Date registered: Jan 2016
Vehicle: 1998 ml320
Location: Sacramento California 95608
Mentioned: 0 Post(s)
Quoted: 103 Post(s)
Auxiliary Fan Emergency!!! Picture of blown fuse
Ac was working perfect today. A few hours into driving off and on i noticed the air was getting hot, so i lifted the hood up and noticed the ac compressor wasn't running, and i checked the low port pressure and it read 200 psi. I was stupid and released some refrigerant, & in front of a cop, also i noticed the coolant tank was bubbling. Without an instrument cluster i had no way to tell the temp. After i got home i let the truck cool off; i checked the fuses and noticed the ac fan fuse was blown . I replaced it; turned the car on the compressor is back on, but the fan is still not running. My question is does the fan come on when the AC is on, or only when the engine warms up? I was told the AC will work for a while without the fan, until the pressure builds up to high then the compressor shuts of for safety of course, that's why my AC was working even after the fans failed. Now i may need to hook the fan directly to the battery to see if the fan is still good, also called the DC test. Then i may need to check the Coolant temp sensor, but i am still looking at every wire and sensor.