OneTyteEK9

Like the title says. I have a '99 si cluster and the temperater needle just stays on cold. i know the needles not broken because i change cluster. everything is also plugged in. i don't know what i need to replace or not. thanks for the help in advance guys

btleier

have you checked the wiring to the sensor? if there's no physical signs (cut, not connected, etc.).... throw a test light on it.

hmongboyLS

check your engine coolant tempature sensor and see if it's sending signal. Have you checked the inside of your gauges? it could be a possible that it's not working properly.

D16SohcVtec

Could be that your thermostat is stuck open.