Can the Buick Excelle code4 continue to be driven?
2 Answers
It cannot continue to be driven. The Buick Excelle code4 indicates that the engine temperature is too high. If this occurs, you must immediately find a safe place to pull over. If you are on a highway or ring road, remember to place a warning sign behind your vehicle to alert oncoming traffic and avoid secondary accidents. More details are as follows: 1. Incorrect practice: Many car owners panic and immediately stop and turn off the engine when encountering high engine temperature. This is actually wrong because the water cooling system requires the engine to operate. Once the engine is turned off, the coolant can no longer circulate, and the engine components remain in a high-temperature environment, failing to cool down and potentially damaging engine parts. 2. Correct practice: The engine should be left idling for a few minutes, with the air conditioning set to warm air, and then the hood should be opened to dissipate heat as quickly as possible. After the temperature drops, check if the coolant level is sufficient. If the coolant is below the min line, the high engine temperature is caused by low coolant. If you have coolant on hand, you can add it promptly. If not, mineral water can be used as a temporary substitute. However, note that water is only for emergency use. Long-term use of water as a coolant can cause rust in the engine and radiator, leading to poor heat dissipation and high engine temperature.
I've been driving a Buick Excelle for five years and have encountered the check engine light a few times. Code 4 in the repair manual usually points to a crankshaft position sensor failure, which may cause symptoms like unstable idling or weak acceleration. It's okay to drive short distances to the repair shop, but definitely avoid highways or aggressive driving. Two winters ago, my Excelle had this light come on, and I continued driving for about twenty kilometers - it suddenly stalled midway and nearly caused an accident. I recommend checking the trouble code immediately; there's an 80% chance you'll need to replace the sensor, which costs around 500 yuan at a repair shop. Regularly inspect the engine compartment wiring harness for aging or damage to prevent this issue.
