N54 jerks when accelerating

Privacy Terms. Skip to content. Quick links. Manufactured from to I've got a d coupe just coming up to 58, miles service light has just come onrecently I've been getting a problem. When I change gear up or down and start to accelerate nothing happens for a couple seconds then the car jerks and accelerates away fine, happens through gears 2,3,4,5.

It's not all the time but it is becoming more frequent. I've tried to do some research but thought the best way would be to ask people on here, any advice is much appreciated. Now: i with even more goodies Gone: i with goodies. Last edited by nickfrog on Fri Aug 08, pm, edited 1 time in total. The engine may miss, hesitate, stall or just generally seem to run poorly if your car has a cracked intake manifold. Sounds like I get the same issue, always immediatly after an up shift, almost like a pause before the power is engaged.

n54 jerks when accelerating

Like you said in your post it doesn't happen all the time and doesn't seem to be getting any worse or more frequent. No idea what it is but don't think it's a cracked intake manifold as I would expect that to cause problems throughout the rev range rather than only after an up shift. Interesting I've never noticed mine happen on a down shift. No idea how I didn't manage to find that on the net before lol Been annoying me for a while, only fault with an otherwise great car.

Fairly easy to remove if you want, it's usually most noticeable in the lower gears. Board index All times are UTC.I have a BMW i, model. Today when I left for work it felt like the engine was sputtering a little. I noticed if I accelerated very slowly and evenly it wasn't too much of a problem. But if I punched it to try to accelerate normal to fast, then it would "sputter" and "kick" possibly while going between gears. I got out on our highway where speeds are 65 to 80 mph.

It stopped as I leveled off. I'm out of warranty so I'm trying to see if this is something simple or to know what I may expect at dealer.

Now a "drivetrain malfunction" warning has come on saying to drive moderately as full drivetrain capability is not possible. But yes, the ignition coil is your first bet for misfires. It should be in the hundreds, but I highly doubt it is. You should see CEL for fuel injection problems. Defected Ignition coil is a common cause and it should take no more than minutes to replace it yourself. See the video:. Update: Now a "drivetrain malfunction" warning has come on saying to drive moderately as full drivetrain capability is not possible.

Over the phone dealer opined it could be fuel injector? What should this cost to repair? Answer Save. Favorite Answer. That's a good question!

n54 jerks when accelerating

How do you think about the answers? You can sign in to vote the answer. Mark K Lv 6. Still have questions? Get your answers by asking now.The BMW N54 engine might be the best tuner engine of all time…at least we think so.

What could cause my car to misfire under load, like climbing a hill?

Hopefully I can get some Toyota fans to read it so we can stir up some drama. Anyways, back to the point. In fact, the N55 engine was slightly dialed back in an attempt to tame some of the common engine problems of the N Be sure to read our guide on the N54 vs. This post is going to cover the most common N54 engine problems, along with the symptoms and error codes to be able to identify them.

On top of that, I will cover general maintenance tips to reduce the possibility of these engine problems, as well as repair and replacement options in the case that you fall victim. We will touch on all of these in-depth, focusing on the symptoms of each problem, the performance impact, and the repair options. If you are in the market for an N54 powered BMW and just read that list, you are probably reconsidering your choice.

It definitely did when I was looking for my i…but the substantial difference in tune-ability between the N54 and N55 is what brought me back. My i is a 10 years old already! And my warranty is up. But the truth of the matter is, while some of these problems are inevitable, the majority of them are preventable.

Why is my BMW 528i feeling like it is sputtering between gears?

Read on and we will cover each N54 problem. You guessed it, the N54 high pressure fuel pump is responsible for injecting fuel into the engine. The HPFP feeds fuel through the injectors, which directly supplies the engine with gasoline necessary for combustion. If your HPFP fails, your engine will not get the fuel it needs to run. Sounds like a big problem? It is. Fortunately, BMW realized that, and warrantied it for 10 years ormiles.

If you own a higher mileage N54, it is likely that you have had your HPFP replaced at one point in time. These are common codes, certain ones might not indicate a failed HPFP such as a cylinder misfire code.If your car jerks when you accelerate, it can be a sign of moisture or probably something wrong in its motors.

n54 jerks when accelerating

It often runs fine without jerking if you stay easy on the accelerator, but as soon as you race it, the car starts jerking. Sometimes, the service light may also come on to indicate that the car needs servicing. We have already told you why your car might be jerkingbut if you are also facing similar problem particularly when you accelerate, then OneHowTo.

n54 jerks when accelerating

If your car jerks when you accelerateit can be a sign of moisture in its distributor cap. So, try to park your car inside a garage or in a warmer place which will prevent the formation of moisture. A vacuum leak may also cause a car to continuously jerk when you accelerate. An inadequate amount of fuel is sent to the engine, thus causing a vacuum leak and ultimately jerks when accelerated.

A car may also jerk upon acceleration due to a faulty throttle position sensor. If your car has a fuel-injection system, the sensor allocates a particular amount of fuel to be dispersed when you push the accelerator. If your throttle position sensor has some problemit tends to transmit wrong data which ultimately sends wrong the wrong amount of fuel to the engine.

As a result, the car jerks when you accelerate. You can try to solve the problem by changing the spark plug and always keep it clean as far as possible. A car may jerk badly upon acceleration if the acceleration cable has worn out. It is important to replace the cable immediately, as it may break any time and the car may stop in the middle of a road. If you have a car with many windings, then make sure that all of them are fit, fine and unbroken. If your car has only one winding, then the car will refuse to start at all.

But if it has many, then the car will start but will jerk when you accelerate. The car will jerk when you accelerateespecially if your fuel filter has been blocked due to accumulated waste in it.

Learn to know how to identify a bad fuel filter, and take your car to a mechanic to get it cleaned or clean your fuel filter yourself at home. If you want to read similar articles to Why a Car Jerks when Acceleratingwe recommend you visit our Cars category. Share on:. By Nidhi Nangia. Updated: January 20, You may also be interested in: How to Drive an Automatic Car.

Moisture If your car jerks when you accelerateit can be a sign of moisture in its distributor cap. Write a comment about Why a Car Jerks when Accelerating. I have a Toyota corolla, which I have changed the Distributor from the standard one to an Electronic one.

I have looked at most of the possibilities, which now, all seems fine.View First Unread. Jerking while accelerating.

Just recently our Precedent Club Cart is jerking while we are accelerating. It started off small but has gotten significantly worse. All the wires to the batteries have been recently changed as well. Any ideas? Today BGW. Sponsored Links. Re: Jerking while accelerating. You have MCOR troubles and possibly more.

Originally Posted by lisey We started with Trojan T i believe and just recently converted to 4 Crown 12 volt batteries. I am not sure which model number but i can check later. I did read that article you posted but I am still not sure what to do. Where is the MCOR located?

Can we buy one easily if we need to replace the TPS? Thank you for your help! Sometimes we sound like a broken record referring people to David at Revolution Golf Cars - but yours is specifically a manufacturer issue and he is an "official" CC Parts supplier.

In fact he was the author of the article I linked you to. He can supply guidance as well as the correct fix if you are being afflicted with the TPS issue. First you need to figure out which throttle unit is on your cart. Take the floormat out by removing the four T torx bolts from the floormat retainers 2 on each side. Then remove the pedal assembly.

You'll have two T and two T40 bolts holding it in. Lift it out and you'll see the throttle unit on the passenger side of the pedal assembly beneath the accelerator pedal. If your cart has the IQ drive system you can do without the adapter.

The adapter has necessary resistors only needed for the Excel system.

Jerking while accelerating

If it's an IQ car, the resistors are not necessary and the proper procedure would be to cut off the TPS plug and solder or crimp the MCOR4 plugs onto the ends of the wire harness.

The drive system can be identified by the vehicle serial number. If you'll post the info on what your cart already has plus your vehicle serial number we'll get you going in the right direction.You never thought it would happen to you, but it did. Your trusty sedan has started puttering when you try to accelerate. Just like that car sold by a scamming salesman from a used car shop in a comedy movie you saw.

But this is no joke. The earlier you can know the reason behind the jerk, the more you can minimize the damage and the costs of repair. There are several reasons why car jerks when accelerating. Most of the time, the jerking issue would go away after you have driven it a few miles, so most people tend to ignore it. This type of car jerk is very common in a manual transmission, especially for those who are just starting to learn how to drive and mostly happens when you are trying to shift from the first to the second gear while you speed up.

A stick shift car gets you more involved than an automatic one. It requires the use of all your limbs and proper coordination. This usually occurs if you abruptly release the clutch pedal after changing gears or you shift to another gear with a half-depressed the clutch.

The air mixes with the fine spray of fuel inside the engine and is then lit by the spark plug, causing a controlled explosion, which moves the pistons. This goes on and on, and this cycle is what makes the engine run and your car to move.

A block in the fuel line or air intake can make the car jerk during acceleration as it loses one, or even both of the essential factors in keeping the engine running. Take your car to the service center immediately and have a professional take a look.

Faulty fuel lines can even cause a fire in your engine or worse, an explosion. A disruption in the flow of fuel from the tank to the engine will cause the car to hesitate during acceleration, which will then cause a jerk.

Check for leaks that may have been caused rats chewing off the fuel pipes. Older cars are also susceptible to faulty fuel line issues. This is a common scenario when the car is parked outdoors and the weather is cold. Moisture can accumulate inside the distributor cap that can cause the engine to car misfires when accelerating hard, which in turn causes the jerking in the car.

You cannot skip physics on this one, so prevention is the way to go.

BMW F10 Hesitation Jerking FIX - Throttle body adaptation reset

Unless you keep the engine running idle when you park and waste money on precious fuel but keeping the engine warm and warding off moisture, you better find a warmer, enclosed parking spot. Dirt is another common factor why your car jerks as you try to accelerate. Fuel from the filling station can become dirty due to the sediments in the fuel storage.

The sediments may then settle inside your fuel tank. When the filter is not doing its job, the fuel injection is the next one to get the dirt. Making sure that these three items are clean can prevent car jerks. As previously discussed, air is needed for the internal combustion engine of your car to work.

Clean air and clean fuel mean hassle-free driving. Dust, bugs, road debris, and dirt may accumulate over time, making the filter less efficient.

When the filter has become too dirty, there may not be enough air coming into the engine that can cause the car to jerk because of inefficient combustion of the fuel. Also discussed before, the spark plug is what lights up the combined fuel and air inside the engine causing them to combust and move the pistons.

Therefore, an engine requires fully functional spark plugs to work efficiently. You also may need to check on the spark plug wires for signs of wear and tear. Newer cars have computer controlled ignition systems, which will need to be checked by your service center.A malfunctioning catalytic converter can create major problems for your vehicle.

It causes your engine to run less efficiently, which will reduce power. The catalytic converter also changes carbon monoxide, hydrocarbons and nitrogen oxides emitted by your vehicle into nitrogen, oxygen, carbon dioxide and water. When it doesn't work, the compounds exhausted from your vehicle are much more harmful to the environment. Replacing a catalytic converter is usually expensive, so it's important to verify the symptoms do not indicate a different problem.

Watch the tachometer for readings lower than normally produced by your vehicle. The decreased engine power from a bad catalytic converter will cause the tachometer to show a lower rpm reading.

Track the gas mileage obtained by your vehicle. Automotive website AA1Car says catalytic converter problems often reduce a vehicle's fuel economy. If your car requires more gas to travel familiar distances, the catalytic converter could be the cause. Observe the engine temperature of your vehicle. The reduced engine efficiency of a vehicle with catalytic converter problems causes energy that would have been used to power the vehicle to instead turn into heat.

The temperature of the engine will go up or down as the vehicle moves. But when the catalytic converter has problems, the temperature will stay higher than it normally would while moving at a constant speed. Accelerate the vehicle. The easiest way to spot catalytic converter problems is by paying close attention when the car accelerates. Watch for bucking or stuttering motions as the car or truck moves forward. The vehicle may hesitate to move for a moment when you press the gas pedal.

This is usually followed by a strong jolt as the vehicle jerks forward. A bad catalytic converter may cause the vehicle's engine to stall. It will usually start without trouble and otherwise seem fine but stall immediately when the gas pedal is pressed. Look at the exhaust from your vehicle. This would normally be filtered by the catalytic converter.

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