solocrxcivic

i just bought a 89 civic si and im having problems with the temp guage and gas guage. when i start the car up the temp guage shoots staight up to H and my gas guage does what ever it wants to it doesn't just up and down it just reads empty when i just filled it up and vice versa can any help me ? i dont know if a wire is crossed or a wire or wires aren't hooked up any help would greatly appreciated
thanx in advance for the help

Fobby

possible problems on the temp gauge
1.bad thermostat
2.air in cooling system
3.very low on coolant

solocrxcivic

how do i check for coolant in the system? i changed the thrmostat two months ago. what about the gas guage is there a sensor where they both hook up besides the back of the guage cluster
thanx

BigCheese

There isn't a sensor but you could always pop off the cluster and make sure that the plug is in good. When I switched out my cluster my guages were acting weird because the plug was not plugged in securely.