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2006 Subaru Legacy Engine Problems

78 TrueDelta members own (or used to own) a 2006 Subaru Legacy. 21 of these members (26.9%) have reported engine repairs for their car. A total of 45 engine repairs to 2006 Subaru Legacys--an average of 0.6 per vehicle--have been reported.

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2006 Subaru Legacy problems occur, check out our car reliability stats.

Chart based on 138 repairs.

2006 Subaru Legacy engine repair cost distribution

Chart based on 36 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten 2006 Subaru Legacy repair histories. Log in or join us to see them all.

2006 Subaru Legacy 4dr Wagon

turbocharged 250hp 2.5L H4 5-speed shiftable automatic AWD

11160 mi   Rough idle and check engine light, replaced idle valve. 
28520 C $500 ignition coil replaced 
40300   engine check engine on. engine not running smoothly on 4 cylinders. VVT valve that takes care of cylinder 1 and 3 had to be replaced. 
62000   OCV Oil control valve 
55000 US $1400 Car overheated. Towed to shop. Replaced thermostat, leaking hose, water pump, timing belt + tensioners. 
69000   Check Engine Light - scan and retrieve codes 
69000   Radiator inlet hose popped off. Radiator inlet flange was damaged. Replaced radiator and inlet (top) hose. 
69000   Check engine light came on 3 times in one week. Each time, the car went into 'limp' mode. Would not rev above 1200 rpm. Dealer read code P0638. Dealer was not able to diagnose further and did not attempt to repair. 
70000   Got P0638 check engine light. Car went into limp mode. Dealer (Irvine Subaru) replaced ECM. When I went to pick up the car, I got P0638 again. Dealer replaced the throttle body (including sensor and actuator). 

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2006 Subaru Legacy 4dr Sedan

turbocharged 250hp 2.5L H4 5-speed shiftable automatic AWD

85000 mi US $1800 A stumble at idle processed to a check engine light, codes for failure of #4. A coil pack, an injector or a tight valve. After lengthy diagnosis (for which not charged), found to be a tight valve. All four lifters were replaced. 
121000   R&R Intake manifold 
130000   Replace Radiator 
142000   fix oil leak to turbocharger 

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2006 Subaru Legacy 4dr Sedan

turbocharged 250hp 2.5L H4 5-speed manual AWD

68000 mi US $100 brief malfunction causing check engine light to go off, no problem 
115300   Check engine light, low oil pressure, oil change, brakes resurfaced 
19220 C $180 Primary O2 failure. 
48000   Faulty ECU - part ordered Replace ECU 

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2006 Subaru Legacy 4dr Sedan

175-horsepower 2.5L H4 5-speed manual AWD

55000 mi   Right side head gasket failure 
60000 US $140 front o2 sensor failed 
65000   Replaced the front o2 sensor 

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2006 Subaru Legacy 4dr Sedan

175-horsepower 2.5L H4 4-speed shiftable automatic AWD

77000 mi US $2800 Engine gasket failed. Coolant leaking into engine. 

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