Hey guys my tach isnt working on my truck and I was wondering if there was a part that goes out that causes this problem or what?

 

Check all your wiring connections?

 

check the harness in the engine compartment for rubbing. Mine wore through the insulation and was grounding the tach wire. After replacing the tach itself I found the trouble spot. I threw some tape on it and it works again. good luck

 

There is green connector with a black cap on it near the igniter. Remove the cap from the plug and connect a test tach to the plug. Start you engine to see if the test tach gets a reading. If you have no reading it is the ignitor unit that is the problem. If you get a reading it is a problem in the wiring harness or the Tach unit. Run a wire from the test plug connection directly to the Tach unit input terminal on the instrument panel. If the Tach works you have a grounded or broken wire. If the Tach does not work you have a bad Tach unit. Fine a replacment Tach or a speedometer shop that knows how to fix Toyota Tach units.