1999 Ford Explorer Q&A

1999 Ford Explorer Question: Tachometer works intermittently, what could cause this?

Answer 1
Faulty tach , faulty wiring/connection or faulty sensor. Testing , may help isolate source of problem. -
Comment 1
Thanks. Just bought it and noticed tach fluctuating and then quitting on the way home. Was thinking a loose ground possibly, but will check what you said. -
Comment 2
Thanks. Just bought it and noticed tach fluctuating and then quitting on the way home. Was thinking a loose ground possibly, but will check what you said. -
Comment 3
It could be any number of things as I said , but , yes any grounds or harness connections in the circuit could be suspect with the symptoms you describe. IF it's in a connector , simply unplugging and plugging back in may take care of it(this includes where the gauge cluster plugs in). If it totally quit working , the best way to determine the cause , may be to have a scanner hooked up to monitor sensor input. -