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Orlando 1 (2010-2018) Trailblazer 1 (2001-2008, petrol) Lumina 1 (1989-1994)
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  • Checking the engine cooling fan motor

Checking the engine cooling fan motor (Chevrolet Lumina 1)

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Attention! The cooling fan is switched on by a temperature sensor and can be switched on at any time, regardless of whether the engine is running or not. Keep your hands, tools and clothing away from the fan.


Note: After performing any electrical tests on the blower motor circuit, ensure that the service motor light ("Service Engine Soon"), does not light. If it lights up, erase all stored error and malfunction codes by following the procedure described in chapter 6, Section 2.


1. To check the fan motor, disconnect the electrical connector on the motor and use the auxiliary wires with a fuse to connect the fan directly to the battery (see illustration). If the fan does not work, replace the electric motor (see below paragraph "Replacing the fan motor" in this section).

4.1 The fan motor can be tested by connecting the wires from the battery directly to the terminals…

4.1 The fan motor can be tested by connecting the wires from the battery directly to the terminals of the motor


2. If the electric motor runs, the fault may be in the coolant temperature sensor, the relay, the ECM or PCM, or the wiring connecting these units. Check all wires and connectors carefully.

3. If the fan blade is bent or damaged, it should be replaced with a new one. Do not attempt to repair or reuse a damaged fan blade as this will adversely affect the fan's balance.

[The source of the article is available on the website «CHEVYMAN»]

The article was checked: Vladimir Romannikov
This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

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Previous articles
Lumina 1: Cooling system
Next articles

Checking and replacing the thermostat
Coolant — General Information
General information about the cooling system
Technical data of the engine cooling system
Troubleshooting the Cooling Fan Control Circuit
Replacing the engine cooling fan
Replacing the engine cooling fan motor
Removal and installation the radiator
Removal and installation the coolant reservoir


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Orlando 1 (2010-2018) 
  • General information
  • Introduction to manual
  • User manual
  • Maintenance
  • Troubleshooting
  • Power unit
  • Engine repair
  • Fuel and control system
  • Cooling and lubrication system
  • Ignition system
  • Transmission
  • Clutch
  • Gearbox
  • Drive shafts
  • Chassis
  • Car suspension
  • Steering
  • Brake system
  • Body
  • Exterior (external elements)
  • Doors, locks and windows
  • Electrical equipment
  • Equipment and devices
  • Windscreen wipers
  • Power devices
  • Electrical diagrams

 

Trailblazer 1 (2001-2008) 
  • General information
  • User manual
  • Troubleshooting
  • Maintenance
  • Power unit
  • Engine in a car
  • Engine overhaul
  • Cooling and heating
  • Fuel and exhaust system
  • Engine electrical equipment
  • Engine control
  • Transmission
  • Automatic gearbox
  • Transfer case
  • Drive shafts and cardan
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Exterior (external elements)
  • Interior (internal elements)
  • Doors, locks and windows
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits

 

Lumina 1 (1989-1994) 
  • General information
  • Maintenance
  • Power unit
  • Engine 3.1L V6
  • Engine 3.8L V6
  • Engine overhaul
  • Cooling system
  • Power and exhaust system
  • Fuel injection
  • Engine electrical equipment
  • Reduced exhaust gas toxicity
  • Transmission
  • Automatic gearbox
  • Drive shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Heating and air conditioning
  • Repair of body elements
  • Doors, covers and windows
  • Interior (internal elements)
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits

 

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