Why does my 2017 Mazda CX-5 KF have issues starting after sitting for a while?

If your 2017 Mazda CX-5 KF is having issues starting after sitting for a while, there could be several potential causes. Below are detailed steps to diagnose and address the problem.

Potential Parts/Components to Replace

• Battery: If it fails the voltage test or shows signs of age.
• Fuel Pump: If it does not deliver adequate pressure.
• Fuel Filter: If clogged or restricted.
• Ignition Coils/Spark Plugs: If they show signs of wear or damage.
• Starter Motor: If it is not functioning properly.

Estimated Time for Repair

• Battery Replacement: 30 minutes.
• Fuel Pump Replacement: 2-3 hours (depending on accessibility).
• Ignition System Inspection/Replacement: 1-2 hours.
• Parasitic Draw Diagnosis: 1 hour.

Safety Warnings

• Always wear safety glasses and gloves when working on vehicles.
• Ensure the vehicle is on a flat surface and securely supported if working underneath.
• Disconnect the battery before working on electrical components to prevent short circuits.
• Be cautious of fuel spills when working on the fuel system; have rags and a fire extinguisher nearby.

By following these steps, you should be able to diagnose and resolve the starting issues with your Mazda CX-5 KF. If the problem persists after these checks, consider consulting a professional technician for further diagnosis.