| 1 | 0 | 3 | 4 | 3 | 4 |
2003 Infiniti QX4 repairs by problem area
Engine (63%)
Transmission and Drivetrain (4%)
Brakes and Traction Control (4%)
Suspension and Steering (15%)
Electrical and Air Conditioning (7%)
Paint, Rust, Leaks, Rattles, and Trim (0%)
Other (7%)
Select a problem area
Chart based on 27 repairs.
2003 Infiniti QX4 engine repair cost distribution
$2500+ (0%)
$1000 - $2499 (13%)
$500 - $999 (20%)
$100 - $499 (33%)
< $100 (33%)
Chart based on 15 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2003 Infiniti QX4 4dr SUV
240-horsepower 3.5L V6 4-speed automatic RWD
| 168000 mi US $50 |
leaking valve cover gaskets |
| 175000 mi US $200 |
fuel pump replacement |
| 168000 mi | Hard to start and rough idle after starting. Combination of idle air control valve and throttle position sensor problems. |
| 178000 mi | Fuel/Air control hard failure. |
| 100000 mi US $487 |
Replaced oxygen sensor |
2003 Infiniti QX4 4dr SUV
240-horsepower 3.5L V6 4-speed automatic 4WD w/low range
| 91140 mi C $89 |
Exhaust |
| 206000 mi US $1000 |
Can't find reason for over heating. Replaced, water pump, radiator, front and rear thermostats,hoses, antifreeze: All twice. The only thing I can think of are the CATS. |
| 206000 mi US $600 |
Love the vehicle, but no one can find why it's overheating, so it sits in my driveway. |
| 74000 mi US $175 |
exhaust pipe leak |
| 55000 mi US $350 |
Reseal front exhaust tubes. |
| 115700 mi | Check engine light is always lit due to pressure problem in the gas tank. |
| 129000 mi US $700 |
leak in evaporator cap |
| 110980 mi C $1400 |
O2 sensor exhaust |
| 70000 mi US $550 |
Replaced cracked header and other exhaust pieces |
| 76000 mi US $200 |
Broken Exhaust bracket and broken heat shields |
| 110500 mi US $1 |
02 bank 2 sensor. known issue. software bug, computer checks sensor too early in start up procedure. sensor actually fine. not willing to pay dealer to fix. |
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