Q: Jerking reaction when accelerating

asked by on December 21, 2016

my dart has what feels like a misfire, is backfiring out of the exhaust and is like bucking on acceleration but no cel or underlying codes. i was please hoping to get an answer as to whether it just seems like a misfire like coil or spark problem, the turbo is going, or because of the non cel if the pcm is not acting as it should

My car has 71250 miles.
My car has a manual transmission.

Engine is misfiring Inspection $79.99 - $89.99 Get a Quote

What you are describing sounds like an ignition problem or a lean fuel issue. I would start with checking items like the mass air flow sensor, O2 sensor, etc. since these types of items can affect air/fuel mixture controlling the leaning out or richening up of the motor. As you may know, misfires can be caused by many different things. 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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Fvcv

Hi Danny. Thanks for contacting us tonight. The fuel volume control valve (FVCV) is found on high pressure pump on most modern common rail diesel engines. It regulates the volume of fuel from the internal transfer pump to the high...

Would older model front bumper fit newer model?

Hello. I do not believe that a front bumper for a 2003 Dodge Ram 1500 will fit your 2014 Dodge Ram 2500. However, your local dealer should be able to give you reliable information regarding your front bumper.

I purchased a new computer for it does it need programed

You would need to have it programmed to your VIN. Have the computer scanned to see if you have a good crank shaft signal first, before replacing the ECM. You may not need the ECM replaced; you may have a...

car losing power and slipping

Hello, thank you for writing in. The vehicle may be suffering from a large number of issues. You are going to want to start with the most obvious and likely to fail at almost 200,000 miles. Starting with the "slipping"...

How do I use electronic range selection (ERS)?

Electronic range selection (ERS) allows you to put a range on the gears available in your automatic transmission. If you are in “Drive,” for instance, your vehicle can use every gear. ERS allows you to set a limit for the...

Had front struts replaced, would the coil be replaced as well? The coil doesn't look new

Hello. Changing the strut consists of just that, replacing the strut. This is the center part that looks similar to a shock. If you were expecting more then the strut, then it would have been a more expensive job. What...

safe jack points with floor jack

Many vehicles are safe to jack up on the axles, control arms, subframes, and sometimes the pinch weld. Be careful lifting on the pinch weld of some vehicles as it can cave in and cause seriouse body damage. If you...

Windshield wipers not working properly

Hi. To get a better understanding of the window wiper system, the wiper motor is controlled by the switch on the steering column through to the integrated control module. The system would need to be tested to see if the...

Car won't drive

This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, turning on AC or engaging the brakes). The Manifold Absolute Pressure (MAP) sensor...

Related articles

A Buyer’s Guide to the 2013 Infiniti JX35
Designed Designed for those who need plenty of seating capacity but don’t want to drive a minivan, the 2013 Infiniti JX35 hits the mark for luxury vehicles in its class. With innovations that chosen for their convenience and safety, this...
2012 GMC Acadia vs. 2012 Dodge Journey: Which One Should I Buy?
The GMC Acadia is classed as a midsize SUV, which is able to seat between six and seven passengers comfortably. The 2012 Acadia offers three rows of seating, so passengers will feel the roominess that is typical in a true...
A Buyer’s Guide to the 2013 Acura ILX Hybrid
Acura Acura returns from a spate of years devoted to the higher-end luxury market, and they do so in style with a car that practically invents its own segment. The ILX Hybrid is the half electric portion of the brand...