- Socket set
- Wrench set
- Screw driver set
- Protective eyewear and gloves
Begin with the car on level ground, engine "OFF" in park with emergency brake "ON".
Step 1 - With ignition key "OFF" spin the radiator fan blade by hand, it should freewheel or have little resistance. Next, make sure the fan blade is not contacting the fan shroud, if so re-position the fan motor to allow more clearance and recheck operation. Step 2 - Lug nuts are used to fasten the tire to the axle. If these lug nuts become loose they can make a clicking noise while the car is being driven. To check for this condition use a lug wrench equipped with the correct size and re-tighten as needed. (Note: If lug nuts have been loose for an extended amount of time, damage to the rim or wheel stud can occur. Its recommended that the lug nuts are tightened to a specific manufacturer torque specification.
Exhaust Manifold Step 15 - A common problem with a car battery is low voltage. As a battery ages it loses the ability to store electricity resulting in an insufficient flow of electrical energy to the starter. The starter is designed to operate on a high amperage 12 volt system. When a starter is subjected to low voltage or amperage (flow) it will cause the starter to engage and disengage rapidly producing the machine gun like sound. Visit - Rapid ticking noise when engine is cranked Visit - Battery testing Step 16 - The ignition system ignites the fuel inside the engine's combustion chamber at the optimal time in the piston stroke to produce the most power. If the ignition system is failing it can cause an electrical charge to jump from the system to ground producing a clicking noise. Also a loose spark plug can cause a click noise while the engine is running. Locate the spark plug in question and tighten as needed. Visit - Ignition system testing
Helpful Information When a clicking noise is detected first locate the area of the car it is being generated from. If the noise is being generated while driving have a helper ride along in the rear seat to give a new perspective on the origin of the noise. A clicking noise can be generated by many things, from low engine oil to loose lug nuts. Once a clicking sound has been detected action must be prompt to avoid further damage. There are some systems that make a clicking noise that is natural, for example: fuel injectors, relays, emergency flashers, turn signals and the air conditioner when first turned it on.