G35 Coupe V35 2003 - 07 Discussion about the 1st Generation V35 G35 Coupe

Overheating problem

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Old Dec 6, 2023 | 11:25 PM
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camstill999's Avatar
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Light blue coupe with sebring exhaust, plenum spacer and z1 intake
Overheating problem

So here’s my problem, i’ve gone through 2 radiators now. The first one cracked after i drove it stupid, the second one got a hole drilled through it. After I put the new radiator in it was still overheating but it took a while to get there. it got worse so I thought it was the thermostat, replaced it and the overheating problem is still there, just slightly better. Realized my radiator fans weren’t turning on. just replaced them today, they’re running fine. full on coolant, bled the system to the best of my knowledge and ability. It’s still overheating. My heat also doesn’t work, and i don’t know what’s causing it. The only things i can think of is it’s not an OEM radiator, and maybe my water pump. I have 2 days to figure this s*** out. someone please help me
 
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Old Dec 29, 2023 | 05:06 PM
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shurur's Avatar
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2003 G35 Coupe
Originally Posted by camstill999
So here’s my problem, i’ve gone through 2 radiators now. The first one cracked after i drove it stupid, the second one got a hole drilled through it. After I put the new radiator in it was still overheating but it took a while to get there. it got worse so I thought it was the thermostat, replaced it and the overheating problem is still there, just slightly better. Realized my radiator fans weren’t turning on. just replaced them today, they’re running fine. full on coolant, bled the system to the best of my knowledge and ability. It’s still overheating. My heat also doesn’t work, and i don’t know what’s causing it. The only things i can think of is it’s not an OEM radiator, and maybe my water pump. I have 2 days to figure this s*** out. someone please help me
Hope you figured it out.
If heat is not working, you likely still have air in the system...namely the heater core.

Super common problem.
 
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