Some 2009-2010 F-150 vehicles equipped with a 2 piece driveshaft only and built on or before 12/1/2009 may exhibit a rear driveshaft slip/bump concern on light to moderate acceleration from a stop or when coming to stop with light braking. Apr 9, 2016. This what we have found. I have a 1999 Mustang with a V6. 9. Getting Started - Prepare for the repair. same problem 2007 5.4L 3v F150. I have been having some issues with my car. What seems to make the problem better or worse? blog down. V8 GAS SOHC Naturally Aspirated 3.8L V6: 2004 Ford Mustang : 3.9L V6: Show More. 1997 - 2003 Ford F150 - Hesitation at around 45 to 50 MPH when you go to accelerate - Hello, I started getting a hesitation/bucking in my 2001 F150 SCREW 5.4L 96,000 Car begins to sputter/shake back and forth and hesitates randomly when im driving and looses acceleration. You can easily check for this condition with a vacuum gauge. One or more misfire codes (P0300-P0306) will be stored in your Ford's PCM memory. 2004 Ford Mustang : GT Equipado Coupe 2-Door: 4.6L 281Cu. 03 GT convertible, 27K miles. Maybe even bad injectors. My 95 mustang gt has a rough idle and slight hesitation when accelerating. Thread starter joshmlewis; Start date Jul 19, 2010; J. joshmlewis 2015-2016 3.5L V6 EcoBoost. Hesitation On Acceleration Problems. But once you stop, shut the engine off, and come back to restart it while the engine is still warm, it'll misfire/run terribly. You lose engine power particularly while acelerating into midband. I am trying to tune out a hesitation in the off idle part throttle range. The individual flow characteristics are the same or superior to the OEM and may help acceleration and throttle response. It idle a little rough and it boggs down when accelerating. Terminal Type: Blade. I notice a coolant leak coming from either the water pump gasket or manifold gasket I've been experiencing a hesitation also, but not quite like yours. hesitation in acceleration, 2003 Mustang GT. Search: Acura Mdx Acceleration Hesitation. Only happens under moderate acceleration and is much more noticeable going uphill. When one or more cylinders stops firing, the power cuts, and the vehicle hesitates under acceleration. 104,000 MILES. See all problems of the 2016 Ford Mustang . Open the Hood - How to pop the hood and prop it open. Ford TSB Article # 04-15-6. The problem often means the air/fuel mixture is not being properly enriched or is going lean, or the ignition system is weak and is misfiring when the engine comes under load or the air/fuel mixture goes lean. I may not keep it in the lower gears long enough for it to occur. 2005 Ford Mustang 4.0L SFI SOHC 6cyl Ford Mustang 1999-2005 Alternator - Removal & Installation 3.8L And 4.0L Engines. I have a 2001 V6 mustang coupe, approximately 80k miles, automatic. 50-State Street Legal: this intake kit is 50-State Street Legal and CARB Approved under EO# D-609-17 for 2015-2016 F150s only. MY 2007 F-150 XLT 5.4 litre hesitates on acceleration up to about 10 MPH. Truck Hesitates when accelerating - I can be driving down the road and my truck rides fine. 3. The Fix: Replace the air filter. Joined May 31, 2004 push on the gas and I start accelerating, and then while im accelerating, it hesitates for a second or two, and then keep on accelerating, while im on the reflashed the pcm with updates and there is a significant difference initially. Sometimes hesitation is caused by an air intake issue or vacuum leak. It will be a faint sound when the car is idling in park mode, but the volume and frequency will increase in proportion to acceleration. If the regulator has failed completely, the vehicle will crank, but not start at all. This valve helps the vehicle The ignition wires may be bad. Top 10 Reasons Your Car Hesitates When Accelerating or Driving. Move the stick into first gear and ease onto the gas pedal while at the same time slowly releasing the clutch pedal. Overall my 2011 V6 Mustang with automatic transmission is a really fine car EXCEPT for the 1-2 second hesitation when trying to accelerate suddenly for passing or entering a highway. The 3.8 liter engine was used from 1983 to 1986, it was then dropped from the Mustang line. 4.6L Mustang Forums (1996-2004) 4.6L Tech. P0302 Cylinder #2 Misfire. This also happens when I have the cruise control on Accelerating. Hasn't stalled when this happens yet. No codes are being thrown. Reply. It is especially noticeable under light acceleration when the engine hasn't fully warmed, and Write a Review. I own a 2003 automatic V6 new edge mustang with 148,000 miles, and recently I drifted it and muddy water got all up under and inside of everything frying my Asked by PoppaQ Mar 06, 2007 at 11:21 AM about the 1995 Pontiac Grand Prix 2 Dr SE Coupe. Add Fluid - Determine correct fluid type and add fluid. if driving at steady speed is fine go tostep on peddle Other times it can be caused by an exhaust restriction. Rough Idle. Chicago, IL: Consumers from 14 states have filed a federal class action today against Ford Motor Co. in connection with alleged defects in Ford's vehicles causing and failing to prevent the unintended acceleration of those vehicles. Close. The spark plugs may be dirty or worn. Only show this user. #1. I have the Ford ESP warranty. 2004 FORD MUSTANG. Change it out, rule it out. If the results are a-ok then move onto injector balance test. This indicator is a vague symptom, as it could also point to a variety of issues, but you can expect to see it if theres any issue with your throttle position sensor. My rmp I notice it jumps from one - two when idling. I've recently been having a problem with the car while accelerating up hill, say for A lot of Nissan's use these stupid sensors (both driver's side and passenger side) they are like $40-$50 bucks and easy to replace. Codes: 2004 Ford Mustang. It is stock except for a CAI I installed. The misfire is causing the hesitation; you just need to find out what's causing the misfire. 1994-2004 V6 Mustang Tech . The most common reason a car is losing power when accelerating is due to a clogged fuel filter or engine air filter. The most common symptom is your check engine light. Jump to Latest Follow Status Not open for further replies. The first step is to check your Ford Mustang fuel filter. The 3.8 L Essex V6 replaced the 3.3 L I6, as the 3.3 L engine had little demand and was dropped after 1982. Save Share. Any suggestions? Click to Enlarge (1 Reviews) 5 Stars. Hesitation acceleration. No check engine lights coming on or anything. Try changing up your driving style to check the car's That's what she said. On the highway doing 70 or 80 its just find. Lots of folks lately with Holley issues. So now I have to look at something else. Strong vibration, low power, hesitation, flashing CEL. It reappears as a Mustang engine in 1994 and is used until 2004, replaced by the 4.0 liter engine in 2005. This At WOT sometimes it feels normal, sometimes the truck feels like a 4 banger instead of a supercharged v6. The suit seeks compensatory relief on behalf of a proposed class of potentially millions of purchasers and lessees of Ford vehicles M. 2011-2014 Mustang GT 1996-2004 Mustang GT 2011 Higher mileage vehicles tend to have overheating issues caused by a stuck thermostat, and the Mustang is no exception. Asked by tomgee in Plainview, NY on April 22, 2011. i have a hesitation or bucking when accelerating. Search within r/Mustang. 3. The thermostat is a AdamDH. same problem 2007 5.4L 3v F150. I ran tests and the codes 172, 176, 181, 189 and 543 came up. A vacuum gauge will make things rather cut and dry. Fitment: 2015-2021 F150 2.7L EcoBoost. Electric choke works great, after the choke comes off and the car idles at 800 rpm glass smooth. Ford will notify owners, and dealers will inspect the driver and passenger air bag module, and replace either the module or the inflator, if necessary, free of charge. It goes away quickly but is irritating. It seems like I have a loss of power when accelerating and driving around 50-60 mph at ~2k rpm. Piston #6 is not firing properly. 2)When I accelerate from a Check Level - Insert dipstick and pull it out to determine level. With 1994 to 2004 V6 Mustang models coming equipped with OBD-II (On-board diagnostics), various engine 2002 FORD MUSTANG. Engine hesitation, almost by definition, usually goes back to a misfire in one or more of the cylinders. Problem Description. It has been getting progressively worse over time. Here are my symptoms: 1)When I turn on the car and immediately start heading out, it's bucking. 2. Similar to another message2004 Grand Am 3.1 6 cy Auto, 36000 miles; tends to hesitate as in misfire (or so it seems) when the engine is cold. DaveJM on . 2WD. Whenever I am cruising at 50-60 mph and I accelerate just a little to go about 5mph faster my car hesitates. Engine power loss and sputtering. I already changed the 02 sensors. The fan also run continuously when car is running but I think that is another problem. Hello all, Have a 66 with a 289 and I'm experiencing hesitation when accelerating. '67 Mustang Convertible - gone 01/17 '14 Chrysler T+C - Wifey's hauler! Posts: 1. v6 engine problems rough idle engine boggs. Warranty Information: AIRAID backs all of their filters with an exclusive "No Hassle" warranty. Starting about 5,000 miles ago I started to notice a problem. It o-nly hesitates , like when i 4) Faulty Ignition System. These are the most common types of causes of this type of problem, but far from every possible reason. reflashed the pcm with updates and there is a significant difference initially. NOT gt. Sent from my iPad using Mustang Evolution. It can also be caused by a damaged sensor disturbing the air-fuel mixture like the MAF sensor or O2 sensor. P0304 Cylinder #4 Misfire. I have severe hesitation when begin to accelerate up until around 2500 rpm (sometimes a popping noise, backfiring, up around the air intake), a loss of power, running very rich. You should see at least 18 in-Hg at idle (expect more along the lines of 20-22 in-Hg). Question type: Maintenance & Repair. Also, see repair breakdown by problem area and cost. If you let the engine cool off completely and restart it, it's fine again. 2004 Ford Mustang GT- The Driver-BBK These are all basic to Ford Mustang fuel pump problems. Hesitation is when your engine misfires, stumbles or lacks power when you accelerate or step on the throttle. 3) Faulty Fuel System. The Jeep has always had great acceleration on the highway. Follow the Service Procedure steps to correct the condition. It seems it hesitates between 2000 and 3000 RPM. #1. SOURCE: how do I change a 2005 mustang alternator? Make sure to perform this transition smoothly, or else the car will jerk really fast. I can get 20" hg at idle, steady gauge with no fluctuation. #2. Found the internet! It competes with a variety of luxury three-row family crossovers including the Infiniti QX60, Lexus RX L, Buick Enclave, Mazda CX-9 and the Lincoln Nautilus SH-AWD is always on, and requires no driver input 5-liter V6 to Rolling at 10 mph then try to accelerate slowly to 15-20 mph there is a hesitation or flat spot We have made numerous Some 2001-2003 Mustang vehicles, equipped with TR36505 speed manual transmission may exhibit a clash noise and/or a raspy (rough) feel on gear engagement during 1-2 or 2-3 shifts. Its gotta be a fuel filter problem, or throttlebodie, or a sensor, OR you need to run some fuel injector cleaner in the gas tank, likely Brand new Kumho's so it's not wheel balance. September 04, 2017. In other words, during the exhaust stroke the exhaust gasses will not flow properly because of excessive exhaust backpressure. For the last 2 weeks, my 2001 Mustang V6 147,000 miles has been intermittently hesitating in all but low gears. During warm up and - Answered by a verified Ford Mechanic i have a 2004 ford mustang with 3.8 v6. I have been having trouble with my 95 Mustang. I've got a 2001 with 3100 miles on it (got it about 5 weeks ago). reference Ford TSB 06-19-3. the TSB applies to the 2006 model but actually works for 2004-2008 similarly equipped. If you experience difficulty starting the engine when cold, stalling at idle, or hesitations during acceleration, it may be the idle air bypass valve. While some MAF sensors can be cleaned, others may need to be replaced if they fail. For example, fuel pressure needs to be in whole numbers, not 40.01785 (40 with 5 decimal digits). MAF counts, RPMs, spark, spark and so I'm wondering what I 3 Hesitation and misfiring. P0300 Random Cylinder Misfire. Step 3 Inspect thermostat. Sep 27, 2004 2004 Mazda 3s 2005 Ford Mustang V6 5spd 2003 Toyota 4runner Sport V6 4x4 2002 Toyota Camry XLE 2006 Toyota Tundra SR5 4x4-Sold See real-world 2011 Ford Mustang transmission problems and repair histories as reported by other 2011 Ford Mustang owners. This article applies to the V6 Ford Mustang (1994-2004). It does it most often when you are barely on the gas at 45 to 50 MPH and then you press the gas to accelerate. Okay so heres the situation, a couple of weeks ago I was on my way to get gas and before I got to the gas station (a few blocks away) my car We have done an engine test and it shows at acceleration it boggs down at 3/4 of max torque or speed. 145566. 1,374 Answers. reference Ford TSB 06-19-3. the TSB applies to the 2006 model but actually works for 2004-2008 similarly equipped. If 105 MILES. Here are the most common cause of acceleration with the RPMs going up: 1. The problem started with the Jeep failing to accelerate. This information is used by the engine computer to determine the amount of fuel that should be delivered for maximum efficiency and power. 8 people reported this problem. Dec 30, 2006. I have 2001 Pontiac grand Prix she sometimes hesitates.. when. Ease off the clutch and onto the gas when shifting gears. Precisely! Manual transmission, clunking and knocking from clutch while driving, will not engage into gear smoothly, locked out of gear during acceleration, knocking from transmission when shutting vehicle off, jerking and hesitation when accelerating at low rpms, intermittent vibration when decelerating,. 1) Bad Throttle Position Sensor. Or when i want to step on it a little bit, thats when it hesitates. The Fix: Replace spark plugs. 4. This can cause a very uneven idle, which can jump up and down, and the engine may also shut off on idle. I have a 3.9L 2004 V6, automatic. 2002 Ford Mustang 6 cyl Automatic 101000 miles When accelerating from 20-40mph my car hesitates badly like it doesnt wants to go, after 40mph it drives smoothly with no problems. Jun 10, 2003. 2) Vacuum Leak. User account menu. Jump to Latest Follow 2004 GT- K&N CAI, 15% Tint, Borla Catback. Pay attention to the jerky motion of the car. Every once in a while, it'll temporary resolve itself once its started misfiring. The mustang idles great. Never had any hesitation at the throttle in drive, only at a stop and take off. The Ford Essex V6. Mine happens quickly and ends quickly when accelerating from a stop. Only show this user. Archived. My 2004 v6 mustang has been having trouble lately. 2011 Ford Mustang 2dr Coupe. 5. It could indicate the last stage of the converters life. P0303 Cylinder #3 Misfire. The carb I am using is a NOS Holley 9834-1 Here is what happens: Car starts fine hot or cold. Condition: New. Starts to drop low, then revs high, then low, then higher before settling in. 2011 Toyota Camry V6 Below is a list of symptoms that your car may show, that tells you it could be a dirty MAF sensor issue. V8. This valve helps the vehicle idle steady when the accelerator pedal is not pressed. Just 40 psi is easily read and understood. A bad torque converter could be the origin of rattling sound when accelerating at low speed. The car also sputters and rpm begins to fluctuate while driving. Already have new plugs, as the old were horrible. My guess is the fuel pump or fuel filter. Brock 3886-1023 Fuel Pump Assembly . The Ford Mustang's MAF or mass air flow sensor measures the rate at which air enters the engine. When the engine is running I experience a constant spike in rpm's. Popular Answer. I think I have 2 seperate problems, surging under light acceleration, and a nasty vibration which feels like it is coming from the rear end at about 1500-1900 RPM. 56k miles. Step 1 Take a detailed test drive. I have a Mustang 1992 in a problem. Hi all. An engine that hesitates when accelerating is either sucking too much air, not getting enough fuel, or misfiring. Posted by 8 years ago. The check engine light flashes on and off when the engine is experiencing the misfire. Took it to the local Ford dealer, Riverside Ford in Sumner, WA. If I wait a couple minutes before heading out, that doesn't happen. 5) Dirty Fuel P0305 Cylinder #5 Misfire. Log In Sign Up. 1 - 8 of 8 Posts. If the slipping is caused by low fluid, it will get worse as the transmission gets hotter. The transmission may also exhibit a jump-out from 2nd and/or 3rd gear. Sometimes, the engine will misfire on idle also; your engine sensors will get faulty values, and the air-fuel mixture will get messed up. P0301 Cylinder #1 Misfire. After checking for vacuum leaks, bad spark plugs, changed fuel filter, Do a cylinder leakage test to test for vacuum leaks. In. MEMBER. Gets about 25-30mpg in town. You basically rev and hold the engine to about 2000 rpm. Transmission Fluid Low. Any advice for a novice? 1997 - 2003 Ford F150 - Hesitation at around 45 to 50 MPH when you go to accelerate - Hello, I started getting a hesitation/bucking in my 2001 F150 SCREW 5.4L 96,000 miles. If you have an automatic transmission and it "slips" while you are driving itthat is, the car engine revs without the power going to the wheelsthe most common cause (though not the only possible cause) is low transmission fluid. Sep 30, 2004. Here's what you might discoverand what you can do to fix the problem: Dirty air filter. Ever since I got it, I've noticed that the car hesitates to accelerate while in 3rd gear. In the event your Ford cranks easily, but doesnt start within the first five or six revolutions of the starter motor, you may have a faulty fuel pressure regulator. 3. D. Remove Dipstick - Access point for transmission fluid. Re: My 2004 Mustang is sputtering when I accelerate. Hesitation On Acceleration Problems . Occasionally when I'm accelerating (generally I just slowed down in 2nd or 3rd, for example, then accelerated And I still have hesitation when accelerating. 2. 2004 Ford Mustang : 3.9L V6: Show More. Like if you are rolling at mid-high twenties in third so around 2 If the accelerator is slightly depressed while the car is running and it lags, Excessive noise and hesitation when accelerating are also symptoms of a failing fuel pump. Next, any unusual changes in your acceleration could be linked to this sensor. Shipping Options: Free Ground Shipping $ 28.95 . MANUAL. Passenger side usually is the culprit first. Hesitation and misfiring. 305-horsepower 3.7L V6 6-speed automatic RWD. Has new carb, plugs, fuel filters, good gas, etc. Hi our son has a 2002 ranger edge which is maintained pretty well. Problem Description. If I was driving 65-70 and wanted to pass I could simply floor it and the Jeep would quickly accelerate without hesitation. Hop in the Mustang and drive it in a way that gives you as much data as possible. This happens in open road and in turning with acceleration. r/Mustang. If your Mustang is too low on transmission fluid, itll will no longer be If you experience difficulty starting the engine when cold, stalling at idle, or hesitations during acceleration, it may be the idle air bypass valve.