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2005 Chevrolet Cobalt Engine Problems

52 TrueDelta members own (or used to own) a 2005 Chevrolet Cobalt. 9 of these members (17.3%) have reported engine repairs for their car. A total of 15 engine repairs to 2005 Chevrolet Cobalts--an average of 0.3 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 2005 Chevrolet Cobalt problems occur, check out our car reliability stats.

Chart based on 55 repairs.

2005 Chevrolet Cobalt engine repair cost distribution

Chart based on 11 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 2005 Chevrolet Cobalt repair histories. Log in or join us to see them all.

2005 Chevrolet Cobalt 4dr Sedan

145-horsepower 2.2L I4 5-speed manual FWD

41000 mi US $15 Engine light diagnosed as fuel system problem/lean. Added 64 oz. mineral spirits to full tank of gas. Presently waiting for light to go out(mineral spirits are same as injector cleaner). 
45000   Engine Light went out in April with no further repairs. 
83000   Engine light on. code said O2 sensor. replaced and light stays off. 

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2005 Chevrolet Cobalt 4dr Sedan

145-horsepower 2.2L I4 4-speed automatic FWD

105400 mi C $280 Ignition coil went bad Also replaced fuel filter and plugs at the same time. 
47000 US $120 Throttle Body Actuator set check engine light off. Got code, then ordered part and fixed myself for 120. 
55180 C $408 DRIVE BELT CRACKED. REMOVED AND REPLACED DRIVE BELT, VERIFIED THAT DRIVE BELT IS SEATED ON ALL PULLEYS CORRECTLY. 
68000 US $500 serpentine belt needed replacing 
59000 US $85 Check engine light was on they said it was due to the knock sensor needing to be reprogrammed and the "evap vent solenoid" needed to be replaced. I have not noticed any change in mileage or performance so I decided to not pay the $300+ they quoted me ... 

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2005 Chevrolet Cobalt 2dr Coupe

supercharged 205hp 2.0L I4 5-speed manual FWD

91000 mi US $252 IAT/MAP Sensor plastic was cracked, sensor and vehicle operated normally, replaced sensor anyways. 
116000   Intercooler pump has stopped working. Replacement pump ordered, yet to be installed. 
140000   intercooler pump failed 

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2005 Chevrolet Cobalt 2dr Coupe

145-horsepower 2.2L I4 5-speed manual FWD

103000 mi US $247 Car wouldnt start one morning. Took off the coils and removed the boots and saw that cylinders 2 and 3 werent firing. Replaced the coil packs and the ignition control module and its been riding smooth since. 
207000   Rocker disintegrated, shoved intake valve open, crashed into piston, rod fell apart, bent oil pickup in oil pan. Replaced rocker and entire bottom end. 
211000   Spun a rod in the rebuilt motor after 4k miles. car is down and wont be repaired again, not worth putting any more money into. gonna sell it to pick n pull 

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2005 Chevrolet Cobalt 2dr Coupe

145-horsepower 2.2L I4 4-speed automatic FWD

19000 mi   Key got stuck in ignition and would not come out. Replaced shifter. 

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