Skip the auto shop - Our mechanics make house calls

Q: Throttle delayed at high rpms

asked by on

Hi. This is my first time posting on a site like this so bear with me. A while ago I replaced my alternator and ever since then if I take my foot off the throttle above 3000 rpms and step on it again it sounds like it wants to accelerate but there is a few seconds delay before any noticeable power is produced. Sometimes the power doesn't come at all. I passed someone today and tge acceleration was pathetic. Below 3000 rpms it seems to have normal throttle response. Any idea what this could be.
My car has a manual transmission.

I’m curious if your Check Engine Light on. It sounds like there may be an issue with either the throttle position sensor offering false readings to the computer or there’s an issue with the reaction of the throttle plate. There can be carbon buildup inside the throttle bore causing the throttle plate stick a little especially when the plate slams shut then you try to open it again. If you’d like to get this fixed, consider hiring an experienced technician like the mobile experts we have here at YourMechanic for a proper diagnosis of your loss of power.

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!
  1. Home
  2. Questions
  3. Throttle delayed at high rpms

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: When putting foot on accelerator, brake, or shifter, car dies

There are some technical bulletins for replacing the ECU on your 2005 Kia Amanti for drivability problems. With what you said, what they want to do is along these lines. They may be able to reprogram the computer or need...

Q: Throttle issue

What you are describing sounds like hesitation. The most common cause of hesitation is the MAF, or Mass Air Flow sensor. This sensor is solely responsible for measuring the air going into the engine, and with the air, the computer...

Q: 2002 Elantra: ratting, sudden loss of power and stalling! Pls help stuck on a mountain.

It sounds like you may have a cooling system leak that may have caused a hose to burst. The more concerning question is the brown colored coolant that came from the leaking hose. This often times indicates that there may...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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...