P3075 on 2020-2024 Buick Encore GX — Engine Coolant Pump Low Current Performance
1 vehicles · 1 makes · $600-$1,500 repair
Most Reported On
P3075 is an OBD-II diagnostic trouble code meaning “Engine Coolant Pump Low Current Performance.” General Motors powertrain code. On engines with an electrically driven or electrically assisted coolant pump, the ECM monitors the current the pump draws as a proxy for how much coolant it is actually moving. P3075 sets when engine coolant pump current falls outside its calibrated range for more than about three seconds — the pump is drawing too little current, which means it is not moving the expected volume of coolant. GM describes the resulting condition as engine coolant flow too low; the pump is often working correctly and the real problem is that it has nothing solid to pump, because the system has lost coolant or has air in it. This code is most commonly reported on 2020-2024 Buick Encore GX, with repair costs ranging from $600 to $1,500.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
P3075 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does P3075 mean?
P3075 stands for "Engine Coolant Pump Low Current Performance." General Motors powertrain code. On engines with an electrically driven or electrically assisted coolant pump, the ECM monitors the current the pump draws as a proxy for how much coolant it is actually moving. P3075 sets when engine coolant pump current falls outside its calibrated range for more than about three seconds — the pump is drawing too little current, which means it is not moving the expected volume of coolant. GM describes the resulting condition as engine coolant flow too low; the pump is often working correctly and the real problem is that it has nothing solid to pump, because the system has lost coolant or has air in it.
What are the most common causes of P3075?
The most common causes of P3075 are: Low coolant level from an external leak, Air trapped in the cooling system after a coolant service or a leak, letting the pump cavitate, Leaking plastic coolant control valve / integrated water pump assembly or its housing — a known failure point on GM 1.2L/1.3L/2.7L engines, Leaking radiator hose connection, thermostat housing or radiator, Electrical fault in the coolant pump circuit — wiring, connector or failed pump motor, Stuck coolant control valve or restricted coolant passage, Faulty ECM (rare). The specific cause varies by vehicle.
How much does it cost to fix P3075?
Repair costs for P3075 range from $600 to $1,500, depending on the vehicle and root cause.
Which vehicles are affected by P3075?
Au7o has documented P3075 across 1 vehicle models from 1 manufacturers: Buick.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.