Chrysler Repair: Coolant reservoir bubbling and rad leaking, chrysler concorde lxi, 2000 chrysler concorde lxi


Question
Hi, I have a 2000 chrysler concorde lxi with 3.2L V6 engine. I have had some steering problems with this car, which I think is outside of this current problem I am having now. I recall driving through a flooded highway, it was a lot of water and after driving almost mid front end through it my car started slowing down, but then it sped off about a few minutes later and some white smoke came out of tailpipe, and it was fine after. After that the next few days I noticed some antifreeze smell coming from engine, I opened it to discover an upper radiator hose with a hole in it, I replaced the hose and refilled antifreeze. I then sent the car to a shop complaining about the coolant reservoir bubbling inside when the car is turned off for a few minutes after driving long distances. The car's temp gauge is within normal ranges, the car does not overheat or heat up quickly. They changed the antifreeze saying that I had water in the system, few days after that the bubbling returned, I went to the shop they pressure tested reservoir cap and system since the car does not have a radiator cap and it is a sealed radiator, after that they told me that htere is no leak in the cooling system. I ran the car myself and checked it out later only to find that the bottom of my radiator is leaking a bit of antifreeze enough to make a small puddle in my driveway, it is coming from the left and the right side, but the lower radiator hose seems to be connected and tight fine. If I start the car and open the reservoir the antifreeze will not move down, sometimes it does, sometimes it doesn't. I have a feeling either I have air in the system, a leaking radiator, or I need a new thermostat or possibly a new reservoir cap. Any help would be appreciated, as the leak seems to be getting worse and the bubbling more frequent.

Answer
Hi Yasin,
It does appear that you have a radiator leak if coolant is found under it on both the left and right sides and the hose is connected and the drain cock is closed. So that may be the first thing to do, replace/repair the radiator.
Then there is a special procedure for refilling the system that involves the use of a Miller tool #8195 filling aid funnel and following instructions that are shown in the shop manual. I can xerox copy and postal mail those pages to you and with them and the tool you can refill the system so as to minimize the trapped air inside. Just use the "thank and rate" tab to let me know you mailing address using the "comments" section.
Roland