On my 86 i noticed a dried up stream of coolant under the exhaust manifold but it gets wet and then drys, but i can see that the stream stops before it reaches the head. only on block is the stream and it starts right where the little coolant pipe is that carrys the coolant to the heater core but i felt of the pipe and its not leaking. This has me worried that my block is leaking but i dont think it is the freeze plugs. its between the two on that side i think! What could it be?? help

 

how many miles do you have on your pickup? hoses and clamps may need to be replaced

 

98k miles lol its wet where there is a little flathead screw looking thing at between the freeze plugs

 

Here's a hint: whenever you remove a hose, clean the surface of the pipe, and put some Permatex form-a-gasket #2, non-hardening gasket sealer on the joint... its the black greasy kind of stuff... not silicone... if you use this stuff, you dont have to sooooper-tighten your clamps, and it seals better.
** post a pic of your leaky area **

 

ok its nothing to do with hoses or clamps the flat head screw thing im describing is in the block it self between the freeze plugs on the exhaust side! i think its leaking around that screw

 

Bump, it looks as though it may be dripping down from exhaust manifold???

 

The only opening to the water jacket on the exhaust side is the drain that is at the back side of the block. If you have drippage coming from under the manifold... in the middle... then it is probably a headgasket....