Q: Hiccup while accelerating

asked by on

Just today I noticed an acceleration hiccup. Every forum says something different. So whenever I accelerate over 2000 rpms, whether is 20 mph or 60, I notice a hiccup, or a jerk in the acceleration and it won't accelerate unless I do it gradually under 2000 rpms.. what could be the cause of this?

My car has 119000 miles.
My car has an automatic transmission.

There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially a bad fuel pump. This may also be caused by a faulty MAP sensor which relays variances in manifold pressure (indicating changes in engine load/acceleration) to the computer. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.

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
  1. Home
  2. Questions
  3. Hiccup while accelerating

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: Heat only works when accelerating

Hello. I suspect the heater control valve is the culprit here. Most likely only opening partially. By only being partially open, it allows more hot water to circulate when the engine load and RPM are higher, as when you accelerate,...

Q: Front turn signals are not working

The only reason I can think of for this to happen is if aftermarket bulbs were used and they were not the right ones. The car should only blink fast like that when the bulb has failed to let the...

Q: I am buying a used car, and the alternator is getting replaced in the vehicle before I get it. Does this raise any red flags?

A replacement of the alternator should not raise a red flag bu I would recommend getting the vehicle (inspected) [https://www.yourmechanic.com/services/pre-purchase-car-inspection] before you purchase it by a mechanic like one from YourMechanic. This will insure you do not have major problems...

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...
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...
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...