Question about 2001 Ford Windstar

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Removal of bypass tube for heater core.

I have removed the hoses from the tube. but am unable to remove the tube itself. i have removed the bolt that holds it in place as well. please help.

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  • ketola Jan 25, 2009

    thank you much... after i gotten the actual part to replace the tube, i then realized that there was another bolt... only after hours of trying to remove the tube. the fun part after that was trying to get the tube out of the engine compartment. all good now though. again thanks for the responding.

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Is this the bypass tube that comes from the water pump?if so it has 2 bolts .. one on the water pump and one identical bolt, hidden on the tube bracket.

Posted on Jan 24, 2009

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How do I bypass the rear auxiliary heater core?


U must connect the coolant in hose to the coolant out hose with a u type metal hose by passing the heater core all together

Sep 13, 2014 | 2003 GMC Envoy

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Coolant line under intake is leaking 95 town car


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

Feb 14, 2012 | 1999 Lincoln Town Car

1 Answer

Water leaking out of overflow from heater core.


If coolant is leaking from the heater core into the interior or through a weep hole out of the car your heater core has sprung a leak.
Most vehicles have easily accessible heater cores, only requiring removal of a panel under the dash or hood to gain access. On the '97 Skylark it's accessible under the dash.
  • Disconnect the negative battery cable.
  • Drain and recycle the engine coolant.
  • Raise and safely support the front of the vehicle.
  • Detach the drain tube, then disconnect the heater hoses from the core tubes.
  • Carefully lower the vehicle.
  • Remove the console if equipped.
  • Unfasten and remove the sound insulators, console extensions and/or steering column filler, as required.
  • Remove the floor or console outlet ductwork and hoses.
  • Remove the heater core access cover.
  • Unfasten the heater core mounting clamps/bolts, then extract the heater core from the vehicle.


To install:
  • Install the heater core, then secure using the clamps/bolts.
  • Fasten the heater core cover.
  • Connect the outlet hoses and ducts.
  • Install the sound insulators, console extensions and/or steering column filler.
  • Raise and safely support the vehicle.
  • Install the drain tube and connect the heater hoses to the core tubes.
  • Carefully lower the vehicle.
  • Connect the negative battery cable.
  • Fill cooling system and check for leaks. Start the engine and allow to come to normal operating temperature. Recheck for leaks and check coolant level. Add if necessary.

Feb 28, 2011 | 1997 Buick Skylark

1 Answer

No heat, and I want to replace the heating core, need directions


Heater Core REMOVAL & INSTALLATION CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old. Front 1988-91 R/V SERIES WITHOUT AIR CONDITIONING
  1. Disconnect the negative battery cable.
  2. Disconnect the heater hoses at the core tubes and drain the engine coolant. Plug the core tubes to prevent spillage.
  3. Remove the nuts from the distributor air ducts in the engine compartment.
  4. Remove the glove compartment and door.
  5. Disconnect the air-defrost and temperature door cables.
  6. Remove the floor outlet and unfasten the defroster duct-to-heater distributor screw.
  7. Remove the heater distributor-to-instrument panel screws. Pull the assembly rearward to gain access to the wiring harness and disconnect the wires attached to the unit.
  8. Remove the heater distributor from the truck.
  9. Remove the heater core retaining straps and remove the core from the truck. To install:
  10. Install the heater core. Be sure that the case-to-core and case-to-dash panel sealer is intact.
  11. Position the heater distributor. Connect the wires attached to it and then install the heater distributor-to-instrument panel screws.
  12. Install the floor outlet and tighten the defroster duct-to-heater distributor screw.
  13. Connect the air-defrost and temperature door cables.
  14. Install the glove compartment and door.
  15. Install the nuts into the distributor air ducts (in the engine compartment).
  16. Connect the heater hoses at the core tubes.
  17. Connect the negative battery cable. Fill the cooling system and check for leaks.
1988-91 R/V SERIES WITH AIR CONDITIONING
  1. Disconnect the negative battery cable.
  2. Disconnect the heater hoses at the core tubes and drain the engine coolant. Plug the core tubes to prevent spillage.
  3. Remove the glove compartment and door.
  4. Disconnect the center duct from the defroster outlet duct.
  5. Disconnect the center, lower air distributor and the center air outlet ducts.
  6. Disconnect the temperature door cable.
  7. Remove the nuts from the 3 selector duct studs that project into the engine compartment.
  8. Remove the outlet duct-to-instrument panel screws. Pull the assembly rearward to gain access to the wiring harness and disconnect the wires and vacuum tubes attached to the unit.
  9. Remove the heater distributor from the truck.
  10. Remove the heater core retaining straps and remove the core from the case. To install:
  11. Install the heater core. Be sure that the core-to-core and case-to-dash panel sealer is intact.
  12. Position the heater distributor. Connect the wires attached to it and then install the heater distributor-to-instrument panel screws.
  13. Install the floor outlet and tighten the defroster duct-to-heater distributor screw.
  14. Connect the temperature door cable.
  15. Connect the center and lower air distributors and the center air outlet ducts.
  16. Connect the center duct to the defroster outlet duct.
  17. Install the glove compartment and door.
  18. Connect the heater hoses at the core tubes.
  19. Connect the negative battery cable. Fill the cooling system and check for leaks.
1988-90 C/K SERIES
  1. Disconnect the negative battery cable.
  2. Remove the coolant overflow bottle.
  3. Drain the cooling system.
  4. Disconnect the heater hoses at the core tubes.
  5. In the engine compartment, remove the heater case-to-firewall screws.
  6. Disconnect the antenna cable at the mast.
  7. Remove the glove box.
  8. Disconnect the wiring harness at the engine's Electronic Control Module (ECM).
  9. Remove the ECM and bracket.
  10. Remove the right side kick panel.
  11. Remove the right side lower dash panel bolt and nut.
  12. Remove the heater case mounting bolts.
  13. While lifting the instrument panel slightly, remove the case assembly.
  14. Lift the core from the case. To install:
  15. Lower the core into the case.
  16. Position the case assembly against the firewall.
  17. Install the heater case mounting bolts.
  18. Install the right side lower dash panel bolt and nut.
  19. Install the right side kick panel.
  20. Install the ECM and bracket.
  21. Connect the ECM wiring harness.
  22. Install the glove box.
  23. Connect the antenna cable at the mast.
  24. Install the heater case-to-firewall screws.
  25. Connect the heater hoses at the core tubes.
  26. Fill the cooling system.
  27. Install the coolant overflow bottle.
  28. Connect the battery cable.
1991-92 R/V AND 1991-98 C/K SERIES
  1. Disconnect the negative battery cable.
  2. Drain the cooling system.
  3. Remove the instrument panel glove compartment.
  4. Tag and unplug all electrical leads as necessary.
  5. Remove the center air distribution duct from the floor.
  6. If necessary, remove the ECM and mounting tray.
  7. Remove the hinge pillar trim panels.
  8. Remove the blower motor cover and then remove the motor.
  9. Remove the steering wheel and tilt back the instrument panel slightly.
  10. Remove the coolant overflow tank. Disengage the heater hoses at the core connections.
  11. Unfasten the attaching screws and nut and then remove the heater case.
  12. Remove the seven screws and lift off the heater case cover.
  13. Remove the fasteners and brackets that hold the heater core to the case and lift the core from the case. To install:
  14. Install the heater core in the case.
  15. Install the heater case bottom plate. Make sure there is a good seal.
  16. Install the heater case into the truck. Tighten the 4 lower screws to 17 inch lbs. (2 Nm); the upper screw to 97 inch lbs. (11 Nm); and the nuts to 25 inch lbs. (2.8 Nm).
  17. Connect the heater hoses at the core tubes.
  18. Install the coolant overflow tank.
  19. Install the instrument panel and the steering wheel.
  20. Install the blower motor and cover.
  21. Install the trim panels and if removed, the ECM. Install the air distribution duct and reconnect all electrical leads.
  22. Install the glove compartment. Fill the cooling system and connect the battery cable.
Rear 1988-91 MODELS
  1. Disconnect the negative battery cable.
  2. Drain the cooling system.
  3. Disconnect the heater hoses at the core tubes.
  4. Disconnect the blower motor wiring harness.
  5. Remove the blower motor clamp.
  6. Remove the motor attaching screws and lift out the motor.
  7. Unfasten the upper-to-lower case half screws and remove the upper case half.
  8. Remove the core seal.
  9. Lift out the core. To install:
  10. Install the heater core.
  11. Install the core seal.
  12. Install the upper case half and then tighten the upper-to-lower case half screws.
  13. Install the motor and then tighten the attaching screws.
  14. Install the blower motor clamp.
  15. Connect the blower motor wiring harness.
  16. Connect the heater hoses at the core tubes.
  17. Fill the cooling system.
  18. Connect the negative battery cable.
1992-98 MODELS
  1. Disconnect the negative battery cable and drain the engine coolant.
  2. Remove the right rear quarter panel trim and then remove the panel itself.
  3. Remove the right rear wheelhousing liner.
  4. Disconnect the heater hoses from the core.
  5. Unplug the electrical lead. Remove the drain valve.
  6. Remove the heater module.
  7. If necessary, remove the blower motor.
  8. Remove the heater case cover.
  9. Remove the heater case cover and then remove the heater core. To install:
  10. Install the heater core and then install the heater case cover.
  11. If removed, install the blower motor.
  12. Remove the heater module.
  13. Attach the electrical lead. Install the drain valve.
  14. Connect the heater hoses to the core.
  15. Install the right rear wheelhousing liner.
  16. Install the right rear quarter panel and then install the trim.
  17. Connect the negative battery cable and fill the engine with coolant.
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Dec 10, 2010 | 1995 Chevrolet Tahoe

1 Answer

Can someone help me? am traying to change tha wather pump but want some instructions like what to do first,where the pump is located, and so... thanks!!


5.2L and 5.9L Engines
See Figure 6
  1. Disconnect the negative battery cable.
  2. Open the radiator valve and drain the cooling system.
  3. Remove the cooling fan and shroud as an assembly.
  4. Remove the accessory drive belt.
  5. Remove the water pump pulley from the hub.
  6. Disconnect the hoses from the water pump.
  7. Loosen the heater hose coolant return tube mounting bolt and nut and remove the tube. Discard the O-ring.

3833dec.jpg

Fig. Fig. 6: Water pump mounting bolt locations
  1. Remove the water pump mounting bolts.
  2. Loosen the clamp at the water pump end of the bypass hose. Slip the bypass hose from the water pump while removing the pump from the engine. Discard the gasket.

To install:
  1. Clean all gasket mating surfaces.
  2. Guide the water pump and new gasket into position while connecting the bypass hose to the pump. Tighten the water pump bolts to 30 ft. lbs. (40 Nm).
  3. Install the bypass hose clamp.
  4. Spin the water pump to ensure the pump impeller does not rub against the timing chain cover.
  5. Coat a new O-ring with coolant and install it to the heater hose coolant return tube.
  6. Install the coolant return tube to the engine. Ensure the slot in the tube bracket is bottomed to the mounting bolt. This will properly position the return tube.
  7. Connect the radiator hose to the water pump.
  8. Connect the heater hose and clamp to the return tube.
  9. Install the water pump pulley and tighten the bolts to 20 ft. lbs. (27 Nm).
  10. Install the accessory drive belt.
  11. Install the cooling fan and shroud.
  12. Fill the cooling system.
  13. Connect the negative battery cable.
  14. Start the engine and check for leaks.


Hope helps.

Aug 19, 2010 | 1994 Jeep Grand Cherokee

1 Answer

How to uninstall heater core from 2002 camaro


Drain the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
Remove the heater hoses..
Remove the heater core tube clamp bolt.
Remove the heater core tube clamp.
Remove the heater core shroud seal.
Remove the heater rear case bolts (Remove the heater rear case.
Slide the heater rear case downward in order to disengage the upper case clip.
Remove the heater rear case.
Remove the instrument panel (IP) compartment door. Refer to Door Replacement - Instrument Panel (I/P) Compartment .
Remove the heater core clamp bolt
Remove the heater core clamp.
Remove the heater core

Feb 25, 2010 | 2002 Chevrolet Camaro

1 Answer

Replace heater core in 1994 pontiac grand am


Removal & Installation


  1. Disconnect the negative battery cable.
  2. Drain and recycle the engine coolant.
  3. Raise and safely support the front of the vehicle.
  4. If necessary, remove the rear lateral transaxle strut mount.
  5. Detach the drain tube, then disconnect the heater hoses from the core tubes.
  6. Carefully lower the vehicle.
  7. Remove the console if equipped.
  8. Unfasten and remove the sound insulators, console extensions and/or steering column filler, as required.
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Unfasten the sound insulator retaining bolts ...

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... then remove the sound insulator

  1. On some models it may be necessary to remove the steering column opening filler.
  2. Remove the floor or console outlet ductwork and hoses.
  3. Remove the heater core access cover.
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Remove the heater core access cover

Unfasten the heater core mounting clamps/bolts, then extract the heater core from the vehicle.

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Unfasten the heater core retaining bolts; most later models are secured with clamps.

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Remove the heater core from the vehicle

To install:
  1. Install the heater core, then secure using the clamps/bolts.
  2. Fasten the heater core cover.
  3. Connect the outlet hoses and ducts.
  4. Install the sound insulators, console extensions and/or steering column filler.
  5. Raise and safely support the vehicle.
  6. Install the drain tube and connect the heater hoses to the core tubes.
  7. If removed, install the rear lateral transaxle strut mount, if removed.
  8. Carefully lower the vehicle.
  9. Connect the negative battery cable.
  10. Fill cooling system and check for leaks. Start the engine and allow to come to normal operating temperature. Recheck for leaks and check coolant level. Add if necessary.

Nov 13, 2009 | 1994 Pontiac Grand Am

1 Answer

I need instructions on how to replace a heater core in 1994 Grand am


Removal & Installation
  1. Disconnect the negative battery cable.
  2. Drain and recycle the engine coolant.
  3. Raise and safely support the front of the vehicle.
  4. If necessary, remove the rear lateral transaxle strut mount.
  5. Detach the drain tube, then disconnect the heater hoses from the core tubes.
  6. Carefully lower the vehicle.
  7. Remove the console if equipped.
  8. Unfasten and remove the sound insulators, console extensions and/or steering column filler, as required.
  9. On some models it may be necessary to remove the steering column opening filler.
  10. Remove the floor or console outlet ductwork and hoses.
  11. Remove the heater core access cover.
  12. Unfasten the heater core mounting clamps/bolts, then extract the heater core from the vehicle
To install:
  1. Install the heater core, then secure using the clamps/bolts.
  2. Fasten the heater core cover.
  3. Connect the outlet hoses and ducts.
  4. Install the sound insulators, console extensions and/or steering column filler.
  5. Raise and safely support the vehicle.
  6. Install the drain tube and connect the heater hoses to the core tubes.
  7. If removed, install the rear lateral transaxle strut mount, if removed.
  8. Carefully lower the vehicle.
  9. Connect the negative battery cable.
  10. Fill cooling system and check for leaks. Start the engine and allow to come to normal operating temperature. Recheck for leaks and check coolant level. Add if necessary.
If your good with tools, this should take about 3 hours to do from start to finish. Good luck and keep me posted.

Nov 04, 2009 | 1994 Pontiac Grand Am

1 Answer

Need to locate access panel to replace HeaterCore 1990 Buick Skyl


  1. Disconnect the negative battery cable.
  2. Drain and recycle the engine coolant.
  3. Raise and safely support the front of the vehicle.
  4. If necessary, remove the rear lateral transaxle strut mount.
  5. Detach the drain tube, then disconnect the heater hoses from the core tubes.
  6. Carefully lower the vehicle.
  7. Remove the console if equipped.
  8. Unfasten and remove the sound insulators, console extensions and/or steering column filler, as required.
0900c152800a93fc.jpgFig. 1: Unfasten the sound insulator retaining bolts ... 0900c152800a93fd.jpgFig. 2: ... then remove the sound insulator
  1. On some models it may be necessary to remove the steering column opening filler.
  2. Remove the floor or console outlet ductwork and hoses.
  3. Remove the heater core access cover.
0900c152800a93fe.jpgFig. 3: Remove the heater core access cover
  1. Unfasten the heater core mounting clamps/bolts, then extract the heater core from the vehicle.
0900c152800a93ff.jpgFig. 4: Unfasten the heater core retaining bolts; most later models are secured with clamps 0900c152800a9400.jpgFig. 5: Remove the heater core from the vehicleTo install:
  1. Install the heater core, then secure using the clamps/bolts.
  2. Fasten the heater core cover.
  3. Connect the outlet hoses and ducts.
  4. Install the sound insulators, console extensions and/or steering column filler.
  5. Raise and safely support the vehicle.
  6. Install the drain tube and connect the heater hoses to the core tubes.
  7. If removed, install the rear lateral transaxle strut mount, if removed.
  8. Carefully lower the vehicle.
  9. Connect the negative battery cable.
  10. Fill cooling system and check for leaks. Start the engine and allow to come to normal operating temperature. Recheck for leaks and check coolant

Dec 06, 2008 | 1990 Buick Skylark

1 Answer

Replacing a heater core in a 1994 olds. achieva.


  1. Disconnect the negative battery cable.
  2. Drain and recycle the engine coolant.
  3. Raise and safely support the front of the vehicle.
  4. If necessary, remove the rear lateral transaxle strut mount.
  5. Detach the drain tube, then disconnect the heater hoses from the core tubes.
  6. Carefully lower the vehicle.
  7. Remove the console if equipped.
  8. Unfasten and remove the sound insulators, console extensions and/or steering column filler, as required.
0900c152800a93fc.jpgFig. 1: Unfasten the sound insulator retaining bolts ... 0900c152800a93fd.jpgFig. 2: ... then remove the sound insulator
  1. On some models it may be necessary to remove the steering column opening filler.
  2. Remove the floor or console outlet ductwork and hoses.
  3. Remove the heater core access cover.
0900c152800a93fe.jpgFig. 3: Remove the heater core access cover
  1. Unfasten the heater core mounting clamps/bolts, then extract the heater core from the vehicle.
0900c152800a93ff.jpgFig. 4: Unfasten the heater core retaining bolts; most later models are secured with clamps 0900c152800a9400.jpgFig. 5: Remove the heater core from the vehicleTo install:
  1. Install the heater core, then secure using the clamps/bolts.
  2. Fasten the heater core cover.
  3. Connect the outlet hoses and ducts.
  4. Install the sound insulators, console extensions and/or steering column filler.
  5. Raise and safely support the vehicle.
  6. Install the drain tube and connect the heater hoses to the core tubes.
  7. If removed, install the rear lateral transaxle strut mount, if removed.
  8. Carefully lower the vehicle.
  9. Connect the negative battery cable.
  10. Fill cooling system and check for leaks. Start the engine and allow to come to normal operating temperature. Recheck for leaks and check coolant level. Add if necessary.6d0c523.jpg182943c.jpg164cdd5.jpg8032c04.jpg18be863.jpg

Oct 21, 2008 | 1994 Oldsmobile Achieva Special Edition

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