Repair cost
$0–$900
DIY difficulty
3 / 5
Severity
Major
Costly to ignore — plan a fix within weeks
Affected
2017-2020
In-tank fuel pump, Fuel pump assembly
What goes wrong
Pump impeller cracks, causing no-start or stalling.
Symptoms to watch for
- Long cranking
- Stalls at idle
- P0087 fuel pressure low
Root cause
Defective Denso pump impeller (NHTSA recall 20V-687).
In-article ad
Buy time with these
- • Check VIN for open recall (free at dealer)
Permanent fix
- Pump assembly replacement under recall 20V-687.
FAQ
What causes impreza low-pressure fuel pump failure?
Defective Denso pump impeller (NHTSA recall 20V-687).
How much does it cost to fix?
National average $0–$900.
Is this a DIY repair?
Difficulty 3/5. Pump assembly replacement under recall 20V-687.
What are the symptoms?
Long cranking; Stalls at idle; P0087 fuel pressure low
Sources
- • NHTSA
- • Subaru Owner Forums