The AC system may blow warm air due to refrigerant loss caused by a leaking low pressure AC hose. These hoses commonly develop a leak at the hose crimp connection.
Nissan Maxima Problem Reports
Most Reported Nissan Maxima Problem Reports
The Check Engine Light may illuminate indicating a primary ignition signal fault. Many times the cause is an ignition coil(s) that has failed. The problem in the coil causes the spark energy to feedback through the wiring harness into the other coils. If this is not repaired, it can damage the other coils (blistering on the coils may be seen).
The external seal on the engine oil cooler can fail and create an oil leak.
If the power steering pump develops leaks, it can drip onto the lower control arm bushing causing the bushing to deteriorate. A knocking noise will be heard when driving over bumps and it may become more difficult to control the vehicle.
Oxygen sensor failures are common due to fluid leaks from the power steering pump. The power steering pump typically leaks directly onto the sensor and causes the wiring to fail. If the leaks are not repaired when the oxygen sensor is replaced, the sensor will fail again.
The idle speed control motor may fail and possibly damage the engine's engine control unit.
The ground inside mass air flow (MAF) sensor can corrode and possibly cause drivability problems. The corrosion is enough to affect the sensor data but not enough to create a trouble code. Diagnosing this can be difficult because it won't always illuminate the Check Engine Light.
The fuel injectors can develop leaks on some models, causing the engine to run poorly or to become less fuel efficient.
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One or more wires in the engine wiring harness may break at the harness bend near the right strut tower. Symptoms include: Check Engine Light illumination, rough idle, drivability problems, and/or an inoperative air conditioner. Any broken wires will need to be repaired.
The engine mount on the right side can wear prematurely and cause excessive engine movement.
The crankshaft position sensor can fail causing the engine to run poorly or it may crank but fail to start.
Failure of the vehicle's speed sensor can cause speedometer and the cruise control to become inoperative. A failed speed sensor will require replacement.