Heater core replacement

1996 FORD F-350
312,000 MILES • 7.3L • 6 CYL • TURBO • AUTOMATIC
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JJSPONIES
  • MEMBER
  • 1 POST
Heater core leaked very badly inside the vehicle. Water was redirected to eliminate going through core. Now need to replace.
Oct 17, 2019 at 9:33 AM
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ASEMASTER6371
  • ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
Good afternoon,

I posted the procedure below and a picture to view. This is not bad to do at all.

Roy

REMOVAL AND INSTALLATION
1. Drain cooling system.
2. Disconnect heater hoses from heater core tubes in engine compartment and plug hoses.
3. Remove glove compartment for easier access.
4. Move the Rear Antilock Module out of the way.
5. Disconnect vacuum source, then leave the vacuum harness attached to the heater core cover.
6. Remove the heater control cable from the cover using tool D91T-18532-A.

Fig. 8 Heater Core Replacement
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7. Remove the screws attaching heater core access cover to plenum chamber assembly in passenger compartment, then remove access cover.
8. Remove heater core and seal out of plenum chamber assembly.
9. Reverse procedure to install.
Oct 17, 2019 at 11:46 AM
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Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.