Q: Transmission slow to engage into 1st from stop

asked by on

My car hesitates to engage into first gear from a complete stop. This usually occurs when I am at a stop for an extended time. If im just stopping and going it will not happen. The previous owner had not serviced the fluid. I ran a drain and fill twice. Could the tranny be bad? What electrical components can I diagnose? TPS? PNP?

Thank you, Frank R.

My car has 124000 miles.
My car has an automatic transmission.

Hello. 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. This may also be related to a faulty transmission control module. The transmission control module (TCM) helps regulate fuel efficiency and power while storing information about the transmission system in its memory.

A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such as vehicle speed sensors, wheel speed sensors, throttle position sensors, turbine speed sensor, and transmission fluid temperature sensors that all direct information to it in order for it to perform it’s function. If you would like to have this scoped out by a professional, a certified technician from YourMechanic can come to your car’s location to diagnose the shifting problem.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Transmission slow to engage into 1st from stop

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: Cannot hold rpm in neutral, rpm bounces in rhythm

This may be related to a couple of different possibilities. What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior...

Q: Speed sensor p01443 code

Hello. The speed sensor is located on the left rear of the transmission. It should be accessible from the bottom of the transmission. The catalytic converters should not have to be moved in order to get to the sensor. Most...

Q: Q: Stuck in Park

The Aveo's computer needs to "see" the brake light switch input, in order to switch out of park. With the key on and engine off, the brake lights need to be checked to see if they are coming on when...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.