How do you test a Volvo cooling fan relay?

How do you test a Volvo cooling fan relay?

How to test this … it’s simple. Allow a few minutes after you shut off the engine. While your volvo fan is still running, disconnect the connector that has the yellow and yellow/white wires from the relay. If the volvo fan still stays running, then you know for sure the relay is defective.

Where is the cooling fan relay located?

The fan relay is usually located near the bottom of the engine compartment on a metal frame member. The metal acts as a heat sink to keep the fan relay cool.

How do I know if my condenser fan relay is bad?

Signs your condenser fan relay needs to be replaced include:

1. The engine is overheating.
2. The air conditioner is not working on a regular basis.
3. The air conditioner does not work at all.
4. No cool air is being blown out when you turn the air conditioning on.
5. You hear a rattling noise when you shake the condenser fan relay.

How do I know if my cooling fan switch is bad?

The best way to tell if your cooling switch is faulty is to listen to your engine while you drive. You know how your engine is supposed to sound, and if you notice that you don’t hear the fan as often as you normally do during your afternoon commute, you might have a failing switch.

How much does a cooling fan relay cost?

Radiator Fan Relay Replacement Cost – RepairPal Estimate. Labor costs are estimated between $27 and $35 while parts are priced at $32. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.

Why my radiator fan is not working?

The most common reasons a radiator fan is not working are luckily due to a blown fuse, bad relay, or a broken wire. It can also be caused by a faulty coolant temp sensor, low coolant level or the fan itself can be damaged.

Is there a fuse for radiator fan?

A radiator fan is necessary to keep your car cool. The fuses inside of the radiator fan must be in good working order to make sure that the engine is able to stay cool. Without these components your car overheats.

How do you test a fan relay?

How to Check a Fan Relay

1. Look at the markings on top or side of the relay case and locate the two control circuit terminals, which connect to the relay’s coil, and the two power circuit terminals, which let electrical current pass to the fan.
2. Connect the leads of an ohmmeter to the power terminals on the relay.

What is the relay number on a Volvo fan?

If you don’t grab the harness, you’ll have a hard time hooking up the fan relay. The 2-speed Volvo fans came with relay part # 1398845. Some relays also have part # 3523872 (1992-1997 Volvo 850). These relays were replaced by P/N 9442933 .

How does the fan on a Volvo work?

Put a switch in the vehicle that is fed from a 12 volt switched source, so that it will only have power with the ignition on. When you flip the switch, it activates the relay and feeds power from the battery to the Volvo fan relay. This switch would remain ‘ON’ at all times so that the fan will turn on and off as needed by the engine.

What kind of fan does a Volvo 940 use?

The 2-speed Volvo fan and relays have become a popular swap. The fan you need is from a 1990’s Volvo 740, 850 or 950 sedan or wagon. The 940 fan is the easiest to remove. It is held in with (2) bolts at the top, and clips at the bottom. Unlike the Ford Taurus fan, the Volvo fan can be removed from the shroud.

Can a Volvo fan be removed from the Shroud?

The 940 fan is the easiest to remove. It is held in with (2) bolts at the top, and clips at the bottom. Unlike the Ford Taurus fan, the Volvo fan can be removed from the shroud. When you get the fan, you’ll need the relays and wiring that come with it. If you don’t grab the harness, you’ll have a hard time hooking up the fan relay.