How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask EMRSR Your Own Question

EMRSR
EMRSR, Master Certified Service Manager
Category: Ford
Satisfied Customers: 3010
Experience:  20 years with Ford, Master Certified
18136160
Type Your Ford Question Here...
EMRSR is online now
A new question is answered every 9 seconds

How to replace the heater core in a 2003 Ford Ranger?

Resolved Question:

How to replace the heater core in a 2003 Ford Ranger?
Submitted: 5 years ago.
Category: Ford
Expert:  EMRSR replied 5 years ago.

This is about a 6 hour job, and requires dropping the dash carrier.

 

Service and Repair
Notes

REMOVAL

  1. Remove the evaporator core housing. NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle.
  2. Remove the instrument panel. Refer to: Body and Frame, Interior Trim, Dashboard/Instrument Panel, Service and Repair, See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair
  3. Remove the Powertrain Control Module (PCM) .

  1. Remove the PCM heat sink.
1Remove the ground strap screw.
2Remove the heat sink.

  1. Remove the four nuts from the engine side of the dash panel. Position the plenum chamber on the vehicle floor.

  1. Remove the heater core cover.
1Remove the screws.
2Remove the heater core cover.

  1. Remove the heater core.

INSTALLATION

  1. To install, reverse the removal procedure.
    • During installation, be sure to install a new oval foam seal around the heater core inlet and outlet tubes.
Service and Repair
Notes

INSTRUMENT PANEL

REMOVAL

CAUTION: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.

  1. Remove the steering column.

  1. Remove the screws and position the parking brake release handle aside.

  1. Disconnect the brake pedal position (BPP) switch electrical connector.

  1. If equipped, disconnect the clutch pedal position (CPP) switch electrical connector.

  1. Remove the RH and LH scuff plates.
1Remove the eight screws.
2Remove the RH and LH scuff plates.

  1. Remove the LH and RH A-pillar lower trim panels.
    • Remove the pin-type retainer on the LH cowl trim panel.

  1. Remove the LH and RH windshield side garnish mouldings.

  1. Remove the instrument panel side finish panel.

  1. Disconnect the battery junction box from the bracket and position it aside.

  1. Remove the bulkhead wiring harness from inside the engine compartment.
1Loosen the bolts.
2Disconnect the electrical connectors.

  1. Remove the bulkhead connector insulator.

  1. Unclip the bulkhead electrical connectors from the dash panel.
  2. Remove the instrument panel valance panel.

  1. Disconnect the restraint control module (RCM) electrical connector.
1Release the locking tab.
2Disconnect the RCM electrical connector.
  1. Remove the passenger side air bag module.

  1. Disconnect the blend door actuator electrical connector.

  1. Disconnect the climate control vacuum harness connector.

  1. Disconnect the radio antenna cable in-line connector.

  1. Raise and secure the glove compartment.
    • Press the release tabs inward while raising the glove compartment.

  1. Disconnect the electrical connectors and the ground wires on the RH cowl panel.

  1. Remove the instrument panel defroster opening grille.

  1. Remove the instrument panel cowl top bolts.

  1. Remove the instrument panel brace bolt under the steering column.

  1. Remove the RH instrument panel cowl side bolt.

  1. Remove the LH instrument panel cowl side bolts.
  2. Position the instrument panel away from the dash panel.

  1. Disconnect the instrument panel to body harness.
1Loosen the bolt.
2Disconnect the harness.
  1. NOTE: Two technicians are required to perform this step. Remove the instrument panel.
    • If necessary, transfer the components to the new instrument panel.

INSTALLATION

CAUTION: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.

  1. NOTE: Two technicians are required to perform this step. Position the instrument panel.

  1. Connect the instrument panel to body harness.
1Connect the harness.
2Install the bolt.
  1. Align and install the instrument panel.

  1. Install the LH instrument panel cowl side bolts.

  1. Install the RH instrument panel cowl side bolt.

  1. Install the instrument panel cowl top bolts.

  1. Install the instrument panel defroster opening grille.

  1. Install the instrument panel brace bolt.

  1. Connect the electrical connectors and the ground wires on the RH cowl panel.

  1. Lower the glove compartment.
    • Press the glove compartment release tabs inward while pulling downward on the glove compartment.

  1. Connect the radio antenna cable in-line connector.

  1. Connect the climate control vacuum harness connector.

  1. Connect the blend door actuator electrical connector.
  2. Install the passenger side air bag module.

  1. Connect the RCM electrical connector.
1Install the RCM electrical connector.
2Engage the locking clip.
  1. Install the instrument panel valance panel.

  1. Position the bulkhead electrical connector handle.

  1. Connect the BPP switch electrical connector.

  1. Connect the CPP switch electrical connector.

  1. Install the bulkhead connector insulator.

  1. Install the bulkhead wiring harness connectors.
1Connect the electrical connectors.
2Install the bolts.

  1. Install the battery junction box onto the bracket.

  1. Install the LH and RH A-pillar lower trim panels.
    • Install the pin-type retainer on the LH cowl trim panel.

  1. Install the LH and RH windshield side garnish mouldings.

  1. Install the RH and LH scuff plates.
1Position the scuff plates.
2Install the eight screws.

  1. Install the instrument panel side finish panel.

  1. Install the parking brake release handle.
1Position the handle.
2Install the screws.
  1. Install the steering column
Customer: replied 5 years ago.
This is cool! Thank you. I was quoted $650 to replace the heater core. Is this a fair price?
Expert:  EMRSR replied 5 years ago.
Yes, $650 is realistic.
Expert:  EMRSR replied 5 years ago.
Please don't forget to hit accept.
Customer: replied 5 years ago.
I work on all my cars. It looks straight forward. Is there any special tools need to take out the dash or better tackle this job? Any addition tips is greatly appreciated.
Expert:  EMRSR replied 5 years ago.
Pretty much straight on stuff.
EMRSR, Master Certified Service Manager
Category: Ford
Satisfied Customers: 3010
Experience: 20 years with Ford, Master Certified
EMRSR and 7 other Ford Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
< Last | Next >
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
  • Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me. Molly USA
  • I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service. Jason V. Kirkland, WA
  • I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there. BR New Jersey
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
 
 
 

Meet The Experts:

 
 
 
  • Ron

    ASE Certified Technician

    Satisfied Customers:

    20942
    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    20942
    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)

    Ford Technician

    Satisfied Customers:

    22382
    16 years experience with Ford.
  • http://ww2.justanswer.com/uploads/JM/jmcdo28/2012-2-23_01655_resized.64x64.jpg John Mc's Avatar

    John Mc

    Ford Technician

    Satisfied Customers:

    5493
    19 years Ford Lincoln Mercury experience
  • http://ww2.justanswer.com/uploads/wmarti7/2009-4-18_04332_Avatar.jpg Chuck's Avatar

    Chuck

    ASE Certified Technician

    Satisfied Customers:

    1684
    33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    1518
    12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2014-4-1_23659_avatar.64x64.jpg Mike V.'s Avatar

    Mike V.

    Auto Service Technician

    Satisfied Customers:

    789
    25 years experience on all makes and models, Licensed NYS Inspector.
  • http://ww2.justanswer.com/uploads/lostrider/2009-9-26_23144_php4VNWAA_c1PM1.jpg lostrider's Avatar

    lostrider

    Ford Technician

    Satisfied Customers:

    2940
    ASE Master Technician, Ford Senior Master Technician,Diesel certified, ASE Master, 22 yrs FORD exp.
 
 
 
Chat Now With A Ford Mechanic
EMRSR
EMRSR
Ford Mechanic
3010 Satisfied Customers
20 years with Ford, Master Certified