Vw Volkswagen Jetta 1999 Cooling Fans Not Coming On Youtube Cooling fans were not coming on, customer had replaced the cooling fan control module the day before but missed a issue with the wiring. If the fan runs, the thermo switch is faulty and needs to be replaced. if the fan fails to operate, check for voltage at the thermo switch connector (red wire). if voltage is not reaching the connector, check fuse #1. if the thermo switch is good and the fuse is good, the thermostat (in the water pump housing) may be faulty.
How To Replace Radiator Fan Assembly 1999 2005 Volkswagen Jetta Youtub I just got my first car. a 1999.5 jetta gl. the fans are not working. i notice the car was heating up yesterday and i only have week with my car….what a bummer : ( i took it to a local mechanic and he said i would only need to replace the fan coolant tempter switch (fan switch) so i went to autozone and replace it…and nothing. Depending on the model of volkswagen you own, there may be many factors that can contribute to cooling fan problems. some common causes include: damaged radiator. broken belt or pulley system. faulty fan control module. incorrectly installed fan assembly. issues with the cooling system hoses. damaged fan blades. Issue with the coolant temperature sensor. obstructed fan blades. if the fan is running all the time: faulty coolant temperature sensor. stuck fan relay. issue with the fan control module or wiring. if the fan is rattling or making too much noise: worn radiator fan motor or motor bearings. debris in the fan blades. The ecu will start the fans when it sees the temperature is too high, but i do not know the exact setpoint. the radiator thermo switch will start the fans when the temperature of the coolant about half way up the radiator is: bentley fan operating points: low speed on 197 206 f (92 97 c) off 183 195 f (84 91 c) fast speed on 210 221 f (99.
Cooling Fans Jetta Cooling Fans Not Working Issue with the coolant temperature sensor. obstructed fan blades. if the fan is running all the time: faulty coolant temperature sensor. stuck fan relay. issue with the fan control module or wiring. if the fan is rattling or making too much noise: worn radiator fan motor or motor bearings. debris in the fan blades. The ecu will start the fans when it sees the temperature is too high, but i do not know the exact setpoint. the radiator thermo switch will start the fans when the temperature of the coolant about half way up the radiator is: bentley fan operating points: low speed on 197 206 f (92 97 c) off 183 195 f (84 91 c) fast speed on 210 221 f (99. The temp was 194 and steady. no cooling fans. lower radiator hose cool to the touch. i revved the engine up to 2000 rpm for a couple on minutes. temp rose to 200. lower radiator hose finally hot, indicating that the thermostat opened. still no fan running. i turned on the a c with fan speed at 1. both fans kicked on and cooled the coolant down. This includes 98 10 beetle, 99 06golf, and 99 05 gti gli jetta bora. the fuse as shown in the picture normally does not fail but the fuse box under it does. it melts and this particular part sends power to the cooling fan thermal switch and the fan control module. the fan module also sends power to the a c compressor.
Volkswagen Jetta Mk4 Radiator Fan Replacement Jetta Mk4 2 0l 1998 The temp was 194 and steady. no cooling fans. lower radiator hose cool to the touch. i revved the engine up to 2000 rpm for a couple on minutes. temp rose to 200. lower radiator hose finally hot, indicating that the thermostat opened. still no fan running. i turned on the a c with fan speed at 1. both fans kicked on and cooled the coolant down. This includes 98 10 beetle, 99 06golf, and 99 05 gti gli jetta bora. the fuse as shown in the picture normally does not fail but the fuse box under it does. it melts and this particular part sends power to the cooling fan thermal switch and the fan control module. the fan module also sends power to the a c compressor.
Cooling Fans Jetta Cooling Fans Not Working
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