011-2012 F-150 models equipped with a 3. but sometimes it takes entirely too long and too much gas to get it to move faster. It hesitates when you are pulling out of a parking lot onto a highway or accelerating after being stopped at a stoplight. i have a 2012 gt 6sp manual with 3. No real mods (K/N, Flowmaster exhaust). Under acceleration, there is a noticable hesitation before the power kicks in. 4L Ford Throttle Position Sensor (TPS). Below is the list of possible causes of car hesitation. Here are the most common F-150 repair problems. RPM Outlet brings you Instructions on How To do the Boost Bypass for your Supercharger Ford. You can diagnose your car problem one by one if it always hesitates. Nissan Versa Hesitation, P0705 Diagnose and fix Nisan Versa Hesitation, P0705. ) I've been driving a 4. Page 1 of 3: How to Test the Ford MAF Sensor (4. models 2011-2013 f-150. ok guys it started last night while i was on my way to work. i have a 2002 f-150 lariat that is hesitating here and there. Ford truck service campaign: see document search button for owner letter. SYMPTOM SUMMARY The engine "pings" or knocks on acceleration. My f150 has rough idle and sputters on acceleration what is wronge (2001 Ford F-150) I changed all four o2 sensors and still the same thing i cant get a diognostic because the engine light wont stay lit but it does blink perodically then goes off it sputters bad at acceleration and very rough idle also loss of power. 2L Ford F150, E150, E250). 2006 F150 5. Your path: TSB Home >> 2000 >> 2000 Ford >> 2000 Ford F-150 The following TSB(s) may apply to your 2000 Ford F-150. Whenever you run into an electrical problem, the fuse box is the first place to look. Do-it-yourselfers, private businesses, and large construction companies all rely on this durable workhorse to get the job done. Vehicle: 2001 Ford F150 4. If it's not than this means one if two things. 93 Notchback 5. power during hard intermittent stumble/misfire. Average failure mileage is 14,500 miles. Help this ones beating me down! It has a lack of acceleration and a surge right of idle. The problem is caused by the calibration of the idle air control valve and evaporative emissions system. 5L EcoBoost V6 engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humidity or damp conditions. pcm will fully adjust during. This article applies to the Ford F-150 (2004-2014). 4L Hesitation. 0 4L Engine Modifications for Ranger, Sporttrac & Explorer Welcome to Ford40. May backfire or. Car problem(s) with the 2012 FORD F-150. 2006 F150 5. Ford F-150 Stumble. Ford F-150 owners have reported 47 problems related to transmission gear slipping (under the power train category). it's not constant,mostly when i first start up in the morning idleing is rough and then smooth out. On a positive note, the Ford sealed u-joints are of a superior quality and have excellent grease installed during assembly and last for a very long time. How to Fix a Jeep Liberty That Hesitates When Accelerating If the pressure does not fall between 47. - Another Honda bulletin describes the problem with hesitation or stumble under light acceleration between 1,500-2,000 rpm in the 1990-1993 Accord and 1997-2001 Prelude with a 4-cylinder engine. Rough Idle, hesitation on acceleration, loss of power When I start the engine its starts up right away with no issues. TSB notices are issued by the NHTSA for safety-related defects or non-compliance with U. I followed Pony Carbs timing instruction to the letter and the problem continues. source: 1995 ford f150 acceleration issues i think they may have damaged the plug wire boots, take a look at them and see if the rubber boots are torn or damaged, cheap tune-up shops are famous for causing this kind of damage, there is a special tool to remove the wires which get stuck to the plugs, many young kids do the work but don't even know the tool exists. Hesitation issue in a 1994 Ford F-150 This is most noticeable during acceleration and going uphill. Also please check out the statistics and reliability analysis of Ford Explorer based on all problems reported for the Explorer. starts fine then stalls when the accelerator is pushed and let off engine sounds like it has a lack of power during acceleration also any suggestions on were to start would be wecome. The most recently reported issues are listed below. 2018 Ford F-150 First Drive Review: Powered Up It's interesting to note which gears get skipped during part-throttle acceleration—and sometimes it's several. A while ago I had a small vacuum leak which was in the line going to the vacuum canister. On heavy acceleration look at your 02 voltage with your scan tool. I was getting an acceleration stumble and hesitation. This is happening in an erratic/spasmodic manner. Below is the list of possible causes of car hesitation. The Throttle Position Sensor identifies the position of the throttle plate to the engine computer. 2000 Ford Taurus SEL (excellent car, sold to a friend) 1992 Mercury Sable GS (good car except for the tranny, sold) Current: 03 F150 King Ranch SuperCrew Other Fords owned: 02 F150 SuperCrew 4x4, 11 F150 EcoBoost, 07 Ranger, 01 F150 XLT, 98 F150 XLT, 96 Thunderbird LX, 95 Escort GT, 86 Mustang LX, 82 Mustang. 4L Triton engine. Your definitive guide to Engine hesitates during acceleration Inspection. It also hesitates/stumbles on acceleration from stop. See 2001 Ford F-150 technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area PIP-4695 Gm: loss of power hesitates on acceleration. Ford F150 Forum. Also, a clunking noise was present when the transmission switched gears and the vehicle felt different. safety standards. USUAL CAUSE Engine ping is the result of abnormally high combustion temperatures. The most common causes for backfiring during acceleration include an incorrect fuel-to-air ratio, a faulty ignition and bad wiring. I have a 1999 ford f150 4x4 and i have been having issues with hesitation When i accelerate. Very repeatable. and then the jerking happens at low rpms at all speeds but only after warmed up. Common Symptoms of a BAD Ford MAF Sensor. I am trying to tune out a hesitation in the off idle part throttle range. Problem CONDITION POSSIBLE CAUSE CORRECTION 3) Ford& Holley Only. com FREE DELIVERY possible on eligible purchases. Perhaps the thought of a no-code driveability problem signals a difficult day ahead. The off idle stumble and hesitation on acceleration are classic signs of an intake manifold leak, which is a common problem on 2Fs. For vehicles past this time limit, the warranty is valid until January 31, 2015. 5L gasoline turbocharged direct injection (GTDI) Ecoboost engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humid or damp conditions. 93 Notchback 5. Anywho, here goes. Some 2011-2012 F-150 models equipped with a 3. Even driving it runs pretty good, however when I push the gas to accelerate quickly it feels like the car hesitates or misses. Many Ford F-150 pickups with EcoBoost have a condition where the vehicle shudders or stalls during normal use. This driveability concern was due condensation trapped in the intercooler. Visually inspect the related wiring harness and connectors. 4L Triton engine as a risky investment but I'm here to tell you this engine can be solid. 4L Hesitation. TSB notices are issued by the NHTSA for safety-related defects or non-compliance with U. Intermittent Engine Stumble/Hesitation for Split Second During Acceleration Discussion in ' 5. I want to know if I can detect my engine is having hesitation/stumble. It studders! It will only stop doing this when I release the gas and then gradually press it back down. Rough Idle, hesitation on acceleration, loss of power When I start the engine its starts up right away with no issues. DPFE sensor failure is a fairly common problem on the Focus, and as more and more older foci get more and more miles, the failures are becoming a lot more common. It seems like the timing is retarded. Also, a clunking noise was present when the transmission switched gears and the vehicle felt different. a hesitation. Just noticed this in my 2002 Ford F150 Supercrew with a 4R70W transmission. It's got the 5. My F 150 Eddie Bauer short box with 351 has gone through about half what yours has since I bought it new back in Spring of 1996. just found out a mouse ate into the hose for the fuel rails, debating about tearing everything off to make a permanent hose fix instead of a $ 200 new rail. It kinda wants to shut off which it has a few times. Carburetor Troubleshooting Guide. 8L Ford car (pick up, van). be careful with your valve cover gaskets so you can possibly reuse them they are 60-80$ for one side at the auto stores, international dealer was 32$. 5L EcoBoost V6 engine may exhibit an intermittent stumble and/or misfire on hard acceleration after an extended drive at highway speeds during high humidity or damp conditions.