Heater works when it wants. Doesnt have a pattern, its just random. No coolant leaks. HVAC fuse is good. filter and hoses clog-free. i dont know what else could be wrong.
started smoking really bad when u shift into 3rd gear. will smoke for a few seconds and stop smoking. using oil. does not smoke most of the time but if u sit and idle for a few minutes it will smoke reallllllyyyy bad around 3rd gear.