SR heats up at idle, cools while driving - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

kyral · 03-16-2016, 11:03 PM

I have an SR that heats up at idle and keeps climbing but when i i get moving it starts cooling down. i dont think its a warped head or headgasket issue because itcools itself back down and the coolant doesnt geyser out of the rad cap when i open it

has an aluminum rad and a FMIC

I read it might be a clogged cooling system, air in the system, a half stuck thermostat or my cooling fans.

im gonna get a coolant flush. i tried to bleed the air today but i might not have done it right (removed the bleeder screw by the exhaust side of engine)

anyone got any input on this?

03-16-2016, 11:03 PM	#1
kyral Zilvia Junkie Join Date: Nov 2012 Location: wisconsin Age: 33 Posts: 450 Trader Rating: (7) Rides Gallery: kyral Feedback Score: 7 reviews	SR heats up at idle, cools while driving I have an SR that heats up at idle and keeps climbing but when i i get moving it starts cooling down. i dont think its a warped head or headgasket issue because itcools itself back down and the coolant doesnt geyser out of the rad cap when i open it has an aluminum rad and a FMIC I read it might be a clogged cooling system, air in the system, a half stuck thermostat or my cooling fans. im gonna get a coolant flush. i tried to bleed the air today but i might not have done it right (removed the bleeder screw by the exhaust side of engine) anyone got any input on this?