no acceleration power

i have changed trans, coils, spark plugs, checked cats not stopped up, cleaned fuel injectors, cleaned tb, maf, checked the egr valve, swapped gears to 410s, and i still do not have any power when i accelerate after if warms up pls help

My car has 140000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
You did not mention replacing the fuel filter and checking the fuel pressure. If the fuel pressure is okay, then the computer should be scanned to see if there are codes and correct sensor readings. The MAF (mass airflow sensor) can cause no power and no acceleration and can be seen on a scanner if it is the cause. Sometimes these sensors will think the vehicle is above 10,000 feet above sea level. This will cause a starvation of fuel in the engine. If you want to have this diagnosed before moving forward with any repairs, a technician from YourMechanic can come to your home or office to inspect your car’s loss of power to let you know what should be done.

How to Identify and Fix Common car Problems ?

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Sluggish acceleration on Ford F 150 may also be caused by a faulty transmission, clogged throttle body content, or a bad mass airflow sensor. Vacuum leak can also cause a Ford F 150 to feel as if it`s losing power. When this happens, use fuel injector cleaner or replace your gasoline filter.
If your Ford F-150 has no power when accelerating, there is no need to fear. Many common issues can cause this to happen. Catalytic converter clogs, clutch faults, transmission issues, bad torque converters, and gear slippage are all causes of the power lack.
The most common cause of engine sputtering are issues with the fuel system. These can range from bad fuel filters, fuel pump issues, or fuel injector issues. The other possible source of the problem would be due to poor ignition – think spark plugs or ignition coil problems.
There are two key ways to improve throttle response delay in your ford f 150: installing a new aftermarket throttle response controller or doing adaptive tuning and calibration. Both methods can reduce gas pedal lag.
The most likely issue is that a component is clogged. A clogged fuel filter is the most common reason, although a loss of power in your car could also indicate problems with the fuel pump or fuel line. Impurities or debris may be blocking the system, which causes the loss of power in a car.
A loss of power is most apparent when you`re accelerating, and can be due to a number of reasons including air flow into the engine, fuel flow and even faults with the exhaust system.
Some common causes include a dirty fuel filter, a bad throttle position sensor, or a problem with the oxygen sensor. The timing belt may also be worn out, preventing the engine from accelerating properly.
Common causes of why a car feels sluggish when accelerating include dirty mass air flow sensor (MAF), faulty spark plugs, defective throttle position sensor, clogged catalytic converter, faulty oxygen sensor, clogged air filter, and fuel system malfunctioning.
The most common reason an F150 will sputter is from dirty fuel injectors or the fuel pump is going bad. If it only sputters while accelerating, a common problem is a dirty air flow sensor. Other causes include issues with the catalytic converter or faulty spark plugs.
The most common reasons a Ford F-150 has a rattling noise are the ball joints, struts or strut mount, or a problem with the sway bar links. Search our network of RepairPal Certified shops near you to speak with a technician about your issue. Oops!
The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.
Clean air filters and fuel injectors will reduce the strain on your car. An engaged emergency brake causes the brake to drag slowing down your car. Disengage the brake to solve this issue. Sometimes acceleration problems are just because of low fuel or poor quality of fuel.
When you press down the accelerator pedal and get minimal output, it could mean you have a problem with your fuel system. The most probable issue is a clogged fuel filter. Your fuel filter works to ensure that dirt and debris do not get into the fuel system.
This hesitation while accelerating can be the result of a number of issues, including something like a clogged fuel filter or even a broken fuel pump. Sometimes, something could also be wrong with the transmission.
Yes. While the damage may seem small initially, the longer you drive with a bad oxygen sensor, the worse the damage will become. Eventually, you may experience rough idling, poor acceleration, engine misfires, an illuminated check engine light, and failed emission tests.
If your engine revs up as you press down on the gas but your vehicle doesn`t accelerate as much as you`d expect, you may be dealing with transmission slipping. If you`ve ever tried to accelerate on ice, where your engine revs but your vehicle goes nowhere, you know the feeling.
Irregular resistance within the fuel pump motor can lead to your car slowing down and being unable to accelerate. Failing to accelerate is a good sign that your vehicle`s fuel pump needs inspection.
Fuel injector nozzles can become clogged over time, which can lead to a sputtering engine, slow acceleration and the car not having enough power. Fuel injectors can be cleaned if the problem is caught early, but as the conditions worsens, the injectors may have to be replaced.
There are a range of reasons why your car is juddering when you accelerate. Your vehicle could have dirty fuel injectors, a damaged fuel pump, a blocked catalytic converter, a faulty mass airflow sensor, broken spark plugs, or even an accumulation of moisture.
Typically it`s from a damaged inner CV joint. These are located on the end of each axle. They both have an inner and outer joint that could be damaged and shake when you press the gas pedal. Another cause could be a broken motor mount.
How this system works: Hearing a bubbling or gurgling sound means that there`s fluid at work. The most common source of this sound is your coolant system, particularly if you have an expansion tank attached to your radiator.
Multiple reasons can cause this, such as a clogged air or fuel filter, a weak fuel pump, or defective spark plugs. Moreover, in the case of modern cars, an engine misfire can result from sensor problems such as a bad oxygen sensor or a faulty mass air flow sensor.
A malfunctioning TPS will cause your engine to run poorly. Generally the engine will idle fine but will have difficulty accelerating.
Among the two most important parts within the throttle body are the throttle body position sensor (TPS) and the throttle body temperature sensor. While they sound similar, they are indeed two individual parts that work together to efficiently mix fuel and air.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

After shifting into gear, i can accelerate but then there is no power to accelerate.
ANSWER : Does it feel like the transmission is slipping? If you are leaning into the throttle and the engine speed is increasing, but it feels like the vehicle speed isn’t increasing as it should, it may be time for a new clutch. One the clutch is worn out, it can be difficult to drive the vehicle as there isn’t enough friction material left to keep the bind between the engine and transmission. Consider hiring an experienced technician like one from YourMechanic who can come out and take a closer inspection of the vehicles lack of power and offer a more personal diagnosis then estimate the proper repairs.

Read Full Q/A … : no acceleration power

Sporadic loss of power when accelerating
ANSWER : Hello. This can be caused by a number of things. If the Check Engine Light is coming on then I would usually start by scanning the computer for codes. If there are codes then it may give me an idea of what is going on.

If not then I usually monitor the signals from the sensors to see if any are failing. If they are also fine then the catalytic converter needs to be checked for clogging and the fuel pressure must be checked as the pump may be failing causing low fuel pressure.

From what you are saying it sounds like the fuel pump may be going out. If you plan on having this looked at, consider the assistance from a certified mechanic who can come to your home or office to diagnose your loss of power.

Read Full Q/A … : no acceleration power

Engine light on. when accelerate leak a power sometimes. When press a accelerator pedal, sometimes have a noise sound like a snore
ANSWER : Hi there. I would need to know what year your VW is to be able to help you more in depth on this. From what you are explaining it sounds like you may have an injector that is failing or you may have a clog in the exhaust filter, again that depends on the year of the vehicle. From my experience with these vehicles it is usually an injector failure. I usually do an injector balance test to see if any of the injectors are failing. If you’d like support in diagnosing and repairing this issue, a certified YourMechanic technician can be dispatched to your location to help inspect your check engine light.

Read Full Q/A … : no acceleration power

Have a Mitsubishi Lancer 30th anniversary 2011, making a rattling noise when accelerating and loss of power. There is occasional smoke.
ANSWER : Hi there. The rattling noise is the ignition system being too retard or advanced as the engine is accelerated. Check the camshaft position sensor and see if the sensor is connected and sending a voltage reference to the computer. To check this, put a paper clip on the wires coming out of the harness plug (known as back probing) and check to see if there is power as the engine is running. If there is no power or if the power is weak, then I recommend replacing the camshaft position sensor. If the sensor is working, then I recommend replacing the spark plugs with the OEM specified spark plugs. If you need further assistance with diagnosing your engine noise, then seek out a professional, such as one from Your Mechanic, to help you.

Read Full Q/A … : no acceleration power

Car sometimes give me acceleration and power issues. Engine power reduced message and engine light appear intermittently.
ANSWER : It is possible that your vehicle’s PCM has failed. This is somewhat of a common problem amongst many GM vehicles. If the computer has failed, this could be one of the reasons that no trouble codes are appearing and the fact that the problem is intermittent. It is possible that the computer is somehow getting overheated and by stopping the vehicle for a short period of time, the PCM cools down allowing the vehicle to run again. I would recommend having your PCM tested for proper function by a certified technician with experience in computer diagnostics.

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I have a loss of power when acceleration the car does not drive pass 10 or 15mph I change the plugs and also change the fuel filte
ANSWER : This may be result of a failing or dirty mass airflow sensor. This is a unit that is responsible for regulating the air flow into the engine as it is mixed with fuel prior to being injected into the motor. When this is not working properly, this will cause an imbalanced air/fuel mixture resulting in a stalling or surging in the vehicle’s performance. The knocking sound may also be a result of the struggling acceleration which is common when the engine struggles to develop power. I would suggest having an expert from YourMechanic come to your home to take a look at your vehicle, and possibly replace your mass airflow sensor at your earliest convenience.

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Car lacks power on acceleration and stumbles at highway speed
ANSWER : This vehicle and engine has a list a mile long of various engine, cooling, computer, transmission, fuel and other possible problems that could contribute to causing the problems you are having. My best recommendation is to have a mechanic test the vehicle and diagnose the problem after examining the fuel pressure, computer and ignition system for any problems. The diagnosis will need to be thorough in order to isolate the cause of the problem. A certified mobile mechanic from YourMechanic can diagnose any acceleration problems at your home or office.

Read Full Q/A … : no acceleration power

I am replacing my power brakes booster and need some advice about removing the power unit from the bell crank.
ANSWER : Hi there. When removing the brake booster from a vehicle, you will need to remove the master cylinder and cap off the hydraulic lines. Then go in the cab and remove the pin from the bell crank and unbolt the 4 bolts that hold the booster on. Then remove the booster. Do the opposite to install the booster. If the bell crank pin had a cotter pin to secure it, make sure that you use a new cotter pin. If you need further assistance with removing and installing a brake booster in your vehicle, then seek out a professional, such as one from Your Mechanic, to help you.

Read Full Q/A … : no acceleration power