Skip the auto shop - Our mechanics make house calls

Q: Throttle issue

asked by on

I am having a throttle issue, as it's very slow to engage, and then goes hard.

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 must add fuel. If this sensor is dirty or malfunctioning, the proper amount of fuel will not be added. Also, the intake hose from the MAF to the intake manifold should be checked; there could be cracks, improper connection, unplugged hoses, etc., which would all affect the reading, and produce hesitation. I recommend having a certified technician, such as one from YourMechanic, come out to your car’s location to run a diagnostic inspection of your hesitation issue, and suggest the best path to repair.

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: Possible wheel bearing problem

Hub bearing failures are common. The description you gave is very typical of one. Bad hub bearings can sometimes vary in noise intensity when you turn left or right. This happens because more pressure is put on the bearings during...

Q: When car idles in Drive and any electrical feature is activated, it almost stalls

The throttle plates may need to be cleaned and the idle control actuator cleaned to see if this helps first. The engine should be checked for any vacuum leaks at the intake hoses. The computer would need to be checked...

Q: Ticking noise becoming faster with higher RPMs

Hi there. In most cases, if this happened all of a sudden and went away after a moment, then it may just be low on oil or it may need an oil change. I would check the oil first. If...

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...
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.