P2636

Fuel Pump B Low Flow/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Reduced engine power
Dips during acceleration
Unstable operation at high speeds
Difficulty starting the engine
Check Engine Light Is On

Causes

Fuel pump B malfunction
Problems with pump wiring or connectors
Clogged fuel filter
Pump Circuit Low Voltage
Fuel pump relay malfunction

How to Fix

Check the voltage and continuity of the fuel pump B circuit
Check the resistance of the pump windings
Replace the fuel filter if necessary
Check the pressure in the fuel system
If necessary, replace fuel pump B

Related codes

P2635 P2637 P2638