1. The Basics – Check the Obvious:
* Battery: Test the battery voltage with a multimeter. It should read around 12.6V when not charging. If low, charge it or replace it. Check the battery terminals for corrosion and clean them if necessary. Check all battery cables for tightness and corrosion.
* Alternator: With the engine running, check the battery voltage again. It should read around 13.5-14.5V. If it's low, your alternator might be failing.
* Starter: If the engine cranks slowly or not at all, the starter motor itself could be faulty or have a bad connection. Listen closely to see if you hear any clicking sounds (common starter issue).
2. Fuel System:
* Fuel Pump: Listen for the fuel pump to prime when you turn the key to the "on" position (but don't crank the engine). You might hear a whirring sound. If you don't, the pump might be bad or its relay is faulty.
* Fuel Filter: A clogged fuel filter will restrict fuel flow. It's relatively inexpensive and easy to replace.
* Fuel Injectors: This is more complex and requires specialized tools or a mechanic. A fuel pressure test is necessary to diagnose injector problems.
3. Ignition System:
* Distributor (if applicable): Older Camaros might use a distributor. Check the cap, rotor, and ignition wires for wear, cracks, or damage.
* Ignition Coil: A faulty coil won't send spark to the plugs. This is relatively easy to test with a spark tester.
* Spark Plugs & Wires: Worn or fouled spark plugs and damaged wires will prevent proper combustion. Inspect them and replace as needed.
* Crankshaft Position Sensor (CKP): This sensor tells the computer the engine's rotational position. A faulty sensor can prevent the engine from starting or running.
* Ignition Switch: A bad ignition switch might not be sending power to the ignition system.
4. Computer System (ECM/PCM):
* Computer Problems: The Engine Control Module (ECM) or Powertrain Control Module (PCM) can fail. This usually requires professional diagnosis with specialized tools. Check for any diagnostic trouble codes (DTCs). Many auto parts stores can read codes for free.
5. Other Possibilities:
* Fuses and Relays: Check all fuses and relays related to the fuel system, ignition, and starting system. A blown fuse or failed relay is a common and easy-to-fix cause of no power.
* Security System: Some Camaros have anti-theft systems that can prevent the engine from starting if they're malfunctioning.
* Neutral Safety Switch (Automatic Transmission): This switch prevents starting unless the transmission is in park or neutral. If it's faulty, it might prevent the car from starting.
How to Proceed:
1. Start with the simplest checks (battery, terminals, fuses).
2. Listen for sounds. Any unusual noises (clicking, whirring, grinding) can help pinpoint the problem.
3. Use a multimeter. This is essential for testing battery voltage, alternator output, and other electrical components.
4. Check for diagnostic trouble codes (DTCs).
5. If you're not comfortable working on your car, take it to a mechanic. Misdiagnosis can lead to further damage.
Remember safety first! Disconnect the negative battery terminal before working on any electrical components. If you're not experienced with car repair, it's best to seek professional help. Providing more detail on the symptoms (e.g., does it crank? Does it make any noises? Does the fuel pump prime?) will help in getting more specific advice.
