Loss of power when in gear. Replaced spark plugs and the same problem continues.

hello i have replaced the spark plugs on my 2000 ford e150 and coils r working fine but when i put it on gear lost all the power wont move the motor turn weak
Experienced mechanics share their insights in answering this question :
Hi there. If the engine runs great operating in park or neutral, then there may be a problem with the brake system or transmission issue. First check the brakes and see if they are released. Put the vehicle in neutral with the engine off and try to push the vehicle by hand. If you are able to push the vehicle, then the brakes are released. If you are unable to push the vehicle, then the brakes could be engaged causing the vehicle to not move. If the brakes are good and working properly, then its possible that the transmission torque converter has failed. If the torque converter is unable to produce a vortec pressure, then the stator clutch broke inside the torque converter. Then the torque converter would need replaced. If the transmission was slipping or the clutch was slipping, then this can also cause the vehicle to have a poor acceleration making the engine seem weak. If the transmission was replaced or the clutch was replaced and there is still a loss of power, then its possible that the engine has worn rings and valves may not be sealing properly causing the engine to have an internal loss of power. If you need further assistance with your engine having a loss of power, then seek out a professional, such as one from Your Mechanic, to help you.

How to Identify and Fix Common car Problems ?

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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.
It`s when you have a damaged torque converter seal that fluid leaks out and causes the overheating and damage. It is the lack of fluid that causes overheating, slipping, or shuddering.
A torque converter is a type of fluid coupling which is used to transfer rotating power from the engine of a vehicle to the transmission. It takes place of a mechanical clutch in an automatic transmission. The main function of it is to allow the load to be isolated from the main power source.
However, the three most common causes are natural causes, human error, and overload. Basically, any interruption between power generation and the supply of electricity to homes can cause a power outage. It can stem from inclement weather conditions, human error, equipment failure, and even animal interference.
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.
A damaged torque converter will be unable to provide a seamless transfer of the engine`s rotational force into hydraulic pressure. The downside to this is that there could be an increase in the normal stall speed, and as such, it could take the transmission more time to engage the engine.
A bad torque converter can damage a transmission. Bad torque convertors can lead to damage, overheating, friction, and transmission fluid degradation. If these problems continue, it can cause even more damage to transmission.
Low fluid levels can cause gears to miss, which will result in a grinding sensation. The occasional slipped gear might seem like a small issue at first, but it`s always a good idea to have the transmission looked at when this occurs to avoid costly repairs in the future.
The best thing to do to confirm the problem is to test the torque converter. To test the torque converter, you must step on the pedal to the floor and accelerate your engine for up to five seconds. The reading for the revolutions per minute (RPM) will max out at the stall speed.
Their main differences lie in how they work and what they`re used for. While clutches link the engine to the transmission, torque converters allow them to run independently from each other. Clutches operate via centrifugal force, while torque converters run on hydraulic power.
One of the main causes of power loss is the Joule effect found in transformers and power lines. The energy is lost in the form of heat in the conductors. The transmission has conductors whose main purpose is to resist the flow of current.
1. At the top of all auto repair experts lists for causes of problematic transmissions is low transmission fluid. Usually caused by a leak somewhere in the system, low or contaminated fluid makes it nearly impossible for the transmission to automatically shift gears and run smoothly.
One of the main causes of power loss is the Joule effect found in transformers and power lines. The energy is lost in the form of heat in the conductors. The transmission has conductors whose main purpose is to resist the flow of current.
1. At the top of all auto repair experts lists for causes of problematic transmissions is low transmission fluid. Usually caused by a leak somewhere in the system, low or contaminated fluid makes it nearly impossible for the transmission to automatically shift gears and run smoothly.
Since your transmission is responsible for transmitting power, internal transmission issues can lead to acceleration problems. Your engine still produces at full output, but your transmission doesn`t get that power to the wheels.

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Spark plug chaos. Rubber stoppers are preventing the spark plugs from coming out.
ANSWER : Hi there. Try using a pair of small needle nose pliers to pull off the rubber boots from the spark plugs. As you pull, twist the rubber boots to break them free. If you cannot get the rubber boots off, then try using some mineral oil on the boots to aid them off, then clean off the oil with soap and water with degreaser. If you need further assistance with removing the boots from the spark plugs, then seek out a professional, such as one from Your Mechanic, to help you.

Engine will not stay started. I have replaced idle control valve map sensor spark plugs spark plug wires no check engine light is
ANSWER : You have a problem with the distributor assembly. I recommend replacing the distributor assembly. This will replace all the possible sensors and coil for the ignition and fix the problem you have.

Loss of power when in gear. Replaced spark plugs and the same problem continues.
ANSWER : Hi there. If the engine runs great operating in park or neutral, then there may be a problem with the brake system or transmission issue. First check the brakes and see if they are released. Put the vehicle in neutral with the engine off and try to push the vehicle by hand. If you are able to push the vehicle, then the brakes are released. If you are unable to push the vehicle, then the brakes could be engaged causing the vehicle to not move. If the brakes are good and working properly, then its possible that the transmission torque converter has failed. If the torque converter is unable to produce a vortec pressure, then the stator clutch broke inside the torque converter. Then the torque converter would need replaced. If the transmission was slipping or the clutch was slipping, then this can also cause the vehicle to have a poor acceleration making the engine seem weak. If the transmission was replaced or the clutch was replaced and there is still a loss of power, then its possible that the engine has worn rings and valves may not be sealing properly causing the engine to have an internal loss of power. If you need further assistance with your engine having a loss of power, then seek out a professional, such as one from Your Mechanic, to help you.

After part replacements, spark plugs do not work – 1996 Lexus LX450
ANSWER : If you have a Check Engine Light on, first check for those codes to determine what engine management thinks is going on. If no trouble code, check the ignition fuse behind the driver side kick panel (carpeted panel at foot level on the left – for left-hand drive vehicles). If the engine is spinning quickly, and doesn’t appear to be meeting any resistance (as a motor with good compression would have), you may have a broken timing belt. If so – STOP, call a professional mechanic, like a certified technician from YourMechanic for help.

My 2003 Mazda Tribute stalls in gear, no power, rough idle, not the plugs, oil fouled black, clean maf and idle air valve
ANSWER : Hello. I would start by scanning the vehicle for codes and checking to see if all of the sensors are reading correctly. If everything looks good then chances are it needs a new computer. I have seen the computers fail on these vehicles over and over again causing the ignition circuits to not work correctly which causes the vehicle to run just like this. If you need to have this looked at, consider YourMechanic, as a certified mechanic can come to you to [diagnose why the vehicle is running like this] https://www.yourmechanic.com/services/car-idle-is-rough-inspection

Engine light fault. There was a bad spark plug and a failed ignition coil. Replaced both the coil pack or spark plug.
ANSWER : Hi there. If the light is coming on then shutting off and returning on, then if the issue is for the same coil, there could be an issue with the wiring on the coil plug. Check the wiring on the coil plug and see if the wires are split, broken, or burned. If there is nothing wrong with the plug, then the main engine harness has an issue / short and may need replaced. If you need further assistance with your ignition system, then seek out a professional, such as one from Your Mechanic, to help you.

Car sputters and has weak power after new spark plugs and ignition coil were recently replaced
ANSWER : There are actually several possible causes for the engine to sputter. It is possible for there to be a vacuum leak, a faulty oxygen sensor, a catalytic converter that is starting to show signs of failure, or even a possible problem in the fuel system. It will be necessary to do some further diagnostics to determine which system is causing the problem, and then figure out which part in that system is the root cause. For example, if it is found that there is low fuel pressure in the system, it will then be necessary to figure out if there is a weak fuel pump, clogged fuel filter, or something going on with an injector. If the problem appears to be with the ignition, there could be a problem with a spark plug, ignition coil, ignition control module, or a fault in the wiring. I understand you said that the plugs and coil had been replaced, but it is possible that one of them have failed again, since the problem is recurring. If this is something you could use a hand in identifying, I would suggest consulting a certified mechanic, like those available at YourMechanic.com.

My car is shaking at idle and is losing power in the low end service engine soon light is flashing.
ANSWER : Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft position sensor, spark plugs, spark plug wires or ignition modules not working properly. When the misfire results from a fuel related issue, this is commonly related to a lean fuel condition (lack of sufficient fuel supply to the motor). Fuel related misfires can be caused by many different things such as low fuel pressure, faulty or dirty fuel injectors, a faulty O2 sensor, a dirty or failing mass air-flow sensor, a faulty or dirty idle air control valve or a vacuum or intake leak. When the fuel supplied to the combustion chamber is insufficient, this results in an ignition (spark) that is igniting a less than balanced load of fuel and air. This results in a misfire or an explosion in the cylinder that is much less powerful than the other cylinders. This creates a loss of power that resonates throughout the motor additionally causing other problems with ignition and fuel timing. Due to the number of different things that may cause an engine misfire, the quickest and easiest way to diagnose this type of problem is to hook the vehicle up to a scanning tool which will download any potential fault codes that may have registered in the vehicle’s computer as a result of the poor running condition. I would recommend having an expert from YourMechanic come to your location to diagnose your misfiring problem.