P0733 on Chrysler
Gear 4 Incorrect Ratio
P0733 on Chrysler vehicles indicates gear 4 incorrect ratio. Au7o has documented this code across 1 Chrysler model — most commonly on Pacifica. This code indicates the transmission control module found that the actual gear ratio in 4th gear is outside the acceptable range for that gear. It is detected by comparing transmission input speed against output speed while 4th gear is engaged. A mismatch typically signals the transmission is slipping in 4th gear or that a control/hydraulic fault is preventing proper engagement.
Common Causes of P0733
- •Low or contaminated transmission fluid
- •Worn 4th-gear clutch packs or bands
- •Failing shift solenoid for 4th gear
- •Valve body or line pressure issues
- •Internal transmission mechanical wear
- •Restricted transmission filter
- •Faulty input or output speed sensor
P0733 on Chrysler by Model
Chrysler Pacifica(1 issue)
- Transmission Harsh 3-4 Shift and Shudder (9-Speed)2017-2025
The ZF 9HP 9-speed automatic transmission in the Pacifica exhibits harsh or jerky 3-4 shifts, shuddering during light throttle acceleration at 25-40 mph, and occasional hesitation when downshifting. The 9-speed has had multiple software calibration updates since launch, and the adaptive learning can become confused by varied driving patterns. Cold weather worsens the harsh shifting. The issue persists across multiple model years despite ongoing TSBs.
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View P0733 across all makes →Frequently Asked Questions
What does P0733 mean on Chrysler?▼
P0733 stands for "Gear 4 Incorrect Ratio." This code indicates the transmission control module found that the actual gear ratio in 4th gear is outside the acceptable range for that gear. It is detected by comparing transmission input speed against output speed while 4th gear is engaged. A mismatch typically signals the transmission is slipping in 4th gear or that a control/hydraulic fault is preventing proper engagement. On Chrysler specifically, this code is documented across 1 model.
What causes P0733 on Chrysler vehicles?▼
Common causes on Chrysler: Low or contaminated transmission fluid, Worn 4th-gear clutch packs or bands, Failing shift solenoid for 4th gear, Valve body or line pressure issues, Internal transmission mechanical wear. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0733 on a Chrysler?▼
Repair costs vary widely depending on the root cause and specific Chrysler model.
Which Chrysler models have P0733 documented?▼
Au7o has documented P0733 on 1 Chrysler model: Pacifica.