Acceleration and loss of power issue

My truck doesn't have any power and my overdrive light on
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
The transmission control module (TCM) helps regulate fuel efficiency and power while storing information about the transmission system in its memory. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears.

The transmission control module has various sensors such as vehicle speed sensors, wheel speed sensors, throttle position sensors, turbine speed sensor, and transmission fluid temperature sensors that all direct information to it in order for it to perform it’s function.

The TCM also controls the overdrive function of your truck’s transmission. Any of these may also affect the way the transmission control module performs and controls the transmission and the shifting of your truck.

I would suggest having a professional from YourMechanic come to your location to properly diagnose your loss of power problem and service your transmission speed sensor if necessary. Best of luck.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The main cause of a sluggish truck is a dirty air filter. If the air filter is not clean, the engine will bog down and struggle to accelerate. This is an easy-to-replace maintenance item, and generally speaking, it should be replaced every 15-30k miles, depending on the type of engine you have and local conditions.
Slipping gears is apparently a common problem in vehicles equipped with Ford`s 4R100 transmission, and the 2001 Ford F-250 Super Duty is no exception. In one report filed with the NHTSA in 2002, the owner of a 2001 Super Duty reports that the transmission frequently slips while driving.
You can find your vehicle`s transmission on your window sticker. It will be listed under Vehicle Description on top of the window sticker.
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.
Wondering why your car feels sluggish when accelerating? It could be due to a dirty air filter, a bad spark plug, or a faulty catalytic converter — among several potential suspects behind sluggish acceleration.
Transmission Range Sensor (TR)/ Transmission Position Sensor

The PCM uses this information to control which gears of the transmission to enable or disable. When the TR sensor fails it can cause wrong gear starts, no upshifts, or what feels like a falling-out-of-gear condition.

Error code P0700 signifies that a malfunction has been detected in your vehicle`s transmission controls. Most modern automobiles feature a specific control module as it relates to the vehicle`s automatic transmission. This module is known as the Transmission Control Module (TCM).
The transmission position sensor is usually screwed onto the side of your car`s transmission. As you move the automatic gear selector from park/neutral to drive or reverse, it detects the changes. It then enables and disables the connection to the starter motor circuit, affecting your car`s ability to start.
Automatic Transmission 4R100. 4R100 – RWD. 1999 – 2004 Ford F250 (Super Duty).
You will feel a loss in power while accelerating and at times intermittent jerks. To solve this issue find the fuel filter located in the engine bay or near the fuel tank in your car`s trunk. If the fuel filter is clogged replace it if you have the skills to do so or get it changed at your local mechanic shop.
Why does my car not accelerate when I push the gas? A car not accelerating properly can be caused by a number of things. It could be due to the throttle body, gas tank, spark plugs, or the ECU. It could also be because you have a dirty air filter or a clogged fuel filter.
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.
Culprits include a dirty fuel filter, clogged fuel tank strainer, clogged or failing fuel injectors, or a defective fuel pump. On most vehicles replacing the fuel filter is a DIY operation.
You may need to have a mechanic check the oxygen sensor, the mass airflow sensor, or both. The oxygen sensor will likely need to be replaced if it is dirty, while the mass airflow sensor can simply be cleaned. A dirty sensor may prompt the “Check Engine” light to come on in the car.
A poor fuel delivery drains out the power of the engine resulting in poor acceleration. Fuel filter – A dirty or clogged fuel filter affects the fuel supply to the engine and thus the engine has low power causing poor acceleration. Other parts of the fuel system are the fuel injector and fuel pump.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

SUV experienced low acceleration and loss of power
ANSWER : Hello. There are a few possible problems that might explain the problems you are experiencing with your 2009 Saturn Outlook. There could be a problem with the catalytic converter in that it may be clogged. The catalytic converter is like a filter for the exhaust and when/if it is clogged, the exhaust can’t pass through it which may result in a loss of power and then an engine shut off.

It is also possible that there is a problem with the electronically controlled throttle body. The throttle body is what allows the proper air/fuel mixture when the gas pedal is pressed. If the throttle body isn’t operating properly, the car won’t accelerate and you may experience a loss of power and an engine shut off. Have a certified technician, like one from YourMechanic, come and complete an inspection to pinpoint the cause of your car’s loss of power.

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.

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.

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.

What could be the causing loss of power while accelerating leading to engine stalling? 2011 Chevrolet Aveo
ANSWER : Hi there – based on the symptoms you describe, I suspect that either the throttle position sensor or the fuel pump (or fuel pump relay) are failing. The result is either incorrect throttle position reported to the engine computer, or inadequate fuel pressure to fire the injectors. I recommend a car is stalling inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Car jerks when accelerating in reverse & makes grinding noise. Is this a transmission or computer issue?
ANSWER : Hi there. Typically when you hear a grinding noise when you move forward or in reverse it’s usually an indication of a gear fault either in the transmission or another driveline component. If this occurs only when in reverse, it’s likely a damaged reverse gear. It is also possible that it’s a hydraulic fluid issue not supplying enough lubrication or pressure inside the lines to fully open the gear. I would recommend having a professional mechanic come to your location and complete a car is hard to shift inspection, so they can diagnose the source of your issue and recommend repairs that should resolve this problem.

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.

Throttle doesn’t open when I press down on the accelerator; vehicle starts fine and revs up smoothly; but has loss of power.
ANSWER : The throttle may not respond if any major computer sensor is failing if the computer cannot control the throttle safely. Have the codes scanned to diagnose the problem. If you need a mechanic like one from YourMechanic have one scan and diagnose the problem. It may be the pedal sensor causing the problem but would need testing.