Nissan altima 2003 3.5


Asked by Jun 10, 2016 at 06:23 PM about the 2003 Nissan Altima 3.5 SE

Question type: Maintenance & Repair

Hey everyone. I really need someone who knows abouts
cars advise. I currently am driving a Nissan altima 2003 3.5
SE and it keeps over heating. The car overheats 3x faster
when the air conditioner is on. I've changed the thermostat.
And had the radiator checked out but still. The air
conditioner works and the heat. The car goes into a neutral
state when it gets too hot.the slip Can anyone give me
some possiblities what could be going on? My check
engine light won't turn off  nor the slip light and two others
as well. I'm getting different answers from people. I have a
2 yr old that gets therapy 5 times a week and I really need
this fixed.  Please help ?

1 Answer


Have you changed the motor oil. Checked the transmission oil, And tire pressure? All these things will put more strain on the engine and make it heat up faster, Is there any rattling noises coming from th engine? Is the cooling fan working? How many miles do you have on it? Is it leaking coolant. Hoses wear out after time and leak and will cause over heating. Also check the radiator resevior. Is it full? And does the cap vent properly? If all else fails take it in to a trusted mechanic and have them check what codes its throwing with an obd reader. When the check engine light comes on it will not tell you exactly what to check. Sometimes visual inspection will do. certain conditions like yours require a scan tool. Good luck.

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