Check the thermostat it could be leaking from the the gasket. Follow the big hose going from the radiator to the top of the engine by the air intake. Should be 1 big one and a smaller hose that goes to the heatercore. The thermastat is right where the big and small hose are. Remember gravity brings things down.. Dont look under the truck start from the top

This engine may not look like yours, but see that big black radiator hose thats going to the top of the engine ? Start looking there

http://www.google.com/imgres?imgurl=...26tbs%3Disch:1

 

yeah i checked there but i cant see anything because the hose goes right under the airbox and i will have to remove it to see whats going on up top. I got a chiltons book, it shows like some sort of screw that the airbox sits on but it doesnt specify if I have to unbolt it or anything.

 

Also, I saw in the chiltons book that theres supposed to be a bolt or rubber gromet in the front axel where you check your axel fluid level and it looks like it doesn't have one on the truck. Should I be worried?

 

Two weeks ago I replaced my water pump only to find a leak about a week later. There is a bypass hose (as previously mentioned in this thread) that runs under the A/C compressor and that was my culprit. I wanted to change it when I did my water pump but didn't feel like removing the compressor, intake, alternator, and that big bracket that holds everything. That was mistake number one!

If you do end up tackling the water pump yourself, I'd suggest replacing that hose too. It costs about $5 and it's well worth your time. Also, if you aren't used to working on a vehicle one tip I can give you is use ziploc bags and a sharpie to mark which bolts came from where (it makes reassembly a lot easier).

From the pics it looks like a water pump but check all your hoses first as well as the thermostat housing. Hopefully it's not the freeze plug, cuz those are a pain in the ***.

I wouldn't be worried about the plug missing from the front axel but you might want to find one and put it in there for safe measure.

 

I think you should take another look.

 

What do you mean? I went back up and checked the book and there is a rubber piece or bolt that goes on the axle. Its called the axle filler plug according to chiltons and you remove it and put your finger in it and the fluid should be a little below the filler plug hole.

 

If it isn't in the cover, it will be on the side of the pig. Just a pipe plug.....

 

Well my brother inlaw took another look and he said that another leak is possibly coming from the block heater. What type of block heater is used in the 5.2L?

 

Is it factory? Might wanna request your build sheet, if you haven't already. If you don't use the block heater, just get a freeze plug to stuff in there.

 

Did you find the fill plug for the diff?