Can a Car Go Backwards in Drive? Answering the Common Question

This question relates to the operation of an automobile gearbox and transmission. In general, most modern cars with automatic transmissions cannot go backwards in “Drive” mode. This is because the transmission uses a planetary gearset that is designed to spin one way and the reverse function is engaged via a separate gear. However, cars with…

Solving Error Code P0315 – Crankshaft Position System Variation Not Learned

The P0315 code indicates that the Crankshaft Position System Variation Not Learned has been detected by the Engine Control Module (ECM). This code is set when the ECM does not learn the variation between the crankshaft position sensor and camshaft position sensor. The ECM stores a learned value to compare against one another to determine…

What Causes Engine Squeaking at Idle? – Get to the Bottom of That Annoying Noise

Engine squeaking at idle is a common problem that occurs when the engine is running. It is usually caused by worn engine parts or a lack of lubrication. The squeaking sound is often accompanied by vibrations or other noises. It can be a sign of an underlying problem which should be addressed as soon as…