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Car is hesitating and bucking Inspection Service

When you press the gas pedal, you expect the engine to rev and the car to accelerate. If your fuel delivery system, ignition components and exhaust system are all working properly, that’s what happens. However, even just one problem in any of the systems mentioned could lead to your car hesitating and bucking under acceleration, during deceleration, or at idle.

How this system works:

When you press the gas pedal, the fuel pump sends gasoline through the fuel filter, up the fuel line, and to the injectors. The injectors “atomize” the gas, and spray it into the injectors (atomization just means it turns it into a very fine mist). There, the spark plugs ignite the gasoline, which combusts, moving the pistons and turning the engine.

Gasoline combustion creates fumes (exhaust), which must be vented. This is done through a relatively complex network of components. Most of the exhaust is sent through the exhaust manifold, the catalytic converter, and then out the exhaust pipe. Along the way, some of it is recirculated and burned again (using the EGR valve), and oxygen sensors monitor the exhaust process for the right levels of contaminants.

Common reasons for this to happen:

  • Clogged Fuel Filter: Over time and through normal use, your fuel filter will become dirty and clogged. When this happens, the flow of gasoline to your engine diminishes, which can cause hesitation and bucking.

  • Failing Fuel Pump: If your fuel pump begins to fail, it will not send the right amount of gasoline to the engine. Note that pumps can exhibit intermittent problems for a long time before they fail completely.

  • Failed Oxygen Sensor: If one of the oxygen sensors in your exhaust system has failed, the computer cannot monitor the emissions, and pressure may drop, creating hesitation and bucking.

  • Clogged EGR Valve: The EGR valve is a crucial component in the exhaust system. If it becomes clogged with carbon, it won’t operate correctly, and your engine may spit, sputter or hesitate.

  • Worn Out Spark Plugs and Wires: In order to combust gasoline correctly, your engine needs a steady spark and stream of electricity. This is provided by the spark plugs and wires. If they’re worn out, your engine may spit and sputter.

What to expect:

A top-rated mobile mechanic will come to your home or office to inspect the engine and verify the hesitation and bucking, as well as when the condition occurs. The mechanic will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will connect a diagnostic computer to your car’s OBDII connection and read any trouble codes in the computer (even if the Check Engine light is not on, trouble codes may be stored). The mechanic may need to test drive the vehicle as well to verify the symptoms.

How important is this service?

You need reliable performance from your engine. Even if the hesitation and bucking doesn’t cause internal damage, it can be extremely disconcerting to drive while these symptoms are present. It can also compromise your safety on the road. Regular maintenance is the best way to protect against hesitation and bucking. Make sure you’re having the spark plugs, wires and fuel filter replaced regularly. You should also have any Check Engine light diagnosed immediately. One of our professional mechanics can troubleshoot, diagnose and repair your car, eliminating the hesitation and bucking during operation.

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Recent Car is hesitating and bucking Inspection reviews

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YourMechanic Car is hesitating and bucking Inspection Service

Average Rating

4.9/5

Number of Reviews

55

Rating Summary
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Brian

Brian

21 years of experience
75 reviews
Brian
21 years of experience
Dodge Caravan - Car is hesitating and bucking - Jacksonville, Florida
Brian came on time. He spent a good time with me explaining the issues. He seemed very knowledgeable. I would use his services again without any hesitation.
Dodge Dart - Car is hesitating and bucking - Jacksonville, Florida
He really took the time to listen to my concerns with my car and was dedicated to replicating the problem so he could figure out what it was. He also reassured me when I expressed nervousness in driving my car because of the mysterious issue. I can’t even begin to express how much that meant to me.
Michael

Michael

13 years of experience
379 reviews
Michael
13 years of experience
Kia Optima - Car is hesitating and bucking - Kennesaw, Georgia
Michael diagnosed my car and spent time discussing what my options were. Since it was transmission related he couldn’t fix my issue but he was so helpful and honest and gave me great suggestions on what to do next.
Chevrolet Astro - Car is hesitating and bucking - Marietta, Georgia
Ke knows what I need, and understands older (and sometimes valuable) older cars. I have other newer cars as well, but his willingness to address my older car issues is unique and appreciated.
Paul

Paul

16 years of experience
120 reviews
Paul
16 years of experience
Ford Focus - Car is hesitating and bucking - Land O' Lakes, Florida
Fuel issues and noise while driving; Very informative inspection, extremely knowledgeable mechanic, diagnosed problems that multiple other mechanics could not. Overall very happy with inspection and looking forward to having work done.
Chevrolet Suburban 1500 - Car is hesitating and bucking - Tampa, Florida
Paul is the consummate mechanic! He was early, professional, and knowledgeable! My car is back in action after other mechanics failed. Thank you so much!!
Noni

Noni

20 years of experience
17 reviews
Noni
20 years of experience
Jeep Liberty - Car is hesitating and bucking - Cambria Heights, New York
Fantastic Very honest and trustworthy I would definitely recommend him too all my family and friends

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