where is the heater core located and how do i remove and replace it?

1995 OLDSMOBILE ACHIEVA
77,000 MILES
Avatar
CREATOR AND JUDGE
  • MEMBER
  • 21 POSTS
the car is leaking coolant from the passenger side, in front of the passenger side wheel. and my passenger side floorboard is wet. it's my opinion, that the heatercore is leaking.

give me insight, on how to remove and replace the heater core in the car.
Aug 10, 2012 at 4:32 AM
Advertisement
Avatar
KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
Are you sure it is the heater core? Do you have overheating and coolant losses issues? A bad heater core would result in that.

It could just be a clogged drain hose from the A/C cooling coil.

HEATER CORE (below center of dash)
CAUTION: DO NOT apply excessive force to heater core pipes.

Removal & Installation

1. Disconnect negative battery cable. Drain cooling system. Raise and support vehicle. Remove drain tube. Disconnect heater hoses from heater core. Lower vehicle.

2. Remove left and right sound insulators from below instrument panel. Remove steering column opening filler. Remove floor outlet duct. Remove heater core cover and heater core. See Fig. 10. To install, reverse removal procedure. Fill cooling system.


Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Aug 10, 2012 at 7:26 AM
Avatar
AUTOMANIA
  • MEMBER
  • 1 POST
Wow I seem to have the same problem. My 1999 Honda Civic Dx Coupe been overheating and my fans don't come on and I am leaking coolant from the Heater Core Hose. Thanks For Sharing Your information on Heater Core Issues.
Image (Click to enlarge)
Attached Media
Apr 27, 2017 at 6:57 PM
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,840 POSTS
  • ASE Certified Mechanic
Good to hear, please use 2CarPros anytime we are here to help.

Cheers, Ken
May 1, 2017 at 2:02 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.