Skip the auto shop - Our mechanics make house calls

Q: Accelerating from red light, car jerks; also at 25-35 mph

asked by on

After sitting at a red light, I accelerated and the car jerked; then it was a few seconds before it would accelerate again. It happened again when I was going between 25-35 mph. This keeps happening. I have been to the dealership “five” times and they can't find what is causing this. I was determined so I have gone back, yet again. This time they told me that the transmission should be replaced. Before I agree to that, I would like your professional diagnosis and do you agree regarding the transmission needing replacement?

A: Hello there. Many different faults can caus...

Hello there. Many different faults can cause the vehicle to jerk and have acceleration issue. The most likely cause of these are spark plugs, battery, alternator, fuel pump, low transmission fluid, MAF sensor, vacuum leak, exhaust leak or oxygen sensor. All of these would need to be ruled out before the transmission was replaced. If the transmission is failing, there will generally be a Check Engine Light that indicates an internal fault within the transmission. A qualified technician, such as one from YourMechanic, will be able to diagnose the jerking issue and perform any repairs required.

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 leans on rear passenger side

I beleive that this vehicle has air suspension on all four wheels. If your vehicle is sagging on only one corner of the vehicle, it is likely that the air strut on that particular corner has a leak. The air...

Q: Car jerks while driving and warning lights are on - 2001 Ford Focus

The major causes of sputtering or jerking while driving are caused by fuel, spark, or electrical issues. Due to the number of emergency warning lights that flash, it is likely a power supply issue. This can be caused by a...

Q: Power steering warning on

Hello. Most of the time, this is caused by a voltage issue. I would start by load testing the battery and the alternator. If there are any low voltage conditions, then this will occur. If there are not any, then...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...