Reddit Validated Operating System Error Code P0867: How to Fix It
Medium 1-2 hours (basic checks) to 4-6 hours (pump replacement) High Severity
Verified June 2026
- Error Code
- P0867
- Brand
- Reddit Validated
- Product Type
- operating_system
- Severity
- High
- DIY Difficulty
- Medium
- Estimated Fix Time
- 1-2 hours (basic checks) to 4-6 hours (pump replacement)
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Tools You'll Need
- Transmission fluid dipstick
- Transmission fluid (check owner's manual)
- Rags
- Jack and jack stands or ramps
- Transmission pressure gauge
- Socket set
- Transmission filter and gasket (if replacing)
How to Fix Error Code P0867
-
Check Transmission Fluid Level
Do not overfill. Use only the approved fluid type. -
Inspect for Leaks
Transmission fluid is hot; let the engine cool before touching components. -
Verify Transmission Pump Pressure
Do not run the engine if the transmission fluid level is extremely low. -
Replace Transmission Fluid Filter (If Equipped)
Disconnect the battery and ensure the vehicle is secure on jack stands. -
Replace Transmission Fluid Pump
Transmission removal requires specialized tools and knowledge. Improper repair can lead to transmission failure.
Parts You May Need
Transmission fluid
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Transmission filter
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Transmission fluid pump
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Transmission fluid
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Transmission filter
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Transmission fluid pump
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission fluid pump
Check Price on Amazon
Transmission fluid
Check Price on Amazon
Transmission filter
Check Price on Amazon
Transmission fluid pump
Check Price on Amazon
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When to Call a Professional
If you are uncomfortable checking the transmission fluid or performing pressure tests, or if the pump needs replacement, take your vehicle to a certified mechanic. Overhauling the transmission requires expertise.Frequently Asked Questions
Can I drive with error code P0867?
It's not recommended. Low transmission fluid pressure can cause slipping, overheating, and permanent damage. Have it checked as soon as possible.
How do I know what transmission fluid to add?
Check your owner's manual for the recommended fluid type (e.g., Dexron III, Mercon V). Using the wrong fluid can damage the transmission.
Will adding transmission fluid fix error P0867?
Yes, if the error is caused by low fluid level. If the fluid level is correct, the issue may be a failing pump or clogged filter.
How much does it cost to fix error P0867?
If it's just low fluid, the cost is minimal (fluid and time). If the pump needs replacing, expect $500–$1500 depending on the vehicle.
What does error code P0867 mean?
It stands for 'Transmission Fluid Pressure Low.' It indicates the transmission fluid pressure is below the expected range, requiring immediate inspection.