* Reduced Power/Performance: The engine may feel sluggish, hesitant, or lack its usual power, especially under acceleration. Detonation disrupts the smooth combustion process, resulting in less efficient power delivery.
* Rough Idle: The engine might idle unevenly or shake more than usual.
* Overheating: Knock can lead to increased engine temperatures, as the uncontrolled explosions generate excess heat. Watch your temperature gauge closely.
* Decreased Fuel Economy: Inefficient combustion from detonation will lead to lower miles per gallon.
* Exhaust Smell: The exhaust might have a different smell or seem more acrid than normal, potentially indicating incomplete combustion.
* Pre-ignition Damage: Over time, persistent knock can cause damage to internal engine components such as pistons, connecting rods, bearings, and even the cylinder head. This might manifest as other symptoms like unusual engine noises (not just the knock), increased oil consumption, or even engine failure. This is obviously the most serious consequence.
It's crucial to understand that some of these symptoms can also be caused by other issues. However, if you suspect engine knock, immediately reduce engine load and RPM. Continuing to drive with detonation will almost certainly cause further damage. Get your Trans Am to a mechanic specializing in older muscle cars as soon as possible for diagnosis and repair. They can diagnose the cause (e.g., low-octane fuel, faulty ignition timing, worn engine components) and implement the correct fix.
