10-18-2013, 07:13 AM
Join Date: Aug 2006
Location: South Carolina, USA
This is a tough one to sort out given the language barrier / explanation here.
Bottom line (IF
I understand the problem correctly) you should not have to by-pass the aux fan to made it run constantly. There are other issues causing the problem.
MY guess is that the radiator and / or the engine coolant passages are so
clogged that the vehicle simply overheats.
I'd replace the thermostat (cheap and easy) and then
the radiator, if the problem persists.
Also add the model, year and engine size to your posting.
'99 Grand Vitara JLX, 2.5L V-6, 4WD, 5 spd std, '00 "Limited" leather interior
'72 Nova. SB, TH-350, PB, PS, A/C.