P0230 on Chevrolet: How to Diagnose & Fix
Fuel Pump Primary Circuit Malfunction
12 Chevrolet models · 13 documented issues · 7 critical · $250-$1,000 repair
P0230 on Chevrolet by model: symptoms, diagnosis and fix
The fuel pump module can fail, causing hard starting, stalling, or no-start conditions. GM issued a recall for certain vehicles due to fuel pump issues. The fuel tank assembly design may contribute to pump failures.
Common Symptoms
- Engine stalls while driving
- Long crank time
- No start condition
- Loss of power
- Check engine light
How to Fix
Check if vehicle is covered by GM recall. Replace fuel pump module. Some owners install upgraded pump assembly. Monitor for fuel pressure issues with scan tool.
Sources for this issue (1)
The fuel pump module fails to consistently provide adequate fuel flow to the engine, causing potential stalling while driving. This creates a significant safety hazard as the engine can stall unexpectedly in traffic. GM issued recall N222372310 affecting 23,164 vehicles.
Common Symptoms
- Engine stalling while driving
- Hesitation during acceleration
- Hard starting or extended cranking
- Reduced engine power
- Check engine light
How to Fix
Fuel pump module replacement under recall N222372310. Contact dealer for recall service. Check VIN at my.gm.com/recalls for eligibility.
Find a Chevrolet dealer
Choose to share your location for this search, or enter an area below. Your search location is sent to Google to find dealers.
Open Chevrolet dealer map in Google Maps ↗Call to confirm they service Chevrolet vehicles and check your VIN, recall eligibility, parts availability, and appointment options.
Sources for this issue (1)
In-tank fuel pump fails causing stalling, hard starts, and no-start conditions. Often fails without warning on high-mileage vans.
Common Symptoms
- Engine stalls while driving
- Long cranking before start
- Loss of power under load
- Whining noise from fuel tank area
- No start condition
How to Fix
Replace fuel pump module assembly. Drop the fuel tank to access. Replace fuel filter at same time.
Sources for this issue (1)
The 1994-2004 S-10 in-tank fuel pump is prone to premature failure. Running the tank below 1/4 accelerates pump death because fuel cools and lubricates the pump. The integrated fuel level sender also fails, causing erratic gauge readings. Hot restart problems are a classic early warning sign as heat exacerbates pump weakness.
Common Symptoms
- Engine cranks but will not start
- Engine sputtering or surging at highway speeds
- Loss of power under load or climbing hills
- Difficulty restarting when engine is hot
- Erratic fuel gauge readings
- Whining noise from rear of vehicle
How to Fix
Confirm the failure by checking fuel pressure at the rail with a gauge; the 4.3L CPI/CSFI systems are very sensitive to low pressure, and a weak pump will often show hard hot restarts, low pressure under load, or a no-start with little or no prime. Inspect the fuel pump electrical connector and ground at the frame, then replace the in-tank pump module with a quality complete assembly that includes the strainer and fuel level sender rather than installing the pump motor alone; on these trucks it is common to drop the tank, though lifting the bed is often faster and reduces rusted strap bolt issues. Replace the fuel filter at the same time and inspect the harness pigtail for heat damage, then verify pressure and gauge operation after repair. Typical repair cost is about $450-$900 parts and labor depending on whether a full module, sender, and connector are needed.
Sources for this issue (1)
The in-tank electric fuel pump on the GMT400 Tahoe is a common wear-out item, often failing around/after 100,000 miles. Continuous-duty operation, chronic low-fuel driving (which reduces pump cooling), and tank sediment clogging the sock filter all shorten pump life. A frequently overlooked contributor is the fuel pump wiring harness pigtail/ground connection ahead of the rear axle, which corrodes and melts, causing intermittent power loss to the pump. Skipping the recommended 30,000-mile fuel filter interval accelerates pump failure.
Common Symptoms
- Hard start, especially when cold
- Long crank before firing
- Whining noise from fuel tank
- Hesitation / power loss under acceleration
- Stalling
- Intermittent no-start
How to Fix
Replace the in-tank fuel pump module. Replace the fuel filter and the harness pigtail connector at the same time, and verify/repair the rear ground. Maintain the fuel filter on a 30,000-mile interval and avoid habitually running the tank near empty.
Sources for this issue (1)
The GMT800 Tahoe's in-tank electric fuel pump module is a common high-mileage failure. As the pump wears it struggles to build and hold the ~58-62 PSI these returnless systems need, producing extended cranking (worst after the truck sits overnight), stalling, hesitation under load, and eventually a crank-but-no-start with no pump 'prime' hum at key-on. Tank contamination/rust and heat accelerate the failure.
Common Symptoms
- Extended cranking before start, worse after sitting
- Crank but no-start with no pump hum at key-on
- Stalling and hesitation under load
- Low/erratic fuel pressure
- Surging at highway speed
How to Fix
Confirm with a fuel-pressure gauge on the Schrader port: good pressure should reach ~58-62 PSI within ~2 seconds of key-on and hold. Also check the fuel-pump relay/fuse and inspect the pump connector for heat damage. Fix is a complete fuel pump module (pump + level sender + strainer). OEM: ACDelco MU1613 (GM 19153711), which includes the seal, float and harness; quality aftermarket options include Delphi/Spectra modules (part roughly $150-350). Drop the tank, replace the module and strainer, and blow out/inspect the tank if rust is present.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Fuel Pump Module AssemblyCross-ref67307
Fitment confirmed against the ShowMeTheParts catalog for this vehicle's year and engine.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (1)
P0230 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 P0230 mean on a Chevrolet?
P0230 stands for "Fuel Pump Primary Circuit Malfunction." P0230 means the engine computer detected a fault in the fuel pump primary circuit — the control side that switches the fuel pump (or its relay) on and off. The PCM energizes this circuit to run the electric fuel pump that delivers fuel to the engine; if it sees voltage that is too high, too low, or out of expected range, it sets this code. Because the pump may not run correctly, the engine can crank without starting, stall, lose power, or hesitate. This is a circuit/control fault rather than a direct measurement of fuel pressure. On Chevrolet it is documented across 12 models: Silverado 1500, Equinox, Express, S-10, Tahoe, Cavalier, Cobalt, C/K 1500, C/K 2500, Silverado, Blazer, Camaro.
What are the most common causes of P0230?
The most common causes of P0230 are: Faulty fuel pump relay, Damaged wiring or connectors in the fuel pump control circuit, Corroded or loose ground/power connection, Failed fuel pump or fuel pump driver module, Blown fuse or fusible link, Open or short in the primary control wiring, Faulty PCM driver output (rare). The specific cause varies by vehicle.
How much does it cost to fix P0230 on a Chevrolet?
Published repair estimates on Chevrolet range from $250 to $1,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0230 on a different make?
View P0230 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.