it's my moms 99 S-10 4.3 auto 2wd, started overheating.. flushed the dex-crap and put green coolant in, new upper and lower radiator hose, and new OE super stat, everythings good now except the radiator keeps leaking SOMEWHERE not visual anywhere not the heater core inside, oil needs changed but not milky, is it possible its a head gasket?? just hasent made it to the oil pasages?? help me out here, any insight would be appreciated

 

The 2nd gens are built with that is called a "throw away radiator", meaning that the end caps on the left and right side are plastic. I was going crazy due to a leak I could not find, but it ended up being the leftside endcap had to cracks it in that were not visible while the radiator was in the truck.

 

Thats when mine started to over heat,did a flush to get the dex crap out,week afterwards started to lose coolant, then it got worse to were it was over heating,could not see exactly were it was coming from,dripping off back of motor somewhere.did a pressure test(friend had a pressure tester that goes on your radiator cap) then with the motor off i could hear it hissing,turned out the intake gasket went,leaking out in the front by thermostat running along intake then dripping in the back. That fixed my overheating now i have other problems!!

 

Yeah they are pretty cheap my plastic ends busted luckily was able to replace the end caps for $60 at the local radiator repair store

 

sweet, thanks guys ill let you know if the coolant leak and overheating issue persists and what was the cause, but now its not leaking or overheating, we'll see in a week or two