Posted: Jul 20 2015 at 4:08pm | IP Logged

Chito,

First we need complete information about your Truck, includeing mileage, like Lakota has done in his signature.

Check under the Water Pump for leakage @ the Weep Hole.  You'll need a shop mirror, but if you can get a Finger under the Water pump @ the Weep Hole,, you might can check that way,, especially if you see liquid on your finger.  If liquid detected @ the bottom of the Water Pump, then that is a good indication that the Water Pump is Failing.

Go over Lakota's List, it's a good one.

Take the Radiator Cap off,, and check the level.  While the radiator Cap is off, have someone crank the engine, and look for bubble's.  Rev the Engine, just a little bit,, and again look for bubble's.  If you see Bubble's,, it might indicate a leaking head Gasket. 

If you have a leaking Head Gasket, there is a good chance that it is pushing the coolant out of the radiator.  So how is the Coolant level in the Radiator?