The MOST-Likely indicator of a slow rise in temperature or a fast rise due to a stuck-closed thermostat is the:
A)fan clutch
B)heater core
C)sending unit
D)exhaust port

Question

Quizplus · Accepted Answer

The sending unit is responsible for reading the temperature of the engine and sending that information to the gauge on the dashboard. If the sending unit is malfunctioning, it could display false readings of either a slow or fast rise in temperature. The other options, such as the fan clutch, heater core, and exhaust port, are not directly related to the engine temperature and are unlikely to be the primary indicators of a thermostat issue.

The MOST-Likely Indicator of a Slow Rise in Temperature or a Fast