Archived leaking anti freeze

[f.boyle]

My truck has been parked for about 15 hours. I let it cool it wasn't hot before I parked it and I was uynder it tis morning around 11:00 and no anti freeze now 2:00 there is a puddle under the truck it a pears itr leeked out around the cap whats up? do I need a new cap? or is it more seriose? the anti freeze is full right to the top of the radiator it apears that the over fill line is non functional but I bleew threw it with no problem.

chainsaw

 

[DSiemens]

This might not apply to you as you said the truck was not hot, but at one time I experienced a puddle under the truck. Thought the water pump was shot. A close look revealed that the return (overflow) hose leaked at the rad.

 

[MKellam]

I had this same problem on a V-6 Gas truck, found out it was the "casting Flash" when the upper tank was manufactured. If you look closely, there are two "lines" where the two pieces of casting meet, One at 12 O'clock, and one at 6 O'clock. This "Ridge" can cause a coolant leak to "Appear" when the engine cools and siphons coolant from the reservoir.



Please post what you find so I may help others.



Diesel Mike