Most Common Car Issues
Selected parameters
Model
Scion iQ
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MOST COMMON PROBLEMS
TOYOTA Scion iQ 2012
The 2012 Toyota Scion iQ is a compact hatchback equipped with a 1.3L inline-4 engine, producing 94 hp. It features comprehensive safety with airbags in all rows, including front, knee, side, and curtain airbags. Manufactured in Toyota City, Japan, this 3-door, 4x2 drive car is designed for efficient urban commuting.
Spec:
Engine Brake (hp) From
94
Engine Configuration
In-Line
Engine Model
1NR-FE
Engine Number of Cylinders
4
Problems:
Oil consumption issues
The 1NR-FE engine, particularly in earlier years, is known to consume more oil than expected, which could lead to low oil levels and potential engine damage if not monitored regularly.
Excessive engine noise
Owners have reported that this engine can produce more noise than other engines in its class, which could be due to piston slap or other internal component issues.
Timing chain problems
The timing chain might wear out prematurely, leading to a rattling noise and potentially causing serious engine damage if it fails completely.
Poor fuel economy
Some users have experienced worse-than-expected fuel economy, which could be due to various factors including engine tuning issues or problems with the fuel injection system.
Throttle body issues
Problems with the throttle body can lead to erratic idling or poor acceleration, which may require cleaning or replacement of the throttle body unit.
Cooling system failures
Issues with the cooling system, such as radiator leaks or thermostat failures, can lead to engine overheating if not addressed promptly.
Ignition coil failures
Over time, ignition coils may fail and cause misfires, leading to rough engine operation and potentially damaging the catalytic converter if left unresolved.
Egr valve problems
The Exhaust Gas Recirculation (EGR) valve can become clogged or fail, leading to poor engine performance and increased emissions.
Sensor failures
Various engine sensors, such as the oxygen sensor or mass air flow sensor, may fail, leading to incorrect air-fuel mixture and poor engine performance.