which firewall hose is heater inlet hose?

[slalomking]

Hey guys,

At 100K, I noticed the water temp needle is riding a tad higher and sooner than in years past. I figure it's high time to do a radiator flush on the Ecotec.

I placed Preston Flush 'T's in all my past cars but I guess my age and technology are passing me by. I cannot figure out which of the 2 water hoses coming out of the firewall is the heater inlet hose (location to place the flush "T").
They both lead to metal stems very close to each other which in turn are difficult for me to determine what the metal strems are attached to. (Yeah, I know, old geezer know nothing noob..:lol: ).

Is it the heater inlet hose the driver side or passenger side hose? Also, is there any air bleeder valve or stem that would help get bubbles out?

Thanks in advance guys. Happy Memorial Day.

[Redog]

That's really a good question. Im not 100% sure which one is which, but working on other motors it's the one on the far right

Don't you just remove both and splice them together for this anyway?

[slalomking]

That's really a good question. Im not 100% sure which one is which, but working on other motors it's the one on the far right

Don't you just remove both and splice them together for this anyway?

Well, on the Ecotec Aleros, they are both about an inch from each other on the driver's side of the firewall.

You do not splice them together w/ the flush T- the T goes inline with one of the 2 lines but the lines stay seperate- you definately do not splice the heater intake and intake manifold lines.

My ? remains: Is the heater inlet line on the driverside or passengerside of the two?