Help in diagnosing a leak. (1 Viewer)

[Major Nelson]

So head out to the garage this morning and see this nice little red puddle on the garage floor.

Has a 5.3 Vortec

Pulled the skid plate to see if I can find the leak. At first I thought it was the lower radiator hose since it's pretty wet from the top part....but then when I looked around more the driver's side of the radiator also has drips. the other lines looked clean/dry and nothing weeping from the clamps. I didn't pull the grill off but everything looks bone dry in front of the radiator so I think I'm good there.

Any other spots I should check? My plan right now is to replace the lower hose and run it in the garage to look for leaks...just trying to minimize stops at O'Reilly's.

Thanks.

 

[cwwfj60]

Are you running red coolant?

Is this an automatic truck?

Assuming it’s auto, I suspect trans cooler hoses leaking.

Secondly, power steering, do you have a cooler that could be leaking?

 

[OSS]

Worm screw clamps on small diameter tubing are always suspect. Toyota doesn’t use them for a reason (though you now have a GM engine)

 

[Ernboto]

If I had to guess I would say that’s transmission fluid being sprayed from the cooler line outlet hose. As evidenced from the spray pattern

 

[Ernboto]

@Major Nelson have you dug into the leak? What was the result?

 

[Major Nelson]

If I had to guess I would say that’s transmission fluid being sprayed from the cooler line outlet hose. As evidenced from the spray pattern

I’m thinking this is the reason too.