I replaced the radiator a month ago and have been adding a little fluid every week or so. I checked the overflow today and it was almost full.

What's the deal???

Have you replaced the rad cap? If not, try that.

If the cap is good, you may have a blown head gasket or cracked head, so that engine compression is pressurizing your cooling system, and forcing the cap to relieve pressure by blowing coolant into the overflow. You can buy a chemical test kit at a real auto parts store (like NAPA) that will tell you if you have combustion products in your coolant. Best I recall, it was like $30 ten years ago.

They also have pressure testers that replace the cap to monitor pressure. When my car blew the headgaskets the guage jumped around a lot and I steadily lost fluid as it leaked into the combustion chamber.

Something to think about. My head gasket was letting exhaust in my water system and forcing water to fill and over flow the over flow tank.

Thanks for the bad news guys. <img src="/forums/images/graemlins/kewl.gif" alt="" />

I hope this doesn't get any worse. I can live with losing the little bit of fluid, and the smell of coolant in the cab - at least for the winter. <img src="/forums/images/graemlins/cheers.gif" alt="" />

It will get worse, and rather quickly, and all the time it's getting worse, the antifreeze is getting into the oil and attacking the main and rod bearings, and rusting stuff, and diluting the oil (AND sitting on the bottom of the pan at the pickup, where it pretends to be oil and pretends to lube the whole motor).

I would not ride it to the end if I wasn't planning on a complete rebuild instead of just head gaskets.

I just spent $412 on head work, and $477 on parts so far (head gasket set, ALL the hoses, ALL the belts, ALL the belt idlers and tensioners, water pump (and helicoils to fix the two stripped threads in the back half minibolt holes), crossover pipe gasket, rtv, 2gal antifreeze, case of Castrol) and I still need thermostat, oil filter, and pan plug copper washer, and probably an ohtwo sensor, since my CEL is about to burn out from water/oil fouling of the whole exhaust. AND about 8 hours to put it back together and time it. Including at least 1/2hr of cursing, holding moshed fingers/knuckles/elbows. I save a net of at least 15min by taking off the hood, and avoiding head dings on the latch...

I've been there and I am almost done with mine. Do not wait until it worsen because it will cost big $$$ then. I had exactly the same problem, when I dumped the oil it looked like Yooho (spelling, since became lactose intolerant I have not seen one of those) <img src="/forums/images/graemlins/smile.gif" alt="" /> And the exhaust fumes? ohhh sweet and fruity <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" />

I got a head from Clearwater Cylinder Heads for $375 plus all the other bells and whistles I am up to like $450, Way better than a new engine.

Go ahead and take care of that as soon as you can. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Check your heater core for leakage. If the scent is in the cab, I would suspect it first.

Ed