What are the reasons why the Tiggo 5 has power but won't start?
2 Answers
Tiggo 5 has power but won't start for the following reasons: 1. Check if the battery voltage is too low: You can turn on the headlights and some electrical devices to observe whether there are noticeable changes in the brightness of the dashboard and interior lighting during the starting process. If they dim, it indicates that the battery voltage is still insufficient. 2. Excessive carbon buildup in the intake manifold: Too much carbon buildup on the throttle body, idle speed motor, etc., prevents the engine's air-fuel mixture from reaching the required ratio, causing the vehicle to fail to start. The repeated engagement of the magnetic pack and starter relay produces a clicking sound. 3. Insufficient fuel supply from the fuel system: This phenomenon is essentially similar to excessive carbon buildup in the intake manifold, also preventing the engine from achieving the required air-fuel mixture ratio, resulting in the vehicle's inability to start.
My Tiggo 5 had the same issue before - the battery showed full charge but nothing happened when turning the key, really frustrating. I remember it happened last winter when the temperature dropped, the problem would occur more easily. After inspection, we found the ignition coil had aged and the spark plugs had too much carbon buildup to ignite properly. First, listen carefully to the sounds: if there's only a single click or no sound at all when turning the key, it might be a relay or starter motor failure; if there's sound but the engine doesn't turn over, then it's likely a fuel system problem, like a clogged fuel pump or a fuel filter needing replacement. Also, are there any warning lights on the dashboard? False activation of the anti-theft system is also common, especially when the key battery is running low. My advice is to maintain these components regularly - don't wait until they fail completely. Spending small money now can save big trouble later. If all else fails, find a reliable repair shop for diagnosis - safety first.
