Post by
drmerdp »
https://forums.nicoclub.com/drmerdp-u32498.html
Thu Sep 20, 2007 6:51 am
A bad t-stat wouldn't cause your heat to suck. The coolant that flows through the heater core come staight from the engine. (hot) You said that it "isn't hot at all", i'll assume its hotter the the outside air temp.
You should flush your heater core. For the most part coolant isn't changed yearly like it should, and crap builds up over time.
Use your imagination and connect a garden hose to either side of the heater core and flush it out. It be most effective to attach the hose to the exit on the core BAck Flushing... GL