Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Car still overheating. Just replaced radiator, water pump and thermo.

Bunnywith240 · 12-09-2011, 11:06 AM

Okay guys I need your help. Here's the breakdown:

Car overheated suddenly one day. Plastic OEM radiator cracked.

Purchased brand new Mishimoto radiator, Nissan thermo and water pump.

I didn't test the old thermo but the spring looked faulty. Replaced the water pump since I was getting in there anyways and better to replace it now even though it was working fine(currently at 138,000 miles).

Replaced everything, buttoned it back up, purged the air out of the bleeder valve. Warmed up the car let the thermo open and topped off the coolant. Shit is still overheating, WTF???

Upper radiator hose is hot while lower hose and water neck are cool to touch.

Help a brah out.

EDIT: PROBLEM SOLVED.

I think we can say that on a KA you have to bleed the system, run the car till the thermo opens, then fill and bleed again and you should be good to go.

12-09-2011, 11:06 AM	#1
Bunnywith240 Join Date: Oct 2011 Location: California Posts: 46 Trader Rating: (0)	Car still overheating. Just replaced radiator, water pump and thermo. Okay guys I need your help. Here's the breakdown: Car overheated suddenly one day. Plastic OEM radiator cracked. Purchased brand new Mishimoto radiator, Nissan thermo and water pump. I didn't test the old thermo but the spring looked faulty. Replaced the water pump since I was getting in there anyways and better to replace it now even though it was working fine(currently at 138,000 miles). Replaced everything, buttoned it back up, purged the air out of the bleeder valve. Warmed up the car let the thermo open and topped off the coolant. Shit is still overheating, WTF??? Upper radiator hose is hot while lower hose and water neck are cool to touch. Help a brah out. EDIT: PROBLEM SOLVED. I think we can say that on a KA you have to bleed the system, run the car till the thermo opens, then fill and bleed again and you should be good to go. Last edited by Bunnywith240; 12-10-2011 at 10:39 AM..