Skip the auto shop - Our mechanics make house calls

Q: My truck won't shift out of first gear.

asked by on

Yesterday we went mudding and the truck was fine & this morning i was on my way somewhere and it was running perfectly fine then i out it in reverse and out of nowhere the truck didn't want to shift out of first gear anymore. there's only a certain speed limit i can go.
My car has an automatic transmission.

This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, 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. This type of problem is amplified any time the transmission is low on fluid creating a drop in hydraulic pressure.

This may also suggest a failing speed sensor. The transmission speed sensor is a magnetic sensor that provides this information, allowing the transmission to shift smoothly. The sensor counts the internal number of revolutions of the transmission and transmits that information to the transmission control unit, where the data is used to determine the rotational speed. As the rotation increases, the control unit directs the changing of gears. When this is not working properly, this may cause the transmission to shift erratically or in some cases not at all. I would recommend having an expert from YourMechanic come to your location to take the car for a test drive to more specifically determine the cause for this.

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

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: I shift car in reverse and will go into drive but haft to rev a few times for it to engage

Unfortunately, this generation Taurus is notorious for automatic transmission failure, even more so because it's a pre-1996. 1996 models and later had an update and upgrade to the most common internal failure part. Most transmissions from the 1995 and earlier...

Q: No Oil Pressure Sensor light is on.

Those sensors occasionally fail and/or get plugged up. It's quite possible debris got entrained when you performed the repair on the oil pan and debris made its way to the filter screen on the sensor causing a false reading of...

Q: No light on a gear shift

Hello, thanks for writing in about your 2013 Chevrolet Spark. Yes, there should be some form of illumination there. It is more than likely a bulb issue. It should be a pretty straight forward fix which a technician, or possibly...

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...
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...
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.