Why Can a Car Start but Not Move?
3 Answers
The reasons why a car can start but not move are: 1. The car's anti-theft system is triggered, locking the engine; 2. Faulty ignition switch; 3. Damaged ignition module or damaged ignition reference signal line from the ignition module to the engine computer; 4. Low fuel pump pressure, fuel line leakage, insufficient power supply current, or damaged fuel pressure regulator; 5. Carbon deposits in the engine. Extended content: The solutions are: Check if the car's anti-theft system is triggered, inspect the working condition of the ignition switch, check if the ignition module and signal line are faulty, examine the fuel lines for leaks, clean the engine carbon deposits, and check if the battery has sufficient charge.
My car could start last time but wouldn't move, which really worried me. After inspection, it turned out to be a transmission issue, especially in automatic cars. If the gear is still in P or N, the car gets stuck; for manual transmissions, it might be a clutch failure causing rough shifting. Another common reason is a seized brake system, particularly when brake pads and calipers rust after rain or car washes. That time, I spent some time checking if the tires were jammed by debris or deformed. For safety, don't force it in such situations—first shift back to P, turn off the engine, and restart. If it still doesn't work, call a tow truck to the repair shop immediately. Delays could lead to more damage and higher repair costs.
I remember one time when I went out driving, the engine could start but the car wouldn't move an inch. After troubleshooting, I found it was the electronic system causing trouble: for example, a faulty P-gear sensor or a brake signal not transmitting properly. Also, tire condition is crucial—wheels frozen in snow or stuck in a ditch can also prevent movement. I quickly checked the brake fluid and transmission oil, as low levels can affect power transmission. If the engine starts but the wheels don't turn, it might be an issue with the driveshaft or differential, especially more common in older cars. I recommend regular maintenance of the transmission system to reduce the risk of failure. Timely handling is crucial to avoid safety hazards.
