you have been noticing a change that has resulted in rough idling, you need to visit a mechanic. The chances are that the purge valve has been failing and requires your attention. Do not overlook the issue as it could lead to halting of the engine altogether as vacuum leaks are too likel...
However, the performance deteriorates when the air starts leaking. Detecting an air leak is not as easy as finding an oil spillage. But you can still do it. Kick off the engine and let the vehicle idle for a while. Spray carburetor cleaner on the joining seal of the intake manifold and...
Gone are the days of adjusting your timing belt or setting your own fuel-to-air ratio. Those functions are controlled by three computers:Engine control module (ECM) [also referred to as Engine Control Unit (ECU)] Powertrain control module (PCM) Transmission control module (TCM)....