If you're experiencing issues that *seem* like valve timing problems (poor running, misfires, low power), the issue is almost certainly *not* the valve timing itself but something else:
* Timing Chain/Gears: A stretched or worn timing chain or damaged gears can cause the valves to be out of time. This requires significant engine disassembly and replacement of the chain and/or gears. This is a major job best left to a professional mechanic.
* Camshaft Sensor: A faulty camshaft position sensor can cause the engine computer to misinterpret the valve timing, leading to poor performance. This is a relatively simpler repair, involving replacing the sensor.
* Crankshaft Sensor: Similar to the camshaft sensor, a faulty crankshaft position sensor can impact the engine's timing control and cause similar problems.
* Other Sensors: Numerous other sensors contribute to engine timing and performance. A faulty sensor could lead to symptoms mimicking valve timing issues.
* Ignition System Problems: Issues with the ignition system (spark plugs, wires, distributor cap and rotor - if equipped) can cause misfires that might seem like a timing problem.
In short: If you suspect a valve timing issue on your 1997 Dodge Ram 318, don't attempt to adjust "valve timing" as there's no adjustment to make. Instead, have a qualified mechanic diagnose the problem. Focusing on the sensors and the timing chain/gears is where your troubleshooting efforts should be directed.
