Jutters when giving little gas and letting go

Ok I had problems with the tcu. Fixed it. Friend advised if I want good shifts change the thermostats since my car never got hot only at in town speed. Fixed it. Works great Sept it jutters when given little gas and letting go of the accelerator pedal. Could it be the throttle or bad shocks.

My car has 96000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially a bad fuel pump. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.

How to Identify and Fix Common car Problems ?

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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 number of potential reasons why your Honda Accord might not be accelerating as quickly as it used to. It could be something as simple as a dirty air filter, which is restricting airflow to the engine, or it could be a more serious issue like a problem with the fuel injectors.
Dirty fuel injectors are among the most common reasons for why an accelerator becomes jerky. The dirty injector leads to your car losing power when you attempt to accelerate while at a stop and when you try to drive at a consistent speed. This is the result of an engine misfire.
The car will stall if the valve is too clogged or when it finally fails. If, while holding the accelerator pedal down, a small amount of pressure keeps the car running at a stop, the idle control valve may require attention.
What could the problem be? 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.
The most likely cause of the shuddering most often happens in the vicinity of your car`s rims and tires. They plant your car to the road, and if anything is broken, will feel it. On a serious note, it may be a broken transmission mount or a broken caliper.
There are a few reasons why your car might hesitate when you press the gas pedal. It could be due to a problem with the mass air flow sensor, the oxygen sensor, the TPS, or the fuel filter. It could also be due to a clogged or dirty air filter.
The most common cause of poor engine airflow is a clogged or damaged air filter. The air filter in your car protects the engine by catching all kinds of debris before it can enter the cylinder and cause more damage.
Dirty Air Filters

The air filter functions to prevent dirt and debris in the air from entering the engine. If it`s dirty, it could restrict airflow to the engine, thus reducing the amount of oxygen that the engine gets. This causes an uneven oxygen-to-fuel ratio in the engine which leads to misfiring and car jerking.

There are three major causes for a stalled engine: A lack of fuel, a lack of air flow and improper ignition. Running out of fuel is one of the most common causes of engine stalling, but dirty fuel injectors or a plugged fuel filter can also be the culprit. Your engine needs air to run properly as well.
Motor mounts keep your engine attached to the car. Weak or broken mounts can`t hold the engine tight in the engine compartment and creates a vibration at idle. If the shaking subsides when the car is in Neutral, this could indicate the motor mounts are responsible for the vibrations.
Ignition system: a malfunctioning ignition system can result in power loss as well as start-up issues. Faulty fuel pump and/or filter: a worn-out pump or clogged filter can prevent the proper flow of fuel to your engine and result in a noticeable loss of power.
An engine that is hesitating to accelerate is most likely dealing with a fuel/air mixture that is too lean. Engine`s that are running inefficiently will begin to show signs like hesitation which will only become worse over time.
Unreliable Engine

One of the first issues you might notice when your alternator is on its last legs is the engine struggling to start or randomly stalling as you drive. This is because the engine depends on the alternator to provide energy to the spark plugs and trigger the ignition process.

There are several reasons why your Honda may hesitate during acceleration. The most common reason is a problem with the fuel system, such as a clogged fuel filter or faulty fuel injectors. Another possibility is an issue with the ignition system, such as spark plugs that need to be replaced.
The engine of the car makes a whirring sound when accelerating. The more you accelerate, the more the whirring increases. It`s time to get your car in for a checkup! There might be a number of reasons for this, including a bad water pump, low levels of power steering fluid, and a bad air conditioner compressor.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Stop at stop sign, give it the gas, it want go, let up, push down agin it goes,the engine does not die.!!!!
ANSWER : What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. This valve is controlled by the vehicle’s computer and will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. This is also an important function when starting the motor as it allows the motor to run and idle on it’s own once the motor fires. When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed with the help of the idle air control valve making the transition from a higher RPM back down to idle speed while adjusting the air/fuel ratio constantly to allow this to happen smoothly. When the engine RPM drops below the normal range of about 800 RPM, this often times will cause the engine to stall indicating a dirty or faulty idle air control valve. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

Jutters when giving little gas and letting go
ANSWER : There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially a bad fuel pump. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.

My car won’t go past 35mph
ANSWER : Hi there. From the description you provided, your vehicle has problems with the transmission again. You stated it will not shift into 3rd gear again, like before the transmission was rebuilt. If the transmission is again the problem, it should be covered under warranty. It could be a faulty shift solenoid. The shift indicator not reading properly could be a faulty transmission position sensor. If this is an overall lack of performance issue, according to your last statement, then possibly you have a restriction in the exhaust system. I recommend having your vehicle’s problems inspected and diagnosed by a certified technician from YourMechanic.

My 2009 Dodge Ram Hemi 2500 makes a loud rumbling noise in the front end. I stop giving it gas couple times and it goes away
ANSWER : Hello, thank you for writing in. The noise may be coming from a number of issues with the vehicle. Considering the loss of power, you want to focus on the exhaust, air intake, and spark systems. An exhaust leak or other issue will cause back pressure, a loss of power, and poor fuel economy. Start by visually inspecting, and testing for back pressure. Then you can look into the throttle body, idle air control, and other intake sensors. If needed, you can look into the spark or ignition system next to make sure your are not experiencing a misfire. For more help with testing, contact our service department to schedule an appointment.

My car idles roughly and wants to die when I give it gas what could this be?
ANSWER : With this kind of engine issue, I would imagine that your Check Engine Light is on, indicating that the built in diagnostics have logged and error and a diagnostic trouble code. It will be important to know these codes to pinpoint the exact component that is failing. It could be caused by a faulty mass airflow meter, throttle position sensor, it could also be a fuel delivery issue or timing issue. I suggest having a certified technician, like one from YourMechanic, determine the exact cause of your rough idle concern.

Car loses rpms when idling and dies when not giving it gas on first run.
ANSWER : Hello. It may be a problem with the choke on the carburetor. Try some carburetor cleaner in and around the carburetor, especially the choke plate. On a cold start no matter the temperature, the choke plate should be mostly closed. Then after warm-up, it should be completely open, pointing straight up and down. If it is not doing these things, the choke pull off – which I believe is both electrically and vacuum controlled is not functioning properly. Check the electrical connector as well as the vacuum lines to the choke pull off. If you have a hand-held vacuum pump, connect it to the choke pull off and apply maybe 5-10 inches of vacuum. The choke plate should move and the pull off should hold that 5-10 inches of vacuum. If it does neither, then the rubber diaphragm inside the pull off has ruptured and will require a new choke pull off. For help having this issue handled, a qualified professional from YourMechanic can diagnose the rough idle and help follow through with repairs.

What’s going on when gas is constantly slowly leaking from where the gas cap is and the cap was not under pressure when opening?
ANSWER : It is possible the tank was filled too much, that is the gas pump did not shut down when it should. Even if gasoline was not filled right to the top, thermal expansion can later cause the gas to overflow if the tank gets warmer and pressure builds. The too high level will subside quickly as all you have to do is drive 25 miles or so to lose a gallon. If you believe there is a leak or other issue, a certified Mechanic from YourMechanic can perform a leak inspection during a mobile visit.

When I start my car, it turns over fast, but has issues. I often have to give it a little gas to get it to run normally.
ANSWER : Hi there. There is a possible pin hole leak on the fuel system that is drawing in air into the fuel system. This will make the engine stumble as it is trying to start, but when the fuel is moving constantly, then hole is plugged off. The hole is big enough to draw air in but not leak out any fuel. Look over the fuel system and see if anything is wet from fuel or if there is any punctures. If you need further assistance with your engine starting with having to pump the gas pedal, then seek out a professional, such as one from Your Mechanic, to help you.