Skip the auto shop - Our mechanics make house calls

Q: Used torque converter that came with Transmission and won't change into high gear.

asked by on

Exchanged v-6 engine for 305ci v-8 engine, with transmission that would not change into high gear, left torque converter that came on that engine, & used my transmission that came with my v-6 engine, & now transmission won't change into high gear. Could it be that the torque converter was bad from the beginning, & I need to used converter that came with my transmission from v-6.??

My car has 186000 miles.
My car has an automatic transmission.

Hi there. A worn torque converter will not cause the transmission to just loose the top gears only. A worn torque converter will cause the transmission to not drive or to have a lack of power to the wheels. The transmission is most likely slipping the 3 / 4 clutch in your transmission. I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose your transmission.

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!
  • Home
  • Questions
  • Used torque converter that came with Transmission and won't change into high gear.

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: Sensor problem? Transmission overheating

Hi there. Your Focus has what is called a dual-clutch "automatic" transmission. Mechanically, it is a manual transmission with 2 clutches and servos, and other electronics used to handle the clutches and shifting such that it acts like a classic...

Q: When replacing the Longitudinal Torque Module with a new, OEM part do I need to have it programmed or re-calibrated after?

The new torque module are programmed and they have software already installed. This is like a computer that is ready for use that has software on it, but when it is turned on it prompts you to set up the...

Q: The dvc light keeps turning on and the car keeps on dying and when it dies thats when the light goes on more

This relates to the dynamic vehicle control which monitors the control of the vehicle. When it senses the vehicle is potentially out of control it cuts power to the car. It sounds like yours may have a bad control unit...

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...