How do I Remove the heater hose from the rear of the engine on a 1998 Ford Expediton?

The ICM is located at the rear of the Throttle control body. Look for where your plastic hose from your air breather connects to the engine at. Remove the plastic hose at the engine and at the rear of the round metal part the you removed the hose from, closest to the firewall or the back side will be the ICM

This is usually because of a bad fan resistor control. Track the wires under the hood from the blower fan to a part stuck in the underhood ductwork shell. This part can sometimes be reactivated by tapping on it with a broom handle. Just look for a part with 2 bolts and 1 plug-in harness.

If you are not successful in reactivating your part, you will have to replace it. One thing good about checking this is that you can remove the wires from the old part and plug in the new part before making any other changes. If it now works, proceed to installing the new part.

Sometimes a water hose is in the way at the rear of the engine. Do it this way. Cold engine. Remove attaching bolts and wires. Have new part in reach for 1 handed swap. Loosen heater water hose clamp and prepare to remove end of hose. Pull hose off engine, pinch and hold hose with 1 hand, change resistor with other hand and leave new part loose in ductwork. Replace hose to engine.

Because you did this on a cold engine, a vacuum lock should keep the water from rushing out of the heater hose that you pinched and held.

95 Lincoln town car coolant leak under intake SOLUTION EASY

Ok this is a 4" piece of hose leaking on a tube that runs under the intake manifold and fastens to the rear of the engine with 2 small bolts that are very hard to get to. The heater core hooks up to this tube with a 5/8 hose that's 3/4 on the other end going into the heatrer core.
Solution:
remove alternator
see clamp on hose?
remove it.
If you can't remove it, clamp vice grips on it and take a steak knife and cut through the hose towards the rear of the engine. Now with large screw driver pry the hose and clamp off the nub on the rear of the water pump housing. You may have to move the tube and remaining hose out of the way first. Just stick your hands in there and force it out of the way. Now you have a clean nub to hook a 5/8 bypass hose to. Here's where you get it. Go back to the heater core and and remove the hose that connects to this tube that runs under the intake. Just cut it where it hooks to the tube and remove it carefully from the heater core because this is now your needed bypass hose. Now with a couple feet of 3/4 hose and a coupler you have all you need to reroute this water outlet around the engine to the heater core. Take your hose you cut from the other end of the tube and removed from the heater core and and fasten it to the nub on water pump housing use new screw type stainless Steel clamps. You have to take this one apart to put it on. Stick a 3/4 coupler into the other end and route a long section of 3/4 hose under alternator to the heater core using SS clamps where needed. job done... Just leave the old tube where it is under the intake manifold......Thank you Very Much

SECTION 412-02: Heating/Defrosting 1998 Explorer/Mountaineer Workshop Manual REMOVAL AND INSTALLATION Heater Core Removal

1. NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle. For additional information, refer to Section 412-00 .
   Drain the radiator. For additional information, refer to Section 303-03 .

1. Remove the heater water hoses.
   1. Squeeze the clamps and pull the hoses off.
   1. Disconnect the vacuum hose from the water control valve.

1. Remove the instrument panel. For additional information, refer to Section 501-12 .

1. Remove the A/C evaporator core housing. For additional information, refer to Section 412-03 .

1. Remove the A/C evaporator core housing. For additional information, refer to Section 412-03 .

1. Remove the powertrain control module (PCM). For additional information, refer to Section 303-14 .

1. Remove the PCM heat sink.
   1. Remove the ground strap screw.
   1. Remove the heat sink.

1. Remove the heater air plenum nuts from the engine side of the dash panel.

1. Remove the heater core.
   1. Remove the heater core cover to air plenum screws.
   1. Lift off the cover.

1. Remove the heater core (18476).

For A 1996 Windstar:
1. Disconnect Battery Ground Cable.
2. Drain Engine Coolant System.
3.Remove Cowl Top Vent Panel For Clearance.
4.Disconnect Heater Water Hoses From Heater Core Inlet And Outlet Tubes In The Engine Compartment.
5.Remove Ground Strap Attatchment (If Present) From Heater Core Tube.
6.Remove Cassete Box.Center Instrument Panel Support Trim.
7.Pull Out And Remove Cup Holder.
8.Remove Rear Seat Air Flow.
9.Disconnect Keyless Entry Wiring Harness, If Equipped.
10.Remove Center Instrument Panel Support Brackets.
11.Disconnect Climate Control Vaccum Line Connector.
12.Remove Heater Floor Duct.
13.Remove Heater Core Cover Retaining Screws and Remove Heater Core Cover.
14.Remove Heater Core.
15.To Install, Reverse Removal Procedure.

at the bottem on the left or the side there is a small key like screw ( righty tighty lefty lucy } then u must remove the radiator cap and also remove the themastate be sure to attach the therma housing and hose and unatch it at the top of the radiator the put water hose in the open cap area and flush for 20 mins turn on engine and let run for 2 min and repeat flushing untill all antifrez desapears. be sure to put every back tack pitchures as you remove so to put back the same way it might be good to get new thermastate

First disconnect steering knucke under dash. Remove dash assembly to reveal heater/AC case. Disconnect heater hoses from engine compartment. Discharge and capture AC refrigerant. Remove heater case ,replace heater core . re-assemble .

follow the two rubber hoses from the firewall to where they connect to the motor. disconnect them and flush through both of them. whichever one you start with first dont point the empty hose at you becuz the water will be coming out of it.

follow the large hose from the top of the radiator to where it claps to the engine. unclamp it, remove the nipple it was clamped to and there will be the thermostat

sounds like a vacuum leak check the hose for the pcv valve they commonly get eaten away by oil and cause a large vacuum leak

well check heater hose connections to heater core and try to get back in there to see if it is comming from the intake but if the leak is low it is possibly a freeze plug or exspansion plug in the back of the moter if so youll have to seperate the motor and trans to fix prob.