2003 Chevrolet Silverado 1500 Chevrolet Silverado 1500 2003

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2003 Chevrolet Silverado 1500 repairs by problem area

Engine (32%)

Transmission and Drivetrain (10%)

Brakes and Traction Control (13%)

Suspension and Steering (16%)

Electrical and Air Conditioning (23%)

Paint, Rust, Leaks, Rattles, and Trim (4%)

Other (2%)

Chart based on 112 repairs.
See TSBs and recalls for the 2003 Chevrolet Silverado 1500.

2003 Chevrolet Silverado 1500 engine repair cost distribution

$2500+ (0%)

$1000 - $2499 (17%)

$500 - $999 (20%)

$100 - $499 (40%)

< $100 (23%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 30 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2003 Chevrolet Silverado 1500

Engine not specified

111000 mi

US $50
EVAP vent solenoid clogged with dust and was throwing a CEL. 
100000 mi

US $1300
Needed fuel regulator and a few minor things. 

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2003 Chevrolet Silverado 1500 4dr Extended Cab 6.5ft bed

300-horsepower 6.0L V8 4-speed automatic RWD

174600 mi

US $1400
replaced brakes, water pump 

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2003 Chevrolet Silverado 1500 4dr Extended Cab 6.5ft bed

300-horsepower 6.0L V8 4-speed automatic 4WD w/low range

136000 mi

US $500
Throttle body replaced because tps went bad. Check engine light came on and power drastically reduced until engine was turned off. Happened twice in one week. 
153700 mi

US $600
Air conditioner pump idlers pulley bearings went out. 
160500 mi

US $300
Fuel lines had rusted out and needed replaced. 
220000 mi

US $50
Fuel tank strap broke. Replaced with new one. 
225000 mi

US $200
Oil cooler line corroded and had a hole, leaking oil. Replaced lines. 

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2003 Chevrolet Silverado 1500 4dr Extended Cab 6.5ft bed

285-horsepower 5.3L V8 4-speed automatic RWD

153000 mi

US $320
Fuel injectors failing resulting in poor fuel mileage and excessive fuel consumption. Truck had hard time starting as injectors were in the "open" position at key start dumping to much fuel into the motor. 
159000 mi

US $408
Back pressure tests by 2 local shops indicated possible catalytic converter issues. Repeated trouble codes for failing O2 sensors. Replaced both catalytic converters & 4 O2 sensors. Problem resolved truck running normal again 
163000 mi

US $88
O2 sensor bank 2 post cat failed again. Using Denso parts, some reason keeps failing. 
166500 mi

US $1000
Check engine lite on fuel system, fuel vapor sensor. 
184900 mi

US $2270
The stock & original heads were leaking coolant down into the exhaust. This caused the truck to loose power & throw O2 sensor codes from the passenger pre and post cat. Replaced all gaskets, plugs wires, knock sensors and wiring. New set of complete aluminum heads installed. 

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2003 Chevrolet Silverado 1500 4dr Extended Cab 6.5ft bed

285-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range

113000 mi

US $12
Mass airflow sensor cleaning due to CEL code P0101 

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2003 Chevrolet Silverado 1500 4dr Extended Cab 6.5ft bed

285-horsepower 5.3L V8 4-speed automatic 4WD w/low range

178300 mi

US $600
Replaced both Catalytic converters.  Fuel Evaporation solenoid. Rotate Tires. 
197000 mi

US $250
Coolant was leaking aggressively from inside of the engine bay onto the pavement. Water pump seal was completely gone. Water pump was replaced. 
193000 mi

US $530
Truck went into limp mode "reduced engine power" and codes led to a throttle body position sensor/actuator error. Entire throttle body replaced. 
149000 mi

US $10
Pulley bearings began to whine. three of them total ,hard to tell which one. Removed all three and regreased. Stopped the whine for now. 
152000 mi

US $60
Oil pressure sender unit. $35 part. Oil pressure gauge was pegged at 80. 
128000 mi

US $850
Fuel pump was going out, causing hesitation to start & loss of fuel pressure after sitting for more than one hour. Check engine light on- "EVAP Large Leak". 

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2003 Chevrolet Silverado 1500 4dr Extended Cab 6.5ft bed

275-horsepower 4.8L V8 4-speed automatic RWD

154100 mi

US $2000
exhaust system Battery, alternator. Four o2 sensors, pcv valve, map sensor, belts all tension pulleys an idle, spark plugs, water pump, intake manifold gasket. 

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2003 Chevrolet Silverado 1500 4dr Extended Cab 6.5ft bed

275-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range

132000 mi

US $200
Cats and O2 Sensors. 

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2003 Chevrolet Silverado 1500 4dr Extended Cab 6.5ft bed

275-horsepower 4.8L V8 4-speed automatic 4WD w/low range

181000 mi

US $36
Rusted fuel lines; replaced with new, one piece GM lines. I'd compare the level of frustration with this installation to that of ball joints -- it was rough. In hindsight, I'd go with the aftermarket split lines if I ever have to do it again. Water pump leaking at rear seal. Replaced o-ring. Also replaced thermostat, tank cap, and A/C belt (cracked/split; appeared original). It was taking too long -- IMO -- for the cab to heat up, so the thermostat may have been failing. 

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2003 Chevrolet Silverado 1500 4dr Crew Cab 6.5ft bed

300-horsepower 6.0L V8 4-speed automatic 4WD w/low range

102000 mi

US $200
CEL indicated an issue with the MAF sensor. Cleaning the sensor with MAF sensor cleaner resolved the problem. Replaced knock sensors, knock sensor connectors and wiring harness and intake manifold gasket due to water and corrosion in rear knock sensor. replaced knock sensors and knock sensor wiring harness 
106200 mi

US $120
Replaced MAF sensor 
115000 mi

US $350
Replaced sensor, flush system 

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2003 Chevrolet Silverado 1500 2dr Regular Cab 8ft bed

275-horsepower 4.8L V8 4-speed automatic 4WD w/low range

139000 mi

US $130
Fuel pump failure 
67000 mi

US $250
Had a small leak behind water pump...water pump was good , not leaking....but was leaking behind pump where meets to block. Replaced with NEW pump not rebuilt pump. Price of new pump was $150 ( friends discount ) and $100 labor to put on....$260 total PA. tax included !!!!! 

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2003 Chevrolet Silverado 1500 2dr Regular Cab 6.5ft bed

200-horsepower 4.3L V6 4-speed automatic RWD

164000 mi

US $936
The truck was leaking coolant. The repair replaced the intake manifold gaskets. 
164200 mi

US $319
An oil leak required the replacement of the oil pan gasket. 

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2003 Chevrolet Silverado 1500 Engine Problems

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 2003 Chevrolet Silverado 1500 problems occur, check out our car reliability stats.