97 ford f150 4.6 the pipe that gos to heater core hose is leaking. is this pipe pressed in? thanks

The 2 pipes that are coming through the firewall is your heater core. Simply put one hose on and the other hose to the other pipe. You can run water through the heater core either way. After you install the hoses, put a hose clamp on each one so the hoses don't fall off the pipes.

The whole heater core has to be replaced.An easy check is to bypass the heater core by connecting the in/out hoses to the heater core

it appears the hoses to the heater core are not clamped seal properly

That hose is connected to your heater core. Either the hose or the actual heater core is leaking and needs to be replaced.

The metal hose by the firewall is either your heater core inlet pipe or outlet pipe. These inlet and outlet pipes will develop leaks for a varity of reasons. If this is the source of your leak, you may want to replace the entire heater core which is much easier than trying to fix the leak. The attached link will help you.

http://www.allpar.com/fix/heat.html

http://www.thirdgen.org/heatercore

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if it is just the rubber hose going in, the rubber hose can be replaced. if the aluminum tube coming out of the firewall is leaking, it it part of the heater core, and the whole core will need to be replaced. good luck!

ford courier workhorse ,great van ---right when engine is hot feel the hoses that run into the heater ,also it could be the heater core was leaking and someone has joined the hoses together .if the hoses are connected and they are hot then ,try removing them and then flushing the heater with a hose pipe

Easiest way to bypass a heater core is to disconnect both inlet and outlet hoses at the engine firewall. Install a right angle hose coupling in each hose. Then install a straight piece of hose to connect the two hoses.

it should not be pressed in and can be easily removed thru firewall on passenger side

1. Drain the engine coolant into a suitable container.
2. Open the instrument panel glove compartment. Push in on the sides of the compartment to release it, allowing access to the heater core.

The heater core can be damaged if too much force is applied to the heater core pipes during hose removal.

1. Remove the heater module screws and remove the heater module assembly cover. For vehicles equipped with A/C, remove the air conditioning evaporator temperature sensor assembly from the heater and A/C cover.
2. Remove the heater core screw and clamp.
3. Remove the hose pipe clamp screw and the hose pipe clamp. Clamp off the heater hoses.

Fig. 1: Heater hose and pipe routing-3.4L engine Fig. 2: Heater hose and pipe routing-3.8L engine Fig. 3: Heater hose and pipe routing-5.7L engine

1. Disconnect the heater hoses from the pipes.
2. Remove the heater core by carefully pulling it towards you.

Fig. 4: Exploded view of the heater core removed from the heater module assemblyTo install:

1. Install the heater core and attach the heater hose assembly to the heater hose pipes. Note the following:
   1. Lubricate the heater core pipes with petroleum jelly for ease of installation and to assure a good seal.
   2. Be sure the seals around the heater pipes remain in place when installing.
   3. To verify that the seal is installed correctly, observe the seal from inside the engine compartment. If the seal has leaks, apply a sealer between the heater core pipes and the evaporator housing.
2. Install the hose pipe clamp and the bolt/screw. Unclamp the heater hoses. Tighten the hose pipe clamp bolt/screw to 16 inch lbs. (1.8 Nm).
3. Install the heater core clamp and screw. Tighten the screw to 16 inch lbs. (1.8 Nm).
4. Install the heater module assembly cover and secure with the retaining screws. Tighten the screws to 18 inch lbs. (2 Nm).
5. Connect the negative battery cable.
6. Refill the cooling system. Operate the engine and check for leaks, add coolant if necessary.
7. Install the instrument panel glove compartment.