Reasons Why an Automatic Car Doesn't Move in D Gear Without Accelerating
1 Answers
Here are the reasons why the car doesn't move in D gear and only moves when accelerating: 1. Throttle opening too small: It may be due to insufficient throttle opening of the engine or inadequate fuel injection from the injectors. 2. Transmission signal issues: It could be related to problems with the transmission control system or actuator signals, causing the shift valve to be unresponsive and failing to engage properly, thus preventing the oil passage from opening. 3. Principle: Normally, most automatic cars (especially older models without AUTOHOLD function) will slowly move forward at idle speed after starting the engine, pressing the brake, shifting to D gear, and releasing the brake (similar to manual transmission in 1st gear), but at a very low speed. The car will only accelerate when the throttle is pressed further.