Ive noticed a very small coolant leak from my over flow tank. ive seen it happen only twice now over a two week period. The puddle i noticed was only about the sixe of a baseball. Here are some pics.



Any ideas guys?

I didnt find anything upon the quick inspection i did.

 

I presume that the pictures show the streaks down the hose but it's a bit hard to tell.

Try cleaning things up with simple green or something similar and seeing if you can detect the leak a little more precisely.

What about the seams in the reservoir, they have a tendancy to crack?

TinyWonder

 

I recently replaced my cap on my tank. It was a source of my coolant leak but it was more of blowby than a drip.

 

Ill look at it for cracks. The top seems to be fine.

 

Is that coolant bottle discolored or is the coolant that rusty color?? A good flush and ELC coolant would be good while your in there.

 

Everything looks normal. I plan on doing a coolant flush with elc, coolant filter, 203 thermostat, and possibly a new water pump. Any suggestions on the above?

 

Bump, bump.

 

I replaced my coolant tank this summer having spills in the same area. Took me a while to figure out what is going on, because small crack on the back of the tank was invisible and it spilled coolant only under extreme pressure when I was driving. If your tank is brownish like the picture shows, that's the sign of deterioration. Get a new one. With my business I got 20% discount at the stealer and walked out the door with new one -leaving about $80

 

Cool. Thanks. Looks like another item to add to my coolant system maitenance job.

 

There's been some recent discussion on the advisability of using the higher-temperature thermostat, as it tends to increase oil temperatures as well.

Search is your friend.

Pop

 

I pulled my 203 recently after about 5 years and put in the stock one. My truck runs better at the cooler temp. I drove it 5 years each way. I love the billet housing though.

I put a new reservoir on mine and it looks great. Might not be your leak problem, but after ten years those things start looking pretty bad. With new coolant, it looks great.

 

I also pulled my 203* out in favor of a 195*. While I was at it, I put in my new degauss bottle, rebuilt my oil cooler, and switched over to Delo ELC. If you haven't rebuilt your oil cooler yet, DO IT! My green o-rings were hard as a rock, ask Clay or Ron! All I had was a minor oil leak at the front gasket too........

 

A new Degauss bottle is cheap, like $50 and I would go with an OEM water pump as well for less headaches. Red ELC is a great improvement as well as the stock t-stat, IMO.

 

The two most common places they tend to leak intermittently are the thermostat housing and the bolt together elbow joint on the water pump for the lower radiator hose.

 

where can i get a new Degauss bottle for that price Clay?