Obvious Signs (requires visual inspection):
* Obvious Noise: If you've heard a loud metallic "clanging" or "rattling" sound coming from the engine *before* it stopped running, that's a very strong indicator of a broken timing chain. This is because the timing chain is no longer maintaining proper valve timing.
* Visual Inspection (Difficult): Accessing the timing chain on a 1995 Camaro requires significant disassembly, likely involving removing the valve cover and potentially other components. If you're comfortable with engine work, carefully inspect the chain for breaks, stretched links, or any obvious damage. This is not a task for a novice.
Less Obvious, But Potentially Indicative Signs:
* Engine Won't Start: A broken timing chain will almost certainly prevent the engine from starting. The pistons and valves will be out of sync, preventing combustion.
* Recent Loud Engine Noises: If you've heard unusual, loud noises from the engine recently (even if it was running), especially a metallic clatter or grinding, it's suspicious.
* Pre-existing Problems: If the engine has been experiencing timing-related issues (hard starting, misfires, loss of power) before it stopped completely, a broken chain is a possible culprit. Note that these symptoms alone aren't definitive proof.
What *NOT* to do:
* Don't try to crank the engine: Cranking the engine with a broken timing chain risks significant, costly internal engine damage (bent valves, damaged pistons, etc.). This damage could total the engine.
Diagnosis:
If you suspect a broken timing chain, you'll likely need a mechanic to diagnose it properly. They'll perform a thorough inspection, likely including:
* Visual inspection of the timing chain (requires engine disassembly).
* Compression test: A low or uneven compression reading across the cylinders suggests a timing chain issue.
* Leak-down test: This test will measure the amount of air escaping past the valves, which can indicate valve damage caused by a broken timing chain.
In short, a broken timing chain is a serious issue. If you suspect it, get professional help immediately. Attempting to troubleshoot or repair this yourself without experience is strongly discouraged due to the potential for severe engine damage.
