Skip the auto shop - Our mechanics make house calls

Q: Car jolts on starting and sometimes is fine

asked by on

Almost every time, but not all the time, when I start driving my car, there is a jolt forward, as if the engine were going or the transmission. Other times I drive and there are no problems at all. When the jolting happens, it feels almost like my car is trying to shut off. I’m thinking it might be the fuel. The filter and serpentine belt have both been replaced. It’s been 30,000 miles since I had a tune up, so I might need to get that done. What do you suggest I do to fix this?

A: The vehicle may have more than one problem ...

The vehicle may have more than one problem and would need to be thoroughly checked in order to properly diagnose the problem. I would recommend having a certified mechanic test the system's computer and perform a road test to see if the problem can be isolated to the engine or transmission.

You may just have broken motor mounts or transmission mounts, these could cause jerking when accelerating. It would not cause the engine to shut off, unless the wire harness, near the firewall, is damaged by the shifting engine.

I'd recommend getting some help from a certified mechanic, they will be able to properly diagnose your cars jolting symptoms firsthand and make the necessary repairs.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: How do you fold down the rear seats in a 2012 Ford Escape?

Your car is equipped with folding rear seats. This provides a great deal more room for carrying larger items or lots of cargo, at the cost of eliminating seating in the back. Here’s what you need to do: Make...

Q: How Do the Cylinder Numbers Impact Vehicle Performance and Reliability?

Engines in today’s automotive vehicles come in different sizes and number of cylinders depending on the vehicle size and weight or the work the engine is expected to do. The engine may also be used for performance or for better...

Q: Car won't start

If you went through water and the engine ingested it, you may have damaged internal engine parts. You should check the air filter to see if it got wet and replace it. Have the engine compression checked to make sure...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.