Toyota 4Runner Electrical Guides

Recommended Articles

• 

  How to Replace Battery

  Did your car suddenly stop cranking?

• 

  How to Replace Spark Plugs and Wires

  Change your spark plugs early – your engine will thank you.

• 

  How to Jump Start Battery

  Never get stranded again by following these simple steps for jump starting your battery.

• 

  How to Replace Oxygen (O2) Sensor

  Has your 4Runner been losing fuel efficiency? It probably has a bad O2 sensor.

• 

  Electrical Diagnostic Guide

  Don't let the electrical gremlins win. Read this and learn how to diagnose electrical problems.

• 

  How to Replace Starter

  Having problems starting your truck? Here is how to fix it.

• 

  How to Replace Alternator

  Make sure your battery gets charged as it should.

• 

  How to Replace Distributor

  Experiencing a rough idle, or a shaking and sputtering engine? Do something about it now.