07 Hemi Ram..engine fan on all the time?
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OP, you have two fans: one is the cooling fan and one is the A/C compressor fan. It will run anytime the compressor is engaged. If you regularly have the air conditioning or the defroster on, that electric fan (off-center toward the driver's side) will run.
The cooling fan will be directly connected to the water pump. If the clutch has failed, you won't be able to turn the cooling fan when the motor is cold. The clutch can also fail the other way: with the engine warmed up and a nice toasty day, you won't be able to stop the spinning fan with a rolled-up newspaper. Do that carefully, or you may need to inventory your fingers.
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The factory fan is a clutch-type, which means the fan only spins when its thermostat tells it to. On a cold engine, the fan free-wheels. As the radiator warms, it heats the air passing through. The 'stat on the fan then tells the clutch to grip the water pump shaft tighter, increasing the load on the engine.
OP, you have two fans: one is the cooling fan and one is the A/C compressor fan. It will run anytime the compressor is engaged. If you regularly have the air conditioning or the defroster on, that electric fan (off-center toward the driver's side) will run.
The cooling fan will be directly connected to the water pump. If the clutch has failed, you won't be able to turn the cooling fan when the motor is cold. The clutch can also fail the other way: with the engine warmed up and a nice toasty day, you won't be able to stop the spinning fan with a rolled-up newspaper. Do that carefully, or you may need to inventory your fingers.
OP, you have two fans: one is the cooling fan and one is the A/C compressor fan. It will run anytime the compressor is engaged. If you regularly have the air conditioning or the defroster on, that electric fan (off-center toward the driver's side) will run.
The cooling fan will be directly connected to the water pump. If the clutch has failed, you won't be able to turn the cooling fan when the motor is cold. The clutch can also fail the other way: with the engine warmed up and a nice toasty day, you won't be able to stop the spinning fan with a rolled-up newspaper. Do that carefully, or you may need to inventory your fingers.
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I believe the 4.7s have it too. I've not looked closely at those, but a friend at work used to have one. The front structure looked much like mine does.
Pretty much all vehicles manufactured in the past 30 years have a mechanical clutch-type fan. Vehicles with transverse-mounted engines all have electric fans, since there's no way to mount a mechanical fan without belts and pulleys.
Pretty much all vehicles manufactured in the past 30 years have a mechanical clutch-type fan. Vehicles with transverse-mounted engines all have electric fans, since there's no way to mount a mechanical fan without belts and pulleys.
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