P0742 on Jeep
Torque Converter Clutch Circuit Stuck On
P0742 on Jeep vehicles indicates torque converter clutch circuit stuck on. Au7o has documented this code across 3 Jeep models — most commonly on Cherokee, Grand Cherokee, Renegade. P0742 means the torque converter clutch (TCC) circuit is stuck on, meaning the lockup clutch that mechanically links the engine to the transmission stays engaged when it should release. The computer commands the clutch on and off, and when it detects the converter clutch remaining applied, it sets this code. The classic symptom is the engine stalling when coming to a stop, similar to driving a manual without pushing the clutch in, along with possible harsh shifts or poor fuel economy. It points to a hydraulic or solenoid problem inside the transmission rather than the engine. Typical repair costs on Jeep range from $150 to $6,500, depending on the specific model and root cause.
Common Causes of P0742
- •Stuck or failed torque converter clutch solenoid
- •Stuck valve in the valve body (TCC apply valve)
- •Contaminated or degraded transmission fluid
- •Internal transmission hydraulic leak holding the clutch on
- •Wiring or connector fault to the TCC solenoid
- •Faulty torque converter
- •Dirty or clogged transmission filter
P0742 on Jeep by Model
Jeep Cherokee(1 issue)
- ZF 9-Speed Transmission Shifting Problems2014-2019
The ZF 948TE 9-speed automatic transmission exhibits harsh shifting, delayed engagement, and unexpected shifting into neutral. Early models (2014-2015) experienced the most severe issues. The transmission can unexpectedly shift into neutral while driving, creating a crash risk.
Jeep Grand Cherokee(1 issue)
- 8-Speed Transmission Shifting Issues2014-2021
The ZF 8HP 8-speed automatic transmission can exhibit harsh shifts, hesitation, or erratic behavior. Some owners report the transmission hunting between gears or feeling like it's in the wrong gear for the driving conditions.
Jeep Renegade(1 issue)
- ZF 9-Speed Automatic Transmission Harsh Shifting / Stalling2015-2023
The ZF 9HP48 9-speed automatic transmission suffers from delayed shifts, harsh gear changes, unexpected stalling, and confusion at low speeds. NHTSA recall covered 329,540 vehicles for insufficient crimps in the transmission wire harness that could cause unexpected shift to neutral. The transmission struggles with shift logic at low speeds, causing a jerky driving experience. TSBs in 2017 addressed bumps in 4th gear and harsh 4-5 upshifts.
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What does P0742 mean on Jeep?▼
P0742 stands for "Torque Converter Clutch Circuit Stuck On." P0742 means the torque converter clutch (TCC) circuit is stuck on, meaning the lockup clutch that mechanically links the engine to the transmission stays engaged when it should release. The computer commands the clutch on and off, and when it detects the converter clutch remaining applied, it sets this code. The classic symptom is the engine stalling when coming to a stop, similar to driving a manual without pushing the clutch in, along with possible harsh shifts or poor fuel economy. It points to a hydraulic or solenoid problem inside the transmission rather than the engine. On Jeep specifically, this code is documented across 3 models.
What causes P0742 on Jeep vehicles?▼
Common causes on Jeep: Stuck or failed torque converter clutch solenoid, Stuck valve in the valve body (TCC apply valve), Contaminated or degraded transmission fluid, Internal transmission hydraulic leak holding the clutch on, Wiring or connector fault to the TCC solenoid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0742 on a Jeep?▼
Repair costs on Jeep range from $150 to $6,500, depending on the specific model and root cause.
Which Jeep models have P0742 documented?▼
Au7o has documented P0742 on 3 Jeep models: Cherokee, Grand Cherokee, Renegade.