Tear into the dash, rip out the old one and put in the new one. I would suggest a good repair manual :-)
To remove the heater core on a 1992 Grand Marquis, first remove the dash board. Then remove the AC box to have access to the heater core.
How to install a heater core and uninstall the dash for 2002 pontiac grand prix se
No it will not
Remove the water supply hoses from your 1992 Chevy S 10 pickup truck heater core. Remove the heater core retaining bolts. Reverse the process to install your new heater core.
You can replace the sheer core, on your 2004 Pontiac Grand Prix, by removing the water lines. Remove the four bolts that hold the heater core in place. Reverse the process to install the new heater core.
Remove the hoses from the heater core pipes and install a short piece of pipe in both those ends. Install hose clamps and it's bypassed.
Easiest way is to connect the two heater hoses together.
You must remove the dash.
See previous question of same nature.
How do you install a heater core on a 1998 buick lesabre
I would recommend purchasing a shop manual for that vehicle if you intend on DIY the heater core. The manual will show you step by step how to. It will be worth the investment.
How to change a heater core on a 1997 Pontiac grand am