P0237 on 2015-2024 Ford Transit — Turbocharger Boost Sensor A Circuit Low
1 vehicles · 1 makes · $1,200-$3,500 repair
How to diagnose and fix P0237: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Ford Transit · 2015–2024
The Ford Transit 350/350 HD with the 3.5L EcoBoost twin-turbocharged V6 experiences turbocharger failures from inadequate lubrication, carbon buildup in the turbo housings, wastegate actuator failure, and turbo bearing wear. OMS AutoParts and Autodoc document common Transit turbo problems including loss of power, turbo lag, unusual whistling/whining/grinding noises, and excessive smoke. The commercial use of Transit vans (frequent stop-and-go, high idle hours, heavy loads) accelerates turbo wear beyond what passenger vehicle applications typically experience. FordTransitUSAForum.com documents a case of turbo and manifold failure at 38,000 miles on a 3.5L EcoBoost Transit 350. RepairPal estimates turbocharger assembly replacement between $1,650 and $2,210 depending on the Transit model variant.
Common Symptoms
- Loss of power or reduced boost
- Excessive turbo lag (slow boost response)
- Whistling, whining, or grinding noise from turbo area
- Excessive blue or black smoke from exhaust
- Check engine light with boost-related codes
- Oil leak from turbo drain or feed lines
- Burning oil smell from engine bay
- Reduced fuel economy
How to Fix
For wastegate actuator failures (most common turbo issue): replacement of the actuator alone ($200-400) may resolve boost control issues without full turbo replacement. For internal turbo bearing failure or impeller damage, complete turbo replacement is required. RepairPal estimates $1,650-2,210 for turbo assembly replacement. For Transit commercial vehicles, change oil every 5,000 miles (not the factory 10k interval) and allow 30-60 seconds of idle time before shutdown after sustained driving to allow turbo bearing oil to circulate. Never shut off a hot turbocharged engine immediately after towing or hard driving.
Sources for this issue (1)
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P0237 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0237 mean?
P0237 stands for "Turbocharger Boost Sensor A Circuit Low." This code sets when the turbocharger (or supercharger) boost pressure sensor 'A' reports a voltage that's lower than its normal operating range. That sensor measures how much boost the engine is producing so the computer can correctly control fueling, timing, and the wastegate. A signal that's too low usually means a wiring fault, short to ground, or a failed sensor rather than an actual loss of boost, and the engine may run with reduced power for protection. It generally points to a problem in the sensor or its circuit.
What are the most common causes of P0237?
The most common causes of P0237 are: Faulty turbocharger boost pressure sensor, Signal wire shorted to ground, Open in the sensor signal or reference voltage wire, Corroded or damaged sensor connector, Loss of 5-volt reference from the ECM/PCM, Disconnected boost pressure reference hose. The specific cause varies by vehicle.
How much does it cost to fix P0237?
Repair costs for P0237 range from $1,200 to $3,500, depending on the vehicle and root cause.
Which vehicles are affected by P0237?
Au7o has documented P0237 across 1 vehicle models from 1 manufacturers: Ford.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.