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 August 28, 2017

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

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

Hi, I have my car (Hyundai sonata 2015)check engine light on. When I checked it on computer plug into the car, it says intake mani

The P200A code is for the intake manifold runner. Like many other late model cars, your car has a variable length intake manifold to tune the intake length to the speed and driving conditions. This is usually controlled by a...

Car stalling

Hello there. A few different malfunctions could cause this: Fuel pump failure Alternator fuse failure Ignition switch failure Any of these items could cause the fault. A qualified technician such as the ones at YourMechanic will...

trying to check my ac clutch relay on my 2007 rav4, but it's not where it's supposed to be? the slot is not there?

The a/c magnetic clutch relay is in the under hood No. 1 relay block. It is marked "MG CLT". If you apply battery voltage to terminals "1" and "2" of the relay, there should be close to zero resistance across...

Related articles

The Top 5 Selling Cars in Alaska in 2012
Alaska Alaska requires a different kind of vehicle to handle both the terrain and the wintery conditions. While some of the most popular options for the Alaskan terrain in previous years included options such as the Subaru Forester and the...
How to Choose a Jeep Grand Wagoneer
Due Due to a recent surge in popularity, the Jeep Grand Wagoneer is making a comeback. Since the vehicle was manufactured only throughout the sixties, seventies, eighties, and the early nineties, most Jeep Grand Wagoneers are no longer on...
The Best Used Cars to Buy If You Live in a Cold Climate
If If you live in a cold climate, likely one of your biggest concerns when you are considering which used vehicle you should buy is how well it will perform in snowy, icy conditions. We have evaluated a number...