Is It Normal for Only One Fan to Spin on the Baojun 730?
4 Answers
This is a normal phenomenon. Only when the air conditioning is turned on in summer and the engine coolant temperature is very high will both fans spin together. Relevant information about the Baojun 730 is as follows: 1. Dimensions: The Baojun 730 is a 5-door, 7-seat MPV under SAIC-GM-Wuling. Its length, width, and height are 4780mm, 1780mm, and 1740mm respectively, with a wheelbase of 2750mm. 2. Powertrain: The Baojun 730 CVT version is equipped with a 1.5T turbocharged engine paired with a simulated 8-speed CVT continuously variable transmission. The engine's rated power is 111kW, and the maximum net torque is 250N·m.
My Baojun 730 has been used for several years, and fan issues are quite common. Under normal circumstances, it might be an energy-saving design feature that only one cooling fan operates, such as during low-speed driving or when the coolant temperature isn't high, with only one fan running for heat dissipation. However, if the temperature gauge rises or the other fan still doesn't spin after turning on the AC, this could indicate a problem, often stemming from a faulty fan motor, relay failure, or a short circuit in the wiring. I personally encountered this issue, which turned out to be due to oxidized relay contacts causing poor connectivity—replacing the relay solved the problem. I recommend you immediately monitor the coolant temperature; if the needle rises too high, pull over promptly to prevent engine overheating damage. Don’t delay—visit a 4S shop as soon as possible for a professional diagnostic tool to check error codes and the electrical circuit, ensuring driving safety. During routine maintenance, remind the technician to pay attention to the fan system to avoid future troubles.
Driving the Baojun 730 feels quite smooth, but I think the fan issue depends on specific scenarios. When the weather is cool, it might be normal for only one fan to operate since partial cooling suffices. However, if the other fan doesn't kick in when climbing slopes or using the AC, there could be a fault—like a sensor failure or control module error. Once after washing my car, I noticed abnormal fan behavior; it turned out to be a short circuit from dampened wiring. I suggest testing it while parked: start the engine, let it warm up, and observe the fan operation—but avoid DIY repairs to prevent damage. If anything seems off, get a professional inspection immediately. Incomplete fan operation reduces cooling efficiency, increases fuel consumption, and in severe cases, could lead to engine failure—definitely not worth the risk.
For the Baojun 730, if only one cooling fan is running, its normalcy depends on the coolant temperature. If the temperature is low, the system may activate just one fan, but the other should engage when temperatures rise—otherwise, there’s an issue. Common causes include a faulty fan motor or relay failure. I’m concerned this could heighten the risk of overheating and engine seizure. Advise monitoring dashboard warning lights while driving; pull over immediately if abnormalities appear. Prompt repairs can prevent costly engine overhauls and downtime.
