freekie

I have a massive coolant leak coming from what appears to be the Drip tube for the AC condensation. Im losing coolant fast. I put it in and it comes right back out this tube.. I THINK.. I cant get under the car very well to be sure but Im thinking the heater core? Any thoughts or think I should try to get a better view from underneath?

BigBlue77

I would try and get a better look to be sure that where it coming from, not just running down the firewall from one of the heater core hoses. If it is in fact coming out of the drain tube, then yes, you heater core has a hole.

xeroinfinity

Welcome to AF.

Does sound like a heater hose might be the leaker.
Not much else to leak coolant in that area...

Getting a better view will obviously help locate the problem.
Just use jack stands if you are going under

__________________
1999 Grand Am SS & Grand Am GT 3.4 OHV


Who'd ever thought the "G" in GM would stand for Government Motors.

freekie

Thanks for the welcome and replies.

This is what I see after closer examination from underneath.

On Driver Side 2 Rubber hoses entering the Firewall. I believe these to be heater core. Passengers side 2 Steel Lines going to firewall. I believe these to be AC related. Under the 2 steel lines is a drain. My coolant is coming from there. So bad heater core?

Now Whats the best way to get to this thing? I found this link posted by xeroinfinity http://www.automotiveforums.com/vbul...d.php?t=672471 but its for the 99+ . Would it be similar?

What are sizes of the rubber hose going to the core? I would like to disconnect them from the core and join together to bypass the core so I can atleast drive it.

Thanks again for all your help.

xeroinfinity

Yeah here are some removal procedures for your 98'.
The Zone

Bypassing the hoses might cause your car to over heat .

A simple search of the GA forums found several threads on this topic. Like this one...
http://www.automotiveforums.com/vbul...r+core+removal

Good Luck

__________________
1999 Grand Am SS & Grand Am GT 3.4 OHV


Who'd ever thought the "G" in GM would stand for Government Motors.

freekie

Well I got it done today. Took 4 hours. It had the OEM one in it and its really a poor design. The Inlet and outlet tubes are like a plastic and just push onto nipples on the Core. The plastic split where it connects to the cooler. The New one is all alluminum including the inlet and outlet tubes.

Thanks for all the help.