I have been noticing my car has been eating coolant.I have checked for leaks and cant find anything.Today I checked the coolant and it looks like sludgy coffee and it was low again.I think the coolant is coming out of the tailpipes because my rear bumper (which is white) gets a splattering of some type liquid all over it.The car does smoke at wot but thats the only time.I also pulled the line that comes off of the pass valve cover and connects to the throttle body and it had white crap in it which might be normal because of condensation I dont know.When I checked my oil dipstick it looks good. besides all these problems the car runs very strong.So any opinions?

 

Is it over heating at all sounds like could be a cracked head gasket. Also is it miss firing at all. But before you assume that do a compression test.

 

No it has never overheated. I don't feel any misfire. Yeah I'm going to have A compression test done. It's eating coolant at a slow rate but it might be the beginning of a head gasket problem.

 

Get a radiator pressure tester and pump the radiator up and see how quick it loses pressure. It might also pinpoint the leak. You can also get some UV dye and a light that can spot a leak.

 

Chocolate milk in the radiator is a cracked block, a cracked head or a failed head gasket. What does the oil look like?

 

if you're smoking and loosing coolant rather quickly with no signs of it dripping under the car, AND its all dirty, sounds like a head gasket totally. If your head gasket fails in the right place, it sucks in coolant on each intake stroke and blows burned fuel and exhaust into the cooling system on the compression and combustion. this will quickly turn your coolant a nasty color and use it up.

If you have the slightest feeling that your engine is eating the coolant and its not dripping out, then for gods sake don't drive it anymore until you have it narrowed down. there is no reason to need an engine rebuild, you may spin a bearing or it'll overheat and warp stuff.

 

The oil is clean no signs of coolant.

 

Yeah I'm not driving it anymore. And I deff don't want to do another rebuild I just did the 383 over the summer the motor prob has somewhere like 3000 miles on it.I hope it's just a head gasket.

 

I could be wrong, but that seems to indicate that oil under pressure is finding it's way into the water. There is no oil under pressure in the head nor in the gasket area. Depending on the options there are two places that oil under pressure can get into the coolant, the oil cooler and a crack in the block. A failed oil cooler is easily fixed, just buy a non-cooler filter adapter and reroute the coolant lines. A cracked block isn't quite as easy...obviously. I guess the first place to start is to find out what the stuff in the radiator really is...maybe it isn't even oil.

Good luck.

 

yeah go take a 1-2 cup sample of coolant and oil to get analyzed (like 30 bucks) if you can't track down your problem.