Can You Still Drive When 4WD Overheating Temporarily Fails?
2 Answers
4wd overheating car should not be driven, and the fault should be eliminated as soon as possible to solve the problem. Here is the relevant information: 1. 4WD overheating temporarily fails: When the car displays "4WD overheating temporarily fails," it means that the electronic coupler of the four-wheel drive transmission has overheated and triggered an alarm, which is why this prompt appears on the car's dashboard. Generally, the car's computer is used to control and cut off the power supply to the electronic coupler. 2. Four-wheel drive system: The four-wheel drive system (4WD system) changes the engine's driving force from the two-wheel drive of the 2WD system to four-wheel drive. The reason why the 4WD system is classified as an active safety system is mainly because the 4WD system has better engine driving force application efficiency than the 2WD system, achieving more effective tire traction and steering force.
As an experienced driver, I've encountered the four-wheel drive overheating warning a few times while having fun in the mud. The system automatically switches to two-wheel drive mode to keep the vehicle moving, but don't push it too hard. Driving slowly on flat ground to a safe area is fine, but it can be dangerous on steep slopes or icy roads. I usually stop the engine immediately, pop the hood, and let it cool for half an hour. The key is to identify the cause: it might be poor heat dissipation due to overdue transfer case oil changes, or the transfer case fan being clogged with mud. Last time, I solved it by cleaning the cooling fins. Remember, frequent overheating can burn out the torque manager, and replacing it could cost as much as a used motorcycle. For safety's sake, get it checked right after you're out of trouble.
