1993 240sx overheating issue
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S13inBatnRuge
- Posts: 569
- Joined: Fri Feb 11, 2005 6:37 pm
- Car: 93 240sx
1993 240sx overheating issue
sometimes when im at a complete stop for an extended time say a red light for well over 5-6 minutes the car will start to overheat but the moment i start accelerating again it cools down with no problem. ive heard several things on what it could be i just wanted someones opinion on here. thanks for any help.
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Gold Digger
- Posts: 5823
- Joined: Sun Apr 11, 2004 8:48 pm
- Car: Current:
2011 Infiniti G25X
Former:
1995 Nissan Skyline GT-R V-Spec Midnight Purple
1990 Nissan Laurel Club S Turbo Two Tone Pearl
Re: 1993 240sx overheating issue (S13inBatnRuge)
I'm not 100% positive on this but it could be one of two things most likely.
Bad water pump, or your clutch fan is shot.
A way to test your clutch fan is to get the car up to operating temp and have someone shut off the car. If the fan stays spinning for more than a few seconds, like it's free wheeling, that is good indication your clutch fan is dead. Replacing it is pretty simple, too.
The water pump is more expensive and a little more difficult to change, so I would suggest trying the clutch fan test first and go from there.
Also, if you do change out the water pump and/or the clutch fan, take out your radiator and blow some compressed air through it to clean out the fins and get any of the dead bugs and whatever else in there out.
Hope you get this back to normal.
Bad water pump, or your clutch fan is shot.
A way to test your clutch fan is to get the car up to operating temp and have someone shut off the car. If the fan stays spinning for more than a few seconds, like it's free wheeling, that is good indication your clutch fan is dead. Replacing it is pretty simple, too.
The water pump is more expensive and a little more difficult to change, so I would suggest trying the clutch fan test first and go from there.
Also, if you do change out the water pump and/or the clutch fan, take out your radiator and blow some compressed air through it to clean out the fins and get any of the dead bugs and whatever else in there out.
Hope you get this back to normal.
Re: 1993 240sx overheating issue (S13inBatnRuge)
before you do anything, try bleeding the system.
the bleeder screw is at the beginning of the coolant return hose (the top hose on the rad). it says "never open when hot".
with the engine cold open the bleeder screw, the rad cap, and the resevoir. top off the resevoir with whatever coolant/water mix you prefer. start the car. run it for a few moments, then start filling the rad until coolant comes out the bleeder screw hole. when this happens, you're done. put everything back on and drive the car.
if the problem is still happening, then start looking at other things
the bleeder screw is at the beginning of the coolant return hose (the top hose on the rad). it says "never open when hot".
with the engine cold open the bleeder screw, the rad cap, and the resevoir. top off the resevoir with whatever coolant/water mix you prefer. start the car. run it for a few moments, then start filling the rad until coolant comes out the bleeder screw hole. when this happens, you're done. put everything back on and drive the car.
if the problem is still happening, then start looking at other things