95 Corolla, 262K miles. Had a tune up with coolant change about a year ago.
Temperature gauge has roughly the “C” at 8 o’clock and the “H” at 10 o’clock. Anyway, it USED to go up to about 30%-40% of the way from C to H. Now it seems much lower, like 10%-15%. Even when the car is warmed up…and it’s lower on colder days.
Also the choke stays on much longer in the morning. It won’t go into overdrive for a long time, maybe twice as long as before.
What do you think? Broken thermostat? Stuck? How much does it cost to replace?
Or is it that the coolant change used much harder to warm up coolant? The old coolant was about 5 years old.