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Automatic transmissions have something called a torque converter - it's a donut-shaped device between the engine and transmission, that allows the engine to rotate at a slightly different speed than the transmission, in order to build momentum, add power, etc.
Modern torque converters are designed to lock-up under certain conditions, meaning the engine and transmission become coupled, like they would be on a manual transmission. This reduces wear and is better for fuel economy, when acceleration is not needed (ie. on the highway). If the converter is "lockup hunting", that means the transmission can't decide whether it should be locked up or not, so it's going back and forth. Probably time for a Transmission Fluid change. Be sure to have them drain and replace the fluid in the torque converter as well. Or the transmission may be worn out. Another way to tell is to pull the transmission dipstick and smell the fluid. If it smells burnt, it needs immediate attention. Pulling trailers or plowing snow often will do this.
What else can I help you with?
Where is the plug for the lockup converter on 2000 dodge neon?
There isn't a drain plug on the converter.
Does 1999 dodge 5.2 have a lockup converter?
YesYes
Will a 1992 dodge Dakota transmission interchange with a 1993?
Yes but, the 92 is non lockup and the 93 is a lockup torque converter.
What is lockup solenoid?
Lockup Solenoids refer to electronic gadgets in automatic transmissions that lock the torque converter in certain circumstances, such as at highway speeds.
Location of torque converter lockup plug?
on a 200r4 or 700r4 its on the side of the transmission.
What are the advantages to a lockup torque converter?
Lower trans temps and improved fuel economy.
What wire from the ecm goes to the brake switch to disengage the converter lockup?
The wire that typically goes from the Engine Control Module (ECM) to the brake switch to disengage the converter lockup is often referred to as the "lockup release" or "converter unlock" wire. In many systems, this is usually a signal wire that connects to the brake light switch, allowing the ECM to receive a signal when the brakes are applied. This action prompts the ECM to disengage the torque converter lockup to facilitate smoother braking. However, the specific wire color and location can vary by vehicle make and model, so consulting a wiring diagram for the specific vehicle is recommended.
What is 1997 fault code p 1742 description?
it is a failure of the solenoid for the torque converter lockup in the transmisson.
On a 93 Oldsmobile Cutless Cierra the lockup torque converter doesn't work Why?
low fluid level
Will low transmission fluid level cause your transmission to jerk?
yes it will especially when the torque converter is going into lockup
Does a 350 turbo lockup work without hooking up the lockup?
Yes, a TH350 transmission can function without the lockup feature being connected. In this case, the transmission will operate in a standard non-lockup mode, meaning that it won't engage the torque converter lockup, which can affect fuel efficiency and performance at highway speeds. However, the transmission will still shift and operate normally for everyday driving. It’s advisable to connect the lockup feature for optimal efficiency and performance.
Why does your 81 Chevy 4x4 350 auto trans make a lurch and knock when it comes to a stop?
Possibly the lock-up torque converter solenoid is sticking. Disconnect the wire to the lockup converter.
