Why are both radiator fans running at the same time?
In prepping for a 2K trip next week, there couple of quibbles I need to address. Both cooling fans run constantly. The AC is off. Engine cold, start up, and they both run continuously. Key off, and they both stop.
Can a 3 wire radiator fan run when unplugged?
Use the one for the older cars. Your car is old enough to use a F129, four wire double switch, not the 3 wire G65. It should not run when unplugged. You can safely short (jumper pin to pin on the connector) a 4 wire switch for testing.
Is it normal for a car cooling fan to run constantly?
Both cooling fans run constantly. The AC is off. Engine cold, start up, and they both run continuously. Key off, and they both stop. Not sure about the different speeds, but I venture to say it is high speed. I suspect this is not normal. However, the AC does work good!
How to straight wire a cooling fan to an engine?
The best way to test it is to bypass the fan’s normal circuit and straight wire the fan to the engine. Locate the positive and negative wires on the cooling fan. Cut both wires and strip 1/2 an inch of insulation off of the ends of the two fan wires. Connect one end of the 12-gauge jumper wire to the black ground wire of the fan.
In prepping for a 2K trip next week, there couple of quibbles I need to address. Both cooling fans run constantly. The AC is off. Engine cold, start up, and they both run continuously. Key off, and they both stop.
How often does a car cooling fan stay on?
Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
What are the signs of a bad cooling fan?
Common signs include the engine running hot and cooling fans either not functioning or running all the time. 1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
Why are my cooling fans running at all times?
3. Cooling fans stay on at all times. If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
Use the one for the older cars. Your car is old enough to use a F129, four wire double switch, not the 3 wire G65. It should not run when unplugged. You can safely short (jumper pin to pin on the connector) a 4 wire switch for testing.
Why does my Audi A3 fan run all the time?
That 4-pin refrigerant pressure switch was a common failure on the A3 cars, and its failure mode would cause the fan to run constantly. Never seen it manifest itself in the same manner on an early A4 car, though, but that doesn’t mean it couldn’t happen.