Skip the auto shop - Our mechanics make house calls

Q: Car jerking upon acceleration, sluggish engine

asked by on

My car has gone around 170,000 miles. When I apply the gas pedal, the car starts jerking and sputtering. I regularly change the oil. I had all spark plugs replaced. Also, I changed the rotor and cap. After that, I had no issues with the car for a couple of months. However, the same problems are happening again. When I try to give it gas, the engine loses power and occasionally jerks. If I go uphill from being at a stop, it gets even harder to drive it. The car runs okay after it gathered some speed. What should I do?

A: You will need to have the ignition and fuel...

You will need to have the ignition and fuel systems checked. The fuel pump and filter should be checked for correct pressure and flow due to clogged filter or pump pressure. The ignition should be checked to see if the coils are putting out enough spark or the spark is weak. If the spark is weak or the wires are arching to ground, then it can misfire and jerk. I recommend having these systems checked in order to diagnose and service the jerking issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Car not moving once in gear

Hi. This transmission has many technical bulletins for upgraded. The internal transmission gears and springs could be causing your problem. The transmission would need to be inspected and possible replaced or overhauled with major mechanical parts. I recommend you have...

Q: i'm not getting the fuel mileage I got when I first purchased the car

If your fuel mileage has dropped, first check for any leaks under the vehicle. If there are no visible leaks, then check the spark plugs and see what color they are. If they are burned and white, then the spark...

Q: Engine loses power, revs high, cannot shift gears - 2014 Nissan Rogue

Hello. It sounds like there is an intermittent problem with the throttle position sensor or the idle air control valve. These two sensors are made into the throttle body and the throttle body assembly would have to be replaced in...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.