Skip the auto shop - Our mechanics make house calls

Q: Truck accelerating slowly.

asked by on

My vehicle is shifting gears (I assume) while accelerating harder than normal. It takes longer for my truck to get up to speed, and it also makes a loudish revving noise when I accelerate. RPM while vehicle is stopped is less than 1×1000. What could be the issues?

My car has 207294 miles.
My car has an automatic transmission.

Hey there. This may be a sign of a faulty transmission control solenoid. Modern automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car’s computer activates a transmission solenoid, which directs transmission fluid into the valve body to engage the correct gear. When this is faulty or not working properly, this can cause a delay in gear shifting or in some cases cause the car to not shift at all. I would recommend having an expert from YourMechanic come to your location to diagnose the acceleration problem and determine exactly what needs to be done.

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: My car has a rough idle, cuts off sometimes at a complete stop, and hesitates during acceleration

Hi - this could be a problem with the idle control valve, either dirty or failing. Leaking fuel injectors, clogged air filter, or low fuel pressure might also cause the symptoms you have noticed. I would recommend having a...

Q: Battery light is on.

Hi there. Either the drive belt to the alternator is slipping at low rpm's or the alternator is not producing enough voltage and amperage at low rpm's. Check the drive belt tensioner and see if it seems loose and not...

Q: My car downshifts in low gear and the neutral light blinks while driving - 2002 Mitsubishi Eclipse

Hello. A flashing neutral light is an indicator that the computer has detected a fault with the transmission's electronic control system. The first thing I would do is check the vehicle's transmission fluid to make sure that it is at...

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...
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.