Starting getting hot temperature up over 200. turn on heater temperature stays under 200. I am going to flush it. Any suggestions?
Sep 1, 2017 at 5:24 AM
JDL
✓Experienced Mechanic
16,098 POSTS
Some radiator fans will not turn on until over 220 degrees F. Is the radiator fan running? If it gets up over 240 degrees F, I would have to check it out. You can check the basics, thermostat--water pump--circulation through the radiator--coolant temperature sensor. Does the overflow bottle fill up in a hurry?
Sep 1, 2017 at 6:04 AM
STEVE W.
✓Experienced Mechanic
15,370 POSTS
That engine should run at about 210 degrees normally. That is it's design temperature. As JDL says, it's when they get into the 230-240 range you need to worry. Radiator fans normally kick on around the 215-220 mark.