Heater core 98 savana

My heater appears to be leaking. I tried to take it out but the hose clamps in the fire wall are impossible to reach. Any suggestions?

PUll the core back through the firewall once everything is apart, you should be able to get them off from inside the van, make sure to loosen any retainers to give the hoses some slack.

PUll the core back through the firewall once everything is apart, you should be able to get them off from inside the van, make sure to loosen any retainers to give the hoses some slack. The hose clamps are inside the engine compartment. should I pull really hard to get it out?

Don't force the hoses back into the truck, make sure there is enough slack to get them through the fire wall or disconnect them at the other end to give yourself the room to do this, make sure the clamps fit thru the firewall openings, of course.

Don't force the hoses back into the truck, make sure there is enough slack to get them through the fire wall or disconnect them at the other end to give yourself the room to do this, make sure the clamps fit thru the firewall openings, of course.I'll try but when I look from inside the hood, the clamps are in the engine compartment next to the firewall.