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Got a 1995 mustang with 3.8 v6 need to know where heater hoses go to from firewall to engine!maybe a diagram would help

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One goes to waterpump other one goes to intake . more than likely one hose will be longer than the other.

Posted on Nov 12, 2010


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A diagram of the drain hose next to firewall on 2008 mustang v6 may be stopped up help !!

1 Possible plugged 'Fresh Air' (Below cowl panel) water drain
2 Possible HVAC Evap Drain plugged or hose 'disconected' from Evap housing
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Oct 11, 2014 | 2008 Ford Mustang

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Cooling system diagram 3.5 l v6 jackaroo

Sounds like those are the heater core hoses. some cars have the A/C hooked to those hoses also. Trace the hoses and see where they they go on the engine. You might be able to take one hose and bypass the heater core by taking off one hose off the firewall and putting it where the opposite one goes on the moter. If not you can take them off the firewall and get a metal pipe and join them together. Hope this helps.

May 18, 2013 | Cars & Trucks

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Heater core

There's two hoses that run from the front of the engine to the firewall; those tubes sticking out through the firewall are your heater core connections. You'll have to pull the dash out to access the heater core for replacement; once you get the dash out you should be able to figure the rest out.

Aug 02, 2012 | 1989 Ford Mustang

1 Answer

My 1995 F250 is leaking radiator fluid under the engine behind the fan

Is antifreeze coming from "weep" hole in bottom of case under shaft nose?
is it coming from the heater hose (small hose coming of side and going into firewall to heater core inside engine compartment?
is it coming from bad gasket between pump and front case?

get a paper towel and dry these areas then start engine. when it starts leaking that will tell you if you need to change the water pump (gasket leak or weep hole shaftseal leak) or if you just need to replace/repair heater hose.

Apr 09, 2012 | 1995 Ford F250

1 Answer

Need to locate heater core need diagram

There are 2 rubber hoses that get hot when the engine is running. They come from the engine and connect to the heater core at the firewall The hose is about 3/4 inch in diameter and is hot to the touch after the engine is up to operating temperature.

Jul 17, 2011 | 2000 Pontiac Bonneville

2 Answers

Can i bypass the heater core?

Yes. You would need to join both hoses from the firewall into a loop to circulate the water back into the engine. You will need to measure the hose sizes and make a connector. You will need to clamp the hoses to the connector.

If you use copper tubing, you should flare the ends to insure a good seal.

May 09, 2010 | 1995 Ford Escort

1 Answer

I need to replace my heater core on my 1995 Ford Ranger

Removal & Installation
Exploded view of the blower motor housing and the heater air plenum assemblies

  1. Disconnect the negative battery cable. Allow the engine to cool down. Drain the cooling system to a level below the heater core fittings on the firewall.
  2. Disconnect the heater hoses from the heater core tubes and plug hoses.
  3. Remove the five nuts that secure the blower motor housing to the firewall.
  4. Pull the housing away from the firewall. Disconnect any wire harness plugs which inhibit the housing.
  5. Remove the remaining nuts which secure the heater air plenum (inside the passenger compartment) to the firewall.
  6. In the passenger compartment, remove the instrument panel. Refer to Section 10.
  7. Pull the heater air plenum rearward from the firewall and remove it from the vehicle.
  8. Remove the heater core from the heater air plenum.
  9. Inspect all air seals on the components and firewall and replace any that are damaged.

  1. To install:
  2. Install the heater core into the air plenum chamber.
  3. Position the heater air plenum against the firewall from the passenger compartment.
  4. Under the hood, install the plenum retaining nuts.
  5. Install the blower motor housing to the firewall and install the attaching nuts.
  6. Connect the heater hoses to the heater core tubes at the dash panel in the engine compartment. Do not over-tighten the hose clamps.
  7. Install the instrument panel.
  8. Check the coolant level and add coolant as required. Connect the negative battery cable.
  9. Start the engine and check the system for coolant leaks.

Oct 18, 2009 | 1995 Ford Ranger Supercab

2 Answers

I need to know where my heater core hoses run into the firewall on my 1996 pontiac grand am with the v6 and auto transmission

should be two rubber hoses that connect onto two brass tubes coming out of the firewall inside of the engine compartment near the passenger side of the vehicle. Follow from front part of the engine to where they connect onto the brass tubes. Those should be your heater hoses.

Sep 08, 2009 | 1996 Pontiac Grand Am

1 Answer


the intake hasto come off unles you have tiny hands, see photos and files

Feb 26, 2009 | 1995 Nissan Quest

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