Transmission Fluid Pressure Too Low
The P2807 code means the vehicle's onboard diagnostic system has detected: Transmission Fluid Pressure Too Low. This is a critical severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- hard
- Estimated cost
- $200 - $3000 (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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What Are the Symptoms of P2807?
- All shifts slipping
- Delayed engagement in all gears
- Transmission making whining noise
- No movement when gear is selected
What Causes P2807? (Most Likely First)
- Low transmission fluid level Very High
- Transmission fluid pump failure High
- Major internal hydraulic leak Moderate
- Pressure regulator stuck open Low
Can I Still Drive with P2807?
No — stop driving. P2807 is rated critical severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
Frequently Asked Questions
Can low fluid cause total loss of movement?
Yes. The transmission pump needs fluid to create hydraulic pressure. Without adequate fluid, no clutches can engage and the vehicle will not move.
What causes a whining noise with low pressure?
The transmission pump is cavitating, meaning it is trying to pump air instead of fluid. This creates a high-pitched whining noise.
How much fluid does a typical transmission hold?
Most automatic transmissions hold 8 to 16 quarts depending on the design. Even being one or two quarts low can cause significant issues.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P2807?
-
Check transmission fluid level immediately
-
Perform line pressure test in all ranges
-
Listen for pump whining indicating cavitation
-
Check for external fluid leaks
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)
Which Vehicles Commonly Get P2807?
- 2010-2020 Toyota Camry
- 2012-2019 Honda Civic
- 2008-2018 Ford F-150
- 2011-2020 Chevrolet Silverado
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