Q: Automatic transmission not shifting properly.

asked by on

My automatic transmission will only shift into reverse or first gear.

The computer on these cars are prone to interference if the owner has put on an aftermarket code scanner to the ALDL connector to scan the computer. Some owners use these to monitor system functions or for other reasons. These aftermarket testers have been known to cause many problems with the computer or components in the car like transmission, ABS, Engine and other items that require use of the communication lines that this aftermarket tester also uses. Try to remove the tester and restart the engine and road test for problem to be fixed. I recommend to have a qualified mechanic check it out such as one from YourMechanic.

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. Automatic transmission not shifting properly.

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: Q: Check engine light on

There are a wide variety of reasons why the Check Engine Light switch may be still on. In this era of Honda pilots, there was a known issue related to the transmission torque converter clutch solenoid which controls the engagement...

Q: Passenger door won't open

Hello. It is possible that the door actuator is stuck in the lock position, causing the passenger door to jam. It is also possible that there is a problem with the door latch; if the latch won’t release when the...

Q: Detect burning smell.

You may have hit a plastic bag and it got on your exhaust giving a burning smell. Only an inspection to check this or if it is another issue will require a physical inspection of your exhaust.

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...
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...