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Chevrolet Impala Engine Problems

583 TrueDelta members own (or used to own) a 2000 or newer Chevrolet Impala. 104 of these members (17.8%) have reported engine repairs for their car. A total of 191 engine repairs to Chevrolet Impalas--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 Chevrolet Impala problems occur, check out our car reliability stats.

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Chart based on 564 repairs.

Chevrolet Impala engine repair cost distribution

Chart based on 179 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 Chevrolet Impala repair histories. Log in or join us to see them all.

2006 Chevrolet Impala 4dr Sedan

242-horsepower 3.9L V6 4-speed automatic FWD

17730 mi   Emission canister vent solenoid-Replaced under Warranty 
28100 C $1130 Water pump and coolant crossover gaskets developed bad leak aand were replaced with all cost paid by owner.  
35000   Head gasket was leaking not allowing hot air to blow and defrost the windshield. 
65700 US $30 Cooling line fitting. 
70000   Water pump replaced. Serpintine belt replaced. 
77000   Thermostat replaced 
38000 US $900 Check engine light on (then off, then back on) plus sporadic warnings to tighten gas-cap - which was tight! Needed new sensor(s) . 

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2006 Chevrolet Impala 4dr Sedan

211-horsepower 3.5L V6 4-speed automatic FWD

34000 mi   Car experienced massive coolant loss. Noticed coolant covering engine and underside of hood. Saw Dex-cool running down the back of the fan/radiator. Dealer pressure tested cooling system and replaced water pump under warranty. Seems OK after repair. 

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2006 Chevrolet Impala / Monte Carlo

Engine not specified

82000 mi US $500 Vehicle DIC (Driver Info Center) displayed "Engine Hot / A/C Off" and temp gauge dropped to zero. With no temp gauge, it was decided it was best to have it towed. Dealer replaced: Temp sensor Returned 2 week later for reflash of computer.  

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2004 Chevrolet Impala 4dr Sedan

200-horsepower 3.8L V6 4-speed automatic FWD

94000 mi   Bad fuel injector. 

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2004 Chevrolet Impala 4dr Sedan

180-horsepower 3.4L V6 4-speed automatic FWD

76000 mi US $450 Problem with Dexcool gelling, went in for flush noticed that water pump had evidence of leaking. R&R water pump and thermostat while having complete system flush to get rid of gelled dexcool. Check engine light, code leaky fuel vapor system. Diagnosed as possibly due to aftermarket locking gas cap.  

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2004 Chevrolet Impala / Monte Carlo

Engine not specified

4000 mi US $50 unreliable as to when car starts properly, fixed with new ignition chip 

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2002 Chevrolet Impala 4dr Sedan

180-horsepower 3.4L V6 4-speed automatic FWD

78000 mi US $550 Replaced for second time ignition switch - security system does not allow car to start because of defect in ignition system 
89700   Check engine light on - replaced thermostat. 
93000 C $800 replace faulty gasket 
137640   replace resonator 
146320   engine light came on did an OBD2 meter check for code and found out it was emissions spoke with a mechanic to find out it was catalytic converter 
146320   engine light came on, reading now says missing cylinder 1 replaced coil packs with used from wrecker. Engine light came back on and now says misfire on cylinder 5. Have not yet fixed  
147520   replaced coil pack plugs and wires 
161200   would not start told it was ignition then BCM. 

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