gauges

[frankyjoet]

hi, have a few ?,s about testing gauges mech. and electric in my 73 gmc truck. Q1-Have changed from the old style oil gauge to electric not after market. i have also a heavy duty oil pump. Do i need a different oil gauge to allow for the heavy oil pump? when engine running , gauge shows past 60. Q2- temp gauge mechanical doesn,t move. tried 2 others same results. chked sending unit connection - tight. the gauges when tested are in the gauge bezel and secure. i also pretested gauges with a resistance volt meter. any suggestions would be appreciated. thanks in advance frankyt