Q: My car buckle and jerks real bad but when I put fuel treatment in it stops until the fuel gets low.

asked by on

My car buckles and shake really bad. When I add fuel treatment it stops completely . What proublem could it be ? I got new o2 sensors new spark lugs tune up to no avail please help me

My car has 72000 miles.
My car has an automatic transmission.

It sounds like you may not have fuel injectors that are firing properly or that may be a bit clogged. When the fuel injectors are not spraying an even, uniform pattern of fuel, this causes an imbalance in this air fuel mixture resulting in the motor often times starving for fuel or in some cases being flooded with too much fuel. In cases where there is too much fuel being provided (i.e. a leaking fuel injector), this may cause the engine to bog down and produce a fuel smell and occasionally, emit a bit of black smoke from the exhaust or cause problems with starting. In a situation where the fuel injectors may not be providing enough fuel, this may cause the engine to starve for fuel often times resulting in the car jerking or bucking while driving as a result of the intermittent fuel supply. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My car buckle and jerks real bad but when I put fuel treatment in it stops until the fuel gets low.

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

Get a quote

What others are asking

Q: Leaky thermostat

It should be leakproof with the supplied gasket used alone. If it is leaking the flanges might have had residue on them, be distorted, or pitted. Although adding sealant "might" overcome those latter defects when you disassemble it just be...

Q: 2007 jeep liberty cracked radiator replace or use a fix kit?

Hi There, Unfortunately, there is no way to tell whether or not the fix kit will hold it and for how long. Depending on the severity of the crack and the location of the crack it may last for a...

Q: 2016 f150 supercab. Low rpm vibration.

The low rpm vibration may be caused by an engine mount failure or poor fueling from a weak fuel pump. Being a 2016, your concern may still be under warranty so you should take the vehicle to your local dealer...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.