Diagnosing Infiniti Qx4 Fan Blade Problems
The Infiniti QX4 generates a lot of heat from its V6 engine. Without a proper cooling system, there is nothing to prevent the engine from overheating. That said, any component in the vehicle's cooling system must be in good working condition-that includes the fan blade. Below is a list of problems and troubleshooting tips related to Infiniti Qx4 fan blade and the parts connected to it:
Noise as the fan blade spins
You may have a proper working fan blade, but if there's an unusual noise that can be traced to the fan blade, then you have a problem. Once you notice this, pull over on the side of the road and check visually what's wrong. The problem might be as simple as a rock that get trapped and is hitting something as the blade spins. Do not panic. Stop the engine and fix the problem. Do not insert your hand to get the foreign object out of the fan belt. Remember, the engine is hot. Let the engine cool down or use something that will protect your hand from the heat of the engine. If there's no trapped foreign object, check if you lose a bearing or anything that's missing. Repair as necessary.
Loose fan belt
This is one of the most common problems related to fan belts; and it is not hard to miss. When your fan belt is loose, the fan blade will not work correctly, you'll notice that your vehicle loses power, your vehicle is stuck at 30 or 40 mph even if you step onto the accelerator, and the lights and the radio begin to dim or not function. A loose fan belt can also cause the engine to overheat even if the coolant level is sufficient. Remove the fan belt and inspect for any sign of breaks, cracks, wear, or damage. A new fan belt is required if you see irreparable damage.
Cracked fan blade
Driving with a cracked fan blade may be okay, but it is not advised. Since it is spinning fast, you'll never know when it will fall apart. So if you know that your fan blade is compromised, then you have to replace it right away. Doing so will prevent more damage to your car and avoid high repair bills. Signs that you have a cracked or damaged fan blade include unusual noise, vibration, and shaking under the hood.