I own a 2000 s10 blazer and my coolant guage doesnt work properly. When I crank it over i notice the needle barely inch forward. Then stops. Never moves again. I have changed the coolant sensor and unst. cluster guage. I alao checked fir continuity at connectorto see if the needle moves. Never did. The fun part of it is that now the gas guage doesnt work after that test. So much fun. Any ideas or rechecks?