Rich, How much space between the heater hoses and clamps to the firewall? Most heater tubes thru the firewall have a small hole on the bottom side about an inch from the end of the metal tube. That lets you start the noses on and bleed the air out of the heater core and then when the air is expelled and fluid runs from the hole the hoses should be pushed almost to the firewall and the clamp close enough to the firewall to seal off the bleed hole when tightened. If your hose and/or clamp isn't close to the firewall, try loosening the clamp and moving hose and clamp closer and see if this solves the problem. It only takes a few minutes and sure beats pulling the heater core out and after checking and not finding any leaks, THEN noticing the bleed holes. Okie Bob "Richard W. Tibben" <tibbmopar@xxxx> wrote:Greetings, I have a small coolant leak in my 300G that I can't quite figure. I find the coolant on the firewall. It seems like it might be coming from the plug in the firewall that is located to the right and just below the heater box (looking from the front of the car). Before I take it to the local radiator shop I would like to see if anyone can determine where it is coming from. Thanks! Yahoo! Groups Sponsor To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! [Non-text portions of this message have been removed]