Skip the auto shop - Our mechanics make house calls

Q: Every morning or when I use my truck i put it on drive I press on the gas and the engine will rev up but the truck goes very slow

asked by on

Every morning or when I use my truck i put it on drive I press on the gas and the engine will rev up but the truck goes very slow after a while of pressing on the gas it starts going but when im at a stop it hesitates to go same thing happens when I go reverse.

My car has 138980 miles.
My car has an automatic transmission.

A: Hello. I have a couple of ideas. You mentio...

Hello. I have a couple of ideas. You mentioned it happens in the morning and this indicates the truck is cold. When the seals in a transmission get old and hard, they allow ATF to leak internally and the transmission cannot build enough pressure to move your car forward. Once the car warms, the seals soften and seal. This will affect every gear, including reverse.

I assume, when you say the motor revs, you have a tachometer and the RPM's rise but the car does not match speed. If this is the case, then the above explanation still applies. If you don't have a tachometer, but the motor just makes a loud noise as if it were revving high, this is most likely the fan clutch pulling more air through the radiator. This will make a very loud rushing sound that sounds very much like the motor is revving high. It may be that the motor is not running well when cold and lacks power.

Either way, you should have one of our qualified technicians check it out. They can come to your car's location to test the vehicle and diagnose the loss of power symptoms.

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・Save up to 30%

Get a quote

What others are asking

Q: Car hesitates, bank one and bank two too lean. 2001 Hyundai XG300.

Hello there. This is a common issue with the 2001 Hyundai XG300. There are a few possible causes for the engine to hesitate. The most common are the spark plugs, vacuum leak, oxygen sensor, fuel pump, exhaust leak, fuel filter,...

Q: Headlights randomly turn on at night.

Hello. Thank you for writing in. In order to diagnose this you may need to catch it while its happening (or replicate it and make it happen), and be ready to do some tests. You will want to start at...

Q: Whine noise only, in cabin at 2000 rpms

Hi there. It appears you're chasing a lot of potential mechanical or electrical gremlins with your 1993 Honda Accord; which is rather typical with a car more than 20 years old. There could be multiple issues that are causing these...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control 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...