P1247
Turbo Boost Pressure Low (Diesel)
Findings, check these first
- Boost leak in intercooler pipes or boots
- Sticking turbo vanes (6.0L) or wastegate
- Clogged air filter
- Exhaust leak ahead of the turbo
- Failing MAP/boost sensor
Standard procedure
- Pressure-test the boost tract for leaks
- Inspect intercooler boots for splits and oil
- Check air filter restriction
- Inspect the exhaust manifolds for leaks
- Verify boost sensor accuracy before turbo work
Code lookup
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Sources and review
Review: checked against the recorded source material.
- OBDII.pro: P1247 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1247: Turbo Boost Pressure Low
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- P1247 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1247: Turbo Boost Pressure Low
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.
Last updated 2026-09-05.
Report a correction for P1247. Include your vehicle, the issue and a source if you have one.
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