Ok first off I did use the search button and although there were threads on engines not heating up none matched my problem specifically.
My car: 1989 Nissan 240sx with a 1992 KA24DE engine. Mostly Stock
A month ago I decided to do a complete AC Delete since the last guy had already removed the compressor. I gutted the AC box behind the dash, removed the condenser, evaporator etc. To remove the condenser I had to pull the radiator so at that point I flushed the fluid, bled everything and pulled off an electric fan that the previous owner had installed just to simplify things for now.
As soon as I started the car up and drove it I noticed it was taking forever to heat up. If I let it sit in the garage(its pretty cold outside) it warms up to operating temp after 15 minutes however as soon as I begin driving the temp plummets. I know what you're thinking; this guy has a thermostat that is stuck open. Seems reasonable but the timing of the problem seems too weird. Why would the thermostat stop working as soon as I flushed the coolant? I personally think it has something to do with my unplugging the aftermarket fan.
Any help or suggestions are welcome
*one important bit if info is that my lower radiator hose has clearly been modifies and looks like this :
https://www.google.com/search?q=s13...fan-controller-optional-t368144.html;1024;768
Also I didn't see any relays that were powering the fan.
I realize another possibility could be a bad thermoclutch or whatever it's called on the belt-driven fan.
Thanks again. :smile:
Just trying to get ready for rallyX in a couple of weeks.
My car: 1989 Nissan 240sx with a 1992 KA24DE engine. Mostly Stock
A month ago I decided to do a complete AC Delete since the last guy had already removed the compressor. I gutted the AC box behind the dash, removed the condenser, evaporator etc. To remove the condenser I had to pull the radiator so at that point I flushed the fluid, bled everything and pulled off an electric fan that the previous owner had installed just to simplify things for now.
As soon as I started the car up and drove it I noticed it was taking forever to heat up. If I let it sit in the garage(its pretty cold outside) it warms up to operating temp after 15 minutes however as soon as I begin driving the temp plummets. I know what you're thinking; this guy has a thermostat that is stuck open. Seems reasonable but the timing of the problem seems too weird. Why would the thermostat stop working as soon as I flushed the coolant? I personally think it has something to do with my unplugging the aftermarket fan.
Any help or suggestions are welcome
*one important bit if info is that my lower radiator hose has clearly been modifies and looks like this :
https://www.google.com/search?q=s13...fan-controller-optional-t368144.html;1024;768
Also I didn't see any relays that were powering the fan.
I realize another possibility could be a bad thermoclutch or whatever it's called on the belt-driven fan.
Thanks again. :smile:
Just trying to get ready for rallyX in a couple of weeks.