Nissan Murano Not Starting Clicking Sound

So, you're having trouble with your Nissan Murano? You turn the key, and instead of the engine roaring to life, you hear that dreaded clicking sound? You're not alone. This is a fairly common issue, and while it can be frustrating, it's often something you can diagnose and potentially even fix yourself. Let's break down what's happening and how to get your Murano back on the road.

Understanding the Clicking Sound

The clicking sound you're hearing is likely coming from the starter solenoid. This is a small cylindrical device mounted on the starter motor. Its job is to engage the starter motor with the engine's flywheel or flexplate. When you turn the key, the solenoid receives an electrical signal, which should then allow it to push the starter gear into contact with the engine and power the starter motor. A clicking sound indicates the solenoid is trying to do its job but failing, usually due to insufficient power.

Possible Causes: A Checklist

Let's run through some common culprits. We'll start with the simplest and most frequent and work our way up.

1. Dead or Weak Battery: This is by far the most common cause. The battery might not have enough juice to power the starter motor, even though it might have enough to power the lights and radio.
2. Corroded Battery Terminals: Corrosion on the battery terminals creates resistance, preventing sufficient current from reaching the starter.
3. Loose Battery Cables: Similar to corrosion, loose connections hinder the flow of electricity.
4. Faulty Starter Motor: The starter motor itself could be failing. This could be due to worn brushes, a short circuit, or internal damage.
5. Bad Starter Solenoid: The solenoid, as mentioned above, could be the problem. It might be damaged or worn out, preventing it from engaging the starter motor properly.
6. Faulty Ignition Switch: The ignition switch is what sends the signal to the solenoid. If it's faulty, it might not be sending enough voltage or any voltage at all.
7. Wiring Issues: Damaged or corroded wiring between the battery, ignition switch, solenoid, and starter motor can interrupt the electrical flow.
8. Grounding Issues: The starter motor needs a good ground connection to the vehicle's chassis to function correctly. A poor ground can cause starting problems.
9. Engine Issues (Less Likely): In rare cases, a seized engine or excessive engine drag can prevent the starter from turning the engine over. However, this is usually accompanied by other symptoms and a different sound than just clicking.

Troubleshooting Steps: Getting to the Root of the Problem

Here's a step-by-step approach to diagnosing the problem. Safety first! Disconnect the negative battery cable before working on any electrical components.

1. Check the Battery Voltage: Use a multimeter to check the battery voltage. It should read at least 12.6 volts when the engine is off. If it's significantly lower (e.g., 12.0 volts or less), the battery is likely weak or dead. A fully charged battery is crucial for proper starting.

Tools Needed: Multimeter

2. Inspect and Clean Battery Terminals: Look for corrosion (a white or greenish buildup) on the battery terminals and cable clamps. Clean them with a wire brush or a battery terminal cleaner. Make sure the connections are tight.

Tools Needed: Wire brush, battery terminal cleaner, wrench (usually 10mm)

3. Check Battery Cable Connections: Ensure the battery cables are securely connected to the terminals and the chassis ground. Tighten any loose connections. Follow the cables to the starter and engine block, and check the connections there as well.

Tools Needed: Wrench (various sizes)

4. Listen for the Clicking: Have someone turn the key to the start position while you listen closely to the starter motor. Is the clicking coming directly from the starter? This helps pinpoint the problem area.
5. Try Jump Starting: If you suspect a weak battery, try jump starting the Murano from another vehicle. If it starts with a jump, the battery is definitely the issue. Consider having your battery tested at an auto parts store; most offer free battery testing.

Tools Needed: Jumper cables

6. Tap the Starter Motor: If you're comfortable reaching the starter motor (it's usually located near the engine block), have someone try to start the car while you gently tap the starter motor with a hammer or wrench. Do not hit it hard! Sometimes, this can dislodge a stuck brush inside the starter and allow it to temporarily work. If it starts after tapping, it indicates a failing starter motor. This is a temporary fix; the starter will need to be replaced.

Tools Needed: Hammer or wrench (small)

7. Check the Fuses and Relays: Consult your owner's manual to locate the fuses and relays related to the starting system. Check them for any signs of damage or a blown fuse. Replace any blown fuses with the correct amperage rating.

Tools Needed: Fuse puller, owner's manual

8. Voltage Drop Test (More Advanced): A voltage drop test can help identify issues with wiring and connections. This test requires a multimeter and some electrical knowledge. You can find instructions online or consult a mechanic.
9. Check the Starter Relay: Locate the starter relay (refer to your owner's manual or a wiring diagram) and try swapping it with an identical relay from another system (like the horn relay, if it's the same type). If the car starts with the swapped relay, the original relay is faulty.

Possible Solutions and Estimated Costs

Once you've identified the cause, you can take action to fix it.

• Replace the Battery: If the battery is weak or dead, replacing it is the most straightforward solution. Battery replacement costs can range from $150 to $350, depending on the battery type and where you purchase it.
• Clean or Replace Battery Terminals: Cleaning the terminals is free if you have the supplies. Replacing damaged terminals is relatively inexpensive, costing around $10 to $30.
• Tighten or Replace Battery Cables: Tightening loose cables is free. Replacing damaged cables can cost $20 to $50.
• Replace the Starter Motor: If the starter motor is faulty, it needs to be replaced. Starter motor replacement costs can range from $300 to $700, including parts and labor. The cost can vary depending on the Murano model year and the mechanic's hourly rate.
• Replace the Starter Solenoid (If Possible): Some starter motors have a separate, replaceable solenoid. However, it's often more cost-effective to replace the entire starter assembly. The solenoid alone might cost $50-$150, but labor to replace it can be significant if it requires removing the starter anyway.
• Repair or Replace Wiring: Repairing damaged wiring can be tricky and is best left to a qualified mechanic. The cost will depend on the extent of the damage and the mechanic's hourly rate. Expect to pay anywhere from $50 to $300+.
• Replace the Ignition Switch: If the ignition switch is faulty, it needs to be replaced. Ignition switch replacement costs can range from $150 to $400, including parts and labor.
• Address Grounding Issues: Cleaning and securing ground connections is relatively inexpensive. The cost to repair a damaged ground wire will depend on the extent of the damage.

When to Call a Professional

While many of these issues can be addressed DIY, there are times when it's best to seek professional help. If you're not comfortable working on electrical systems, or if you've tried the troubleshooting steps and are still unable to pinpoint the problem, it's time to consult a qualified mechanic. A mechanic has the tools and expertise to diagnose the issue accurately and perform the necessary repairs safely and effectively.

Important Note: Always consult your Nissan Murano's repair manual for specific instructions and torque specifications. This article provides general guidance but shouldn't replace professional advice or manufacturer recommendations.

Good luck getting your Murano running again! With a little troubleshooting and some elbow grease, you can often resolve this frustrating issue and get back on the road.