Clutch A Pressure Low
The P2819 code means the vehicle's onboard diagnostic system has detected: Clutch A Pressure Low. This is a critical severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $1000 - $3500 (parts and labor)
Read and clear transmission codes. Many trans codes are caused by low or burnt fluid -- check level and color before assuming the worst.
Basic scanners only read engine codes. This reads transmission, ABS, and airbag too.
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Common Symptoms
- Clutch A slipping in multiple gears
- Wide range of shift quality issues
- Transmission overheating from slippage
- Loss of forward drive in severe cases
Probable Causes (Ranked by Likelihood)
- Clutch A piston seal deteriorated Very High
- Main line pressure drop affecting clutch A High
- Clutch A apply solenoid underperforming Moderate
- Clutch A accumulator leak Low
Frequently Asked Questions
Is clutch A more critical than other clutches?
Clutch A is often the forward clutch used in most forward gears. Low pressure in clutch A can affect multiple gear ratios, making it a high-impact failure.
Can main line pressure affect individual clutch pressure?
Yes. If overall line pressure is low, all clutch circuits will be affected. Always check main line pressure before diagnosing individual clutch pressure issues.
What is a clutch accumulator?
An accumulator is a spring-loaded piston that absorbs initial pressure spikes when a clutch applies, providing a smoother engagement. A leak reduces available pressure.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
-
Measure clutch A apply pressure
-
Check main line pressure
-
Test clutch A solenoid function
-
Inspect clutch A accumulator condition
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Commonly Affected Vehicles
- 2010-2020 Toyota RAV4
- 2012-2019 Honda CR-V
- 2008-2018 Ford Escape
- 2011-2020 Chevrolet Equinox
Related Codes
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