My 1998 bobcat 773 f series leaks hyd.fluid sometimes only when engine is running,it will leak for afew days then I will add hyd.fluid and it won't leak for a few days,what could be causing this?

SOURCE: 2000 Jeep Grand Cherokee leaking antifreeze

I know it's pretty tight in there but youre going to have to get under it and use a light to track the leak down. Anything that leaks runs downward (gravity) so all you need to do is follow the wet spot up to where the wet stops. Likely you will find the leak either at a hose connection or the seam between the plastic tank and metal part of the radiator. (tip: take the cap off while looking with vehicle "off"...This relieves the vacuum that develops which may inhibit the leak from showing up. Conversely, pressure in the system can act the same way, causing the leak to stop)

SOURCE: Where do you add fluid in the transfer case of 2002 silverado 5.3

You have to crawl under the truck, and on the rear cover of the transfer case, there are two plugs, one near top, and one at bottom of case. The top one is where you fill it.I had a truck like yours.

SOURCE: power steering fluid is leaking from the top

I almost got this. Does the fluid level go down ever few days with no leaking hoses,no leaking cooler if you have one and nothing coming out of the steering rack boots. It has to go somewhere. if it just comes out the cap the pump is not pulling it and sending it to the rack so you should not have much in the way of power steering. Did you put a new belt on wrong if posible and turn the pump backwards. Only other possibility is a flow blockage. Pull the return line,disable the ignition and crank engine. You should eventually pump fluid completely through the system and out the return line like it was headed back to the resevoir.

Testimonial: "Thanks, I will definately try that. I think it is probably flow blockage"

SOURCE: 1998 lincoln continental transmission problems

TRANSMISSION THERMOSTAT INSIDE TRANSMISSION ON VALVE BODY YOU HAVE A PRESSURE LEAK CHECK TRANSMISSION OIL COOLER LINES FITTING TO RADIATOR FOR LEAKS LOOK UNDER CAR WHILE IT RUNNING LOOK FOR FLUID LEAKS. YOU COULD A LEAKING TORQUE CONVERTER SEAL.

SOURCE: transmission fluid & radiator fluid

Your transmission fluid runs to your cooling system to cool the transmission oil. So, in answer to your question, one of the two transmission lines (one in, bottom and one out, top) could be leaking from the cooling system.

Bring your vehicle in for a cooling system pressure check. Another thing to keep in mind when inspecting leaks is that where you see the leak may not necessarily be where the leak is from. While the leak will drip down, the wind from when you're driving will splatter the leak all over the under-carriage of your vehicle making it look like leaks are happening where they in fact, are not.