Skip the auto shop - Our mechanics make house calls

Q: Truck shakes when accelerating from a stop.

asked by on

My truck starts shaking when I accelerate from a complete stop. Once I get going it's fine. When I lightly press the gas it shake and when I really press the gas it revs high and barely moves like it's stuck in gear. I put a bottle of Lucas in there last night and it shifts fine, it's just getting going is the issue.

My car has 200000 miles.
My car has an automatic transmission.

Hey there. This may be a sign of a dirty or failing mass air flow sensor or potentially low fuel pressure. The mass air flow sensor monitors the air intake as it is mixed with fuel prior to being injected into the motor.

As this reads, the air intake it relays this info to the car’s computer which then makes fuel adjustments accordingly. When this is not working properly, this can cause an unbalanced load of fuel and air to be supplied to the motor causing poor acceleration as you describe.

This may also be related to low fuel pressure, which may also cause this type of hesitation in accelerating due to the lack of adequate fuel supply to the motor as you accelerate. If you would like to have this taken care of, a certified professional from YourMechanic can come to your car’s location to inspect the shaking and acceleration problem and proceed with the proper repairs.

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: Car is shifting hard using a lot of gas and getting hot

Hey there. This may be due to a few different things such as a transmission speed sensor, a failing transmission control module, or potentially low transmission fluid. As you may know, the transmission uses hydraulic pressure created by the...

Q: Car sputtering

Hi there. A sputtering vehicle is usually a loss in fuel pressure or not enough fuel pressure being delivered. A certified mechanic can run a computer diagnosis in order to precisely diagnose your vehicle's sputtering problem.

Q: Car is vibrating when accelerating - 2003 Chevrolet Trailblazer

Hi there. There are several possibilities for the vibration and lack of power upon vehicle acceleration. The missing fuel cap should not affect drivability. Assuming the Check Engine Light has been on for the missing fuel cap, this leads me...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...