I ran into an issue almost a year and a half ago with my 2005 Jaguar S-Type 3.0 v6. While I was cleaning the vehicle I noticed that on my overflow tank there had been coolant slowly leaking from the nipple where the hose connects to. Barely touching the hose itself, as I examined it a little further I noticed that the piece it held on to was broken and was barely hanging onto the overflow tank. After trying many different things to keep the hose from leaking i wound up buying small hose attachments and placed them into both the hose and the expansion tank. (PIC WILL BE UPLOADED). After a few months of driving and checking on it I found that it no longer leaked as it had before but I am not comfortable with leaving it like that. A few months ago I wanted to see why I was no longer recieving A/C. Doing research I found that since I had coolant leaking it caused the Dual Coolant Control Valve to go bad. Reaching down to clear some of the Coolant residue I wound up pulling on the hose breaking the nipple on the upper radiator hose as well.:icon _mad: Doing the same thing I had for the overflow tank I forced a connector piece onto the overflow tank again as well as on both the hoses. I haven't had any issues driving like so for these past months but I don't wanna run into the day where this temporary fix no longer works for me. I want to get it fixed properly but am interested in something I found online. Has anyone ever done what is on the last picture to their overflow tank??? I'd like to do this to it but want an opinion on it.

 

Sure, that's a racing spec STR, mods costing thousands. You can buy a tank much cheaper.

 

I think, it just cosmetic blue toy rings for kids. Am I right? Is it cosmetic mods?

 

I figures that as well but, my reason for wanting to do this is so that I wouldn't have to run into this situation again. It'd be great to do but if it's a hassle then I would just stick with the oem tank.

 

Just get a new stock one. Should be fine for years.

BTW Last picture is a heavily modded '05 Mustang 4.6 L . That is the stock coolant reservoir with maybe an aftermarket bulkhead fitting on the reservoir, or that is just some engine dress up bits....I knew the guy who owned that car on line in mustang forums, lost touch with him or I'd ask...

 

Thanks, my old coworker has one and had the same kind of hose attached to his reservoir. It'd be great to be able to do the same so that at least I'll have peace of mind that the piece wont be breaking off over time. I have the replacement one here but now I am stuck with 2 things finding the correct upper radiator hose with the attachment and installing both the hose and the reservoir tank. Any ideas??

 

That is only the tip of the iceberg!

Your car has had little to no maintenance from the look of things.

If you plan to keep it you are just starting on the work.
Change ALL the coolant hoses and the DCCV when you change the top tank.
Also change the thermostat and plan on doing a good coolant flush. Refill with the proper Dex-Cool antifreeze.

Leaking coolant did not make your DCCV go bad. Your DCCV went bad and started leaking coolant. It's a wear part and pretty much 100% of the time the DCCV will fail and need replacing. The red stains on it are a classic sign.

Are you aware that running a bad DCCV can and does damage the climate control module? So after the DCCV change your heat and AC still might not work.

Watch for more breaking plastic as you will run into that because of the age of your car.
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