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: Q: Power problems

You may have defective ignition module or distributor pip sensor. I would suggest having a mechanic like one from YourMechanic check the problem for you or you can start by replacing the ignition module and see if it helps? You...

Q: Q: Wheel bearing

Wheel bearings can be difficult to locate which of the four is making the noise. I've spent to much time crawling around a car while another technicians drives attempting to figure out which bearing is making the noise. You can...

Q: Ignition timing out of sequence.

Hi there. First you would need to know the firing order for the electronics on the distributor. The distributor number one on the firing order is the terminal on the right side at the front of the vehicle. Since you...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...