Low fan not working

Tiny
ORTEGALEONARD144
  • MEMBER
  • 2004 MITSUBISHI GALANT
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 244,000 MILES
The fan not turning on. I check relay. I check continuity. I replace fan. Still not working. When I switch it to A/C it turns on but the car RPMs go all heywire. And the car wants shut off. Can this be a real problem to the engine?
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Monday, January 25th, 2021 AT 12:21 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

Since we know the fan is good, let's check the fan relay system. Follow these directions. The attached pics correlate with the directions.

2004 Mitsubishi Galant L4-2.4L (4G69)
Radiator Fan Relay Check
Vehicle Engine, Cooling and Exhaust Cooling System Radiator Cooling Fan Radiator Cooling Fan Motor Relay Testing and Inspection Component Tests and General Diagnostics Radiator Fan Relay Check
RADIATOR FAN RELAY CHECK

pic 1

pic 2

pic 3

Let me know what you find.

Joe
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Tuesday, January 26th, 2021 AT 11:55 AM
Tiny
ORTEGALEONARD144
  • MEMBER
The relay has power and continuity, so I replace the relay and and then it started working for a couple days. One more quick question. Is the fan supposed to be on when we have the heater on?
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Monday, February 8th, 2021 AT 12:13 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

The fan shouldn't be on when the heater is on. However, the A/C and fan will turn on with the defroster. The defroster uses the A/C to dehumidify the air. Is that what is happening?

Let me know.

Joe
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Monday, February 8th, 2021 AT 4:20 PM

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