Q: Q: Hesitation when accelerating

asked by on

Only on drive it reves up and down. Until 30 mph. Then boges down till aout 40 mph.. Then seems to run fine.just goes up and down. It just started all of a sudden.. Truck has always ran good and strong.. Still runs strong.. Just has problems at take of. Changed the tps that did nothing

My car has 260000 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. Other things like a vacuum leak or faulty ignition components such as bad spark plugs or spark plug wires may also cause this kind of hesitation when accelerating. 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. Q: Hesitation when 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: Need to know if I can use Bosch 4 hole injectors for my truck.

Hi there. I recommend using Bosch D3 injectors over older metal body injectors. The 4-hole spray tips atomize fuel much better than your stock injectors. The injectors have flow balancing to ensure that each cylinder gets the same amount of...

Q: Engine stalling when in gear.

This is a transmission internal issue of trying to go into reverse and drive at the same time from a leaking valve body.

Q: Q: Misfire

Hi there. From the description you have given, your vehicle has a combination of problems. The erratic tachometer/rpm gauge could be at fault. The tachometer signal from the ignition module could be erratic and may also be the cause of...

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...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.