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Posted on Jan 12, 2011
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How do I replace my heater core on a 1988 my Ford f250

1 Answer

Anonymous

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  • Expert 157 Answers
  • Posted on Jan 12, 2011
Anonymous
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Joined: Jan 07, 2011
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Hello there, here are steps to help you through:

  • Disconnect the negative battery cable.
  • After making sure the engine is cool, drain the coolant from the radiator into a suitable container for recycling. It is always good practice to replace the coolant with fresh coolant after replacing the heater core. The old coolant will contain corrosives and contaminants that will accelerate deterioation of the new core if you reuse it.
  • Disconnect the heater hoses from the heater core connector pipes on the engine side of the firewall.
  • Working in the passenger compartment, remove the glove box for better access.
  • Still working in the passenger compartment, remove the seven screws that attach the heater core cover to the plenum assembly (the plenum assembly is the protective housing into which the heater core is mounted.)
  • Disconnect the vacuum source but leave the vacuum harness attached to the plenum cover.
  • Remove the plenum cover.
  • Remove the heater core from the plenum chamber.
  • Reverse the procedure to install the new heater core.
  • Make sure the radiator drain plug is closed, that the heater hoses are properly tightened.
  • Make sure the new coolant is properly mixed with an equal amount of clean water (distilled water recommended) to produce a 50/50 coolant/water mixture.
  • Fill the radiator with the proper type and amount of fresh 50/50 coolant..
  • Start the engine and check for leaks.
  • Check the coolant level after driving the first few miles and top off the coolant level (after engine cools).
Hope I could be of help. Best of luck

5 Related Answers

Anonymous

  • 152 Answers
  • Posted on Jan 08, 2009

SOURCE: remove the heater core in 1988 F250 pick-up

here is a link that should be of some help.
http://www.autozone.com/addVehicleId,1071703/initialAction,repairGuide/shopping/repairGuide.htm?pageId=0900c152801cd90e

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Anonymous

  • 16 Answers
  • Posted on Dec 06, 2008

SOURCE: Replace Heater Core 1988 Ford Crown

Try here its free. http://www.autozone.com/shopping/repairGuide.htm

hope this helps

Anonymous

  • 2 Answers
  • Posted on Feb 17, 2009

SOURCE: need to replace heater core in 1988 Ford Crown

i too replaced the heater core on my 1988 ford cv. the important point to rember is not to get overwhelmed. i ended up removing the whole dash, but not the stearingwheel. lable everything you remove....best to keep all parts seperated. mine looked like a nascar when i finaly got to the black plastic box where the core lives. i had to also remove some of the heating duct. once you open the box up, youll see the core. just sits in there. remove in and out hoses. very simple, but alot of work, thats why you must keep track of everything you remove. your engine coolant may be low, so add more when compleated. its been about 4 years now since i replaced mine.....i dont rember if the black box was rivited togeather or screwed togeather. if rivited, get a dremel tool with a grinder wheel, this will remove the rivites in good time. but the duct work was stapled togeather, i used 1/4 inch sheet metal screws to hook back up, works just fine.

MikeRenee

  • 69 Answers
  • Posted on Mar 29, 2009

SOURCE: Replace heater core in 1988 Ford Ranger

allow the system to cool down

take radiator cap loose to release pressure

once pressure is released tighten cap

loosen clamps on the heater hoses in the engine compartment on the pass. side of firewall.

plug or cap off the heater core tubes to prevent spillage when you pull it into the truck

place a trash bag on floorboard in case spillage occurs

remove the five screws holding the heatre core access cover, three on top and two on bottom

carefully pull heater core back and down and remove it from the dash

install is reverse

Hope this helps

Anonymous

  • 1 Answer
  • Posted on Dec 10, 2009

SOURCE: i replaced heater core on my 1995 ford pickup f250

how do I change the heater core on my 1992 ford ranger
it had a short and cot on fire, put out and drove off, need to replace

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Remove the glove-box door. Behind that is the heater core cover on the interior, passenger side of the firewall. Remove that cover and there is the heater core. Open the hood and look where the heater hoses enter the front right passenger area of the exterior side of the firewall. Disconnect the two heater hose clamps and you can then remove the heater core.
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allow the system to cool down

take radiator cap loose to release pressure

once pressure is released tighten cap

loosen clamps on the heater hoses in the engine compartment on the pass. side of firewall.

plug or cap off the heater core tubes to prevent spillage when you pull it into the truck

place a trash bag on floorboard in case spillage occurs

remove the five screws holding the heatre core access cover, three on top and two on bottom

carefully pull heater core back and down and remove it from the dash

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Heater Core Removal
  1. Allow the engine to cool. Observe the safety precautions in Section 03-03 .
  1. Place a thick cloth over the radiator cap. Turn the cap slowly to its first stop to release system pressure. When the pressure has been released, tighten the radiator cap.
  1. Disconnect the heater water hoses (18472) from the heater core (18476). Plug the hoses.
  1. Remove the glove compartment.
  1. From inside the passenger compartment, remove the seven screws that attach the heater core cover (18B300) to the heater air plenum chamber (18471).
  1. Disconnect the vacuum source. Leave the A/C plenum vacuum harness (18C581) attached to the heater core cover. Remove the heater core cover.
  1. Remove the heater core from the heater air plenum chamber.
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