Join Date: Jan 2018
Feedback Score: 0 reviews
Well, at this point I'm kind of at a loss. I went home today and got up under the truck...yep, it's got that same drip under the starter...and a small spot on the floor. I dry everything up under the truck......and I checked the top of the valley where the EGR delete hose is...perfectly dry. I got back under the truck with my borescope and spent some time looking at everything up around the starter. The freeze plugs were all dry, the block plug was dry, the block heater was dry, even up under the intake where the EGR delete hooks up....dry. .......everything was dry.
I hooked my compressor up to the coolant system......hit it with 14psi. I went though everything.....nothing is wet, nothing is leaking, everything looks fine. The one thing I DID find, was that if I worked that little arm on the valve on the coolant line going to the heater core back and forth, I could get some coolant to cove out where where the arm pivots around. Other than that....nothing. Even after having 14psi pressure in the coolant system for 30min....nothing.
So at that point, I disconnected the compressor, and fired up the truck. I let it idle for about 45min....got the coolant temp up to around 194deg. Nothing.....no drips anywhere, nothing under the truck, nothing anywhere. I even turned the A/C on for a while, and the heater on for a while to cycle that valve in the cooling hose open and closed........nothing. I even put a paper towel under the EGR tube, one under the heater core valve, and stuffed one down into the valve long the joint there the head meets the block. After idling 45min.....NOTHING. No signs of coolant anywhere.
I'm letting it cool down now....maybe as it cools down something starts to leak? At this point...I'm stumped.......maybe that little valve had leaked a little bit at one time, and it just took a while for all of the coolant to drain down the side of the block and on the the ground? Very strange......I hate issues like this that are hard to fine, and don't follow any logic!
2005 F250 6.0 PSD, ARP Studs, Felpro HG's, EGR Delete, IPR Coolant Filter, Bilstein 5100s, Blue Spring Mod, IDP Custom Tunes