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Relay

Cooling Fan Relay - What Does It Do - Failure Symptoms - Testing
Automotive Relays

Cooling Fan Relay – What Does It Do – Failure Symptoms – Testing

11/11/2022

The cooling fan relay essentially functions as, the on/off switch for the engine’s cooling fans. And, is therefore an important electrical component, of the vehicle’s cooling system. Most cooling fans use electric motors, that have […]

Electric Cooling Fan - What Can Stop It From Working Properly
Cooling Heating

Electric Cooling Fan – What Can Stop It From Working Properly

10/07/2022

Is your engine is overheating, or shows signs of running hotter than normal. Then, you may have a problem, with your electric cooling fan. Electric cooling fans are used, to move air through the radiator, […]

Fuel Pump Related No Start Problems - What Should You Check
Automotive Fuel Pump

Fuel Pump Related No Start Problems – What Should You Check

08/14/2022

The fuel pump runs continuously while your engine is running, delivering high-pressure fuel, to the fuel rail and injectors. The fuel pump keeps cool, by staying submerged in fuel or else it would overheat. If […]

Automatic Shutdown (ASD) Relay - Function - Failure - Testing
Automotive Relays

Automatic Shutdown (ASD) Relay – Function – Failure – Testing

08/11/2022

The function of the automatic shutdown (ASD) relay, is to shut off power to major systems. When the key is turned off, as a safety feature. So, when the automatic shutdown (ASD) relay is on; […]

Fuel Pump Relay - Function, Failure and testing procedures.
Automotive Relays

Fuel Pump Relay – Function, Failure and testing procedures.

03/19/2022

So, the fuel pump relay, is activated whenever, the ignition is turned on. Consequently, the primary function of the fuel pump relay, is to maintain a consistent voltage supply, to the fuel pump. Therefore, when switched […]

Engine Cooling Fan - Is your cooling fan working - How to test it.
Cooling Heating

Engine Cooling Fan – Is your cooling fan working – How to test it.

01/12/2022

Your engine cooling fan, only runs when needed, to help cool the engine. So, a engine cooling fan, relay or control circuit failure is bad news. Because, it can allow the engine to overheat. The […]

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Engine Testing Help

  • Crankshaft Position Sensors - Function, Failure, Diagnosis, Testing
  • Compression Test - How to do it, wet or dry - What do the results tell you.
  • Automatic Shutdown (ASD) Relay - Function - Failure - Testing
  • Noid Light - Learn how to test fuel injectors, using a noid light.
  • Idle Air Control Valve (IAC) - Function - Failure Symptoms - Testing
  • Using A Vacuum Gauge, To Test The Condition Of Your Engine
  • Crankshaft - Camshaft Position Sensor - Testing The Easy Way
  • (O2) Oxygen Sensors - Function, Failure Symptoms, How To Test
  • Engine Compression - What Can Cause, Low Or No Engine Compression
  • Using A Vacuum Gauge, To Test The Condition Of Your Engine
  • Fuel Pump Relay - Function, Failure and testing procedures.
  • Vacuum Leaks - How To Quickly Find Vacuum Leaks ( Not The Safest )
  • Running ( Dynamic ) Compression Test - Evaluating individual cylinders.
  • Engine Power Balance Testing - Total Power Output Of The Engine
  • Crankshaft Position Sensor - Common Failure Symptoms - Testing
  • Engine Coolant Antifreeze - Engine Cooling And Testing Made Easy
  • How To Do A Cylinder Leak Down Test - With Or Without A Tester
  • Cooling Fan Relay - What Does It Do - Failure Symptoms - Testing
  • Compression Leak Between Cylinders - No Coolant Or Oil Leaks
  • Automotive Engine Valves - Function - Failure - And, how to test them.
  • Engine Cooling Fan - Is your cooling fan working - How to test it.
  • Engine Fuel System - Proper Testing Procedures With Solutions
  • Cylinder Power Balance Testing - Can Help Uncover Hidden Engine Issues
  • (O2) Oxygen Sensor - Basic function - Failure symptoms - With testing.
  • Catalytic Converter - Knowing The Basics - Failure Signs And Testing
  • Wet Compression Test - Next Level, Mechanical Engine Testing
  • Cylinder Leak Down Test - What Are The Results Telling You
  • Bubble Test - Used In Conjunction With A Cylinder Leak Down Test
  • Vacuum Leak Detection - The Safe Way to Find Vacuum Leaks
  • Alternator Or Battery Failure - Failure Symptoms With Testing
  • Crankshaft Position Sensor - (CKP) - Testing And Replacement
  • Valves And Piston Rings Function - Failure Warning Signs - Testing
  • Throttle Position Sensor (TPS) - Function - Failure - Testing
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