ezrollin

Is the LS1's coolant system an "auto-bleeder"? ...where it bleeds off the air bubbles/pockets inside the cooling system so you dont have to?
thanks

Black02SLPSS

iTrader: (5)

Yes as a matter of fact it is. Makes it so much nicer. Just changed a thermostat tonight FWIW

SSNISTR

iTrader: (10)

Huh? I thought it had to be bleed????

I have read many threads on here after water pump swaps that say run the car with the heater on and add coolant as it needs.

ezrollin

my version of "bleed" is to use the bleeder screw. but I guess your cooling systems didnt come with a bleeder screw

Black02SLPSS

iTrader: (5)

When I was refilling my system I had to start it and leave it running. While it was running i had a funnel stuck into the radiator with a filter pouring coolant into the radiator. While i was filling it up you could see the air bubbles coming out of the radiator where i was pouring it. Once i refilled it with all of the used coolant that came out of it I replaced the cap and cleaned up.

Grimes

iTrader: (3)

i've always bled mine before by leaving the radiator cap open while filling with coolant and revving the engine....

sroach20

iTrader: (31)

take the line off that goes into the radiator from the tb (or crossover pipe for those that did the bypass) and hold it up while you fill up your system.

SOMbitch

iTrader: (8)

That is good to know. When I changed my t-stat I had to sqeeze the the top hose repeatedly for about thirty minutes and keep adding coolant or it would run hot. Never had to do that on another vehicle. Biggest PITA I've ever dealt with for something so simple. Damn hose got hot!