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Hi guys, I have a 96 7.3 with a coolant leak coming from somewhere on the driver's side of the engine, towards the front. It doesn't appear to be coming from anywhere on the top of the engine, or any of the coolant hoses, or the water pump weep hole. It is running down what looks like the back/underside of the waterpump, and collecting on the driver side battery ground block. Both fuel lines are also routed through this ground block. I have felt the fuel lines and it doesn't seem to be running down them. Also doesn't seem to be running down the battery cable or any of the coolant or PS hoses. I will attach a picture of where it's collecting. It is continuing to leak with the engine off and sitting, has been sitting for a week now. I'm trying to figure out where it is coming from and how to stop the leaking! I'm concerned it will eat through my battery cables and cause a short.

Also, it started after I had it in the shop for an oil leak and they power washed the engine bay. Could that have caused this?

Thanks in advance for the help.

It appears to be coming from this dark space up above, labeled as 1. There is a little ledge up there and it feels wet around the gasket where what I believe is the back of the water pump meets some other piece. It is collecting at 2, which is the ground block.
20210503_175831.jpg
 

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If you haven't already, check the thermostat housing, the cheesy light steel piece that bolts to the water pump and the upper radiator hose slips over. It's hard to tell if that's leaking sometimes, look close.

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95, F250 7.3
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If you’re really having a lotta trouble finding the source, hose it all down, then dump some dye in, take it for a little drive, and hunt for the leak with a black light.

Short of some aftermarket modifications, there’s really not much going on coolant wise on the D side. See any dried coolant stains? Will kinda look like a light film of crystals in whatever color your coolant is
 

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The oil cooler header bolts to the front cover right where your #1 arrow is. It is a passage carrying coolant. The gasket can leak or the front cover can crack just past the gasket surface a little closer to the center of the engine. Mine was cracked. Not uncommon on high mile trucks.
 

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The only good news I have for you is don’t worry about the battery cables.
 
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