I have an 92 vigor that dosnt want to seem to hold heat. Every acura ive owned seems to have the temp gauge in the same spot when the car is hot. This vigors engine temp dosnt seem to wanna climb to proper temp. Ive watched the needle move around and it sits on the low end more often thatn not and the heater temp seems low. Im thinking it is the thermostat not closing properly but wanted some other opinions. Thanks

 

Slow temp climb and inability to hold temp would lead me to expect the t-stat.