Q: My engine management light is flickering on when I accelerate and the car is jerking
Every time I accelerate my engine management light flickers on the dash and the car is jerking. Car has recently had a full service and didn't solve this.
My car has 103967 miles.
My car has an automatic transmission.
Recommended Services
| Mass Airflow Sensor Replacement | $188.36 - $786.53 | Get a Quote |
| Car jerks forward at high speeds Inspection | $94.99 - $114.99 | Get a Quote |
Hey there. This may be an indication of a failing or dirty mass air flow sensor. This is a unit that monitors air intake as it is mixed with fuel prior to being injected into the engine. When this is dirty or not working properly, this can cause an imbalanced air/fuel mixture to be injected into the engine causing this kind of surge you have described. To verify the problem, consider YourMechanic, as a certified technician can come to your home or office to inspect the jerking problem and follow through with any needed repairs.
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
How do I know that my OBD system is working right?
The OBD system on your vehicle is a self-monitoring system. The Powertrain Control Module monitors and controls all of the systems and functions that regulate fuel, ignition, emissions, and engine cooling as well as having some minor control over air...
Car initially fine after cleaning injectors.
The rotary engines have twin rotors that have what is called apex seals the give these engines the compression to run. These seals are a known failure that can cause no start, low power and fouling of the plugs. You...
It lost power and now won't start
It sounds like the battery is dead (https://www.yourmechanic.com/services/battery-is-dead-inspection) from the alternator not charging. This would account for the gradual loss of power and why the battery is dead and you have no lights. Have the battery charged (https://www.yourmechanic.com/article/how-to-charge-a-dead-car-battery) and tested....
Loud cracking noise underneath them can have a nic loud cracking noise underneath then car almost dies out
Hey there, thanks for writing in about your 2007 Lincoln MKX. Unfortunately, without hearing the noise or conducting a few tests firsthand, it is not possible to determine the cause of your concern. Since you say you are hearing the...
Car floods bad when cold. If I give it a little gas it jumps and jerk and if I mash it on down it takes off. I've replaced the O2 sensor and coolant temp sensor.
This may be related to a dirty or faulty idle air control valve. This is a unit that reads the air intake at low or idle speeds and relays this information to the computer which then makes adjustments to fueling....
I want to know what wire is the high beam wire.
Hi there. The best thing to do is get a digital volt meter or test light and check the headlight high beam harness for power and that will tell you which wire is the power wire for the high beam...
When im at a stop and i have my foot on the brake the car will start accelerating, the car isn't moving but the RPM will go up?
It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement) monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the gas...
If a left cv axle is bad, would you lose power to the wheel? Would it also effect the right side?
The CV axle is just a shaft with joints on each end. The axle will transmit whatever power is applied to it but if the splines on the shaft are sheared off, or a joint is physically broken (separated), the...
I have a 1988 Chrysler Fifth Ave,everything under the hood was wet now it's been 3days and still won't start
Excessive moisture and, worse, liquid water, all over the engine will cause electrical components to malfunction. The engine should be inspected to determine if it can be "dried out" and to determine which connectors and components need to be removed...
Related articles
Top 10 Factors to Consider When Buying a Luxury Car
The The idea of owning a luxury car is appealing. The glossy paint, swoopy lines, and prestigious badges speak of the owner’s success in life, while the interior opulence offers scented leather surfaces, high-tech telematic devices, and all the creature-comfort...
Symptoms of Bad or Failing Spark Plugs
Common signs of faulty spark plugs include slow acceleration, loss of power, poor fuel economy, engine misfires, and difficulty starting the car.
How Long Does a Thermostatic Vacuum Sensor Last?
Winter Winter can make for tricky driving conditions - just starting up your vehicle can be a bit more of a chore. When the engine is cold, it takes a few minutes before it reaches optimal temperature and you should...
Browse other content
Maintenance
Estimates