I need a heater hose diagram for a 99 Ford expedition 5.4L Eddie bauer if anyone can help me I would appreciate it thanks a lot.

Question edited for clarity and add maker.
Question moved to model category.

Here is the vacuum lines diagram. I would also suggest that you clean the Throttle body, and the MAF.

https://www.google.com/search?q=2005+ford+expedition+vacuum+hose+diagram

You also need a good pro grade scan tool computer to check for other issues.

https://www.google.com/search?q=auto+electrician+near+me

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How To Install Replace Blower Motor Heater AC Fan Ford ...

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https://www.youtube.com/watch?v=zasspzTCrSo
Oct 4, 2010 - Uploaded by 1A Auto Parts
How To Install Replace Blower Motor Heater AC Fan Ford Explorer ... This procedure should be the same or similar on 95, 96, 97, 98, 99, 00, ...

normally , they are on the engine on the right side, start from the firewall on the right side , you will see 2 hoses coming from the a/c system that is connected at the firewall, 1 of them is larger than the other, they both go to the air conditioner compressor, but don't get these 2 mixed up with heater hoses, because these 2 go to the engine, and water pump.

yes very common you will have to flush it out using a garden hose with good water pressure. disconnect both hoses connect one to the hose and turn the water on keep switching to back flush it until clean water runs out of it. reconnect hoses and it will be fine.

it seems like your heater core is leaking check your hoses that go into the firewall for leaks if they arnt leaking then your heater core is leaking and needs to be replaced

you will also need a bypass modual for the antitheft on this PKU-F2

the heater is a long plastic box and the mixer door is inside of the box. The stepping motor controls the door.

the heater bypass is quite simple, if you look at the firewall you will see two medium sized coolant lines, remove them from the firewall and link them together using a proper sized tube, you can purchase a kit at a parts store quite cheaply

There are four o2 sensors on this truck. one on each side just below the exhaust manifold, and one on each side behind the second catalytic converters. (just about even with the back of the front doors.

bad battery with dead cell
dead cells wont be seen on battery test
or alternator not functioning properly
you left your lights on somewhere in vehicle or connected to this a defective door switch when doors closed leaves lights on