Hi I have a 07 impala 5.3 and I've been having an issue w...

Q: Hi I have a 07 impala 5.3 and I've been having an issue when I try to accelerate if I give it to much gas it starts to buck and he

asked by on May 02, 2017

Hi I have a 07 impala 5.3 and I've been having an issue when I try to accelerate if I give it to much gas it starts to buck and he

My car has 130000 miles.
My car has an automatic transmission.

Hi there. It sounds like you may have a low fuel pressure concern. A car can idle with low pressure, however when demand is placed on the system it will fail as in your case. The engine is possibly starving for fuel to adequately keep up with demand; increase in throttle, load, and speed demands more fuel. There could also be other underlying issues creating or adding to your concern; electrical concerns, air metering concerns, contaminated fuel, etc.. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a hesitation and bucking concern [https://www.yourmechanic.com/services/car-is-hesitating-and-bucking-inspection].

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

My 2015 silverado 1500 5.3L is making a ticking sound at startup and during acceleration...

What you are describing sounds like the noise associated with hydraulic lifters which are a part of the valve train. In the mornings or when the engine is cold, the oil has had the chance, due to gravity to drain...

Displacement on demand not working.

The 8 to 4 system will automatically default to 8 cylinders if there is any problem that the ECM determines through its programming that it should disable the system. If you are having problems with the oil pressure sensor, it...

Engine light/stability

The traction control system monitors the steering and stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic sensors at each of the four wheels that communicate with the...

Related articles

Essential Things to Know About the 2017 Chevrolet Bolt Electric Car
The 2017 Chevrolet Bolt is the first all-electric car under $50k. The Chevy Bolt has a higher EPA rating than Tesla and gets 238 miles per charge.
The Best Used Cars to Buy If You Get Motion Sickness
For For people that suffer from motion sickness, even on the shortest car trip, riding in a vehicle can prove to be unbearable. What’s great is that there are a number of cars on the market that can help to...
A Buyer’s Guide to the 2012 Chevrolet Captiva Sport
The The 2012 Chevrolet Captiva Sport is a brand new vehicle and is an eco-conscious crossover SUV for the environmentally friend consumer. It comes standard with many features, but also has many available options so it can suit any buyer’s...