How to bleed air from coolant system 94 grand prix se 3.1

[willieb22]

Just changed water pump because of a leaking gasket. Now the car is overheating and the heat doesn't work. I believe this because the coolant system needs to be bled. Could someone advise.

Regards Willie B.

[richtazz]

Here is a link to an old post of mine, hope it helps!

http://www.automotiveforums.com/vbul...=bleed+coolant

edit, link doesn't work (I tried), let me find it again

[richtazz]

Here is a copy and paste of the thread where I originally referenced the link above that no longer works:


Here is how I bleed these engines. Jack the front of the car up so that the radiator cap is higher than the engine. Leave the t-stat and housing off, and s-l-o-w-l-y fill through the radiator until coolant comes out the intake where the t-stat should be. Now install the t-stat and housing, and remove the small hose at the transfer tube where hooks to the engine (leaving the rubber hose hooked to the transfer tube). Crack the bleeder at the t-stat housing, and insert a small funnel into the hose on the transfer tube that you disconnected from the engine. Again, s-l-o-w-l-y add coolant through the transfer tube until it comes out the bleeder at the t-stat, then close the bleeder. Continue to add coolant until it comes out the pipe on the engine where the hose you're filling through attaches. Hold your thumb over the pipe, remove your funnel, and quickly re-attach the hose to the engine, doing your best to not let air in or too much coolant to escape. Finish filling the radiator, replace the cap, and fill the coolant reservoir. Start the engine an let it run until it gets warm, (set the heater to hot so coolant circulates through the heater core also). After the engine starts to warm up, crack the bleeder at the t-stat to see if any air/steam escapes. if not, you're done. If it does, keep working the bleeder until no more air escapes. Good Luck!"