Hey I’ve got an 00 Ram 2500 Diesel and whenever I turn in the heat I smell engine coolant what does this mean? Heater core? Truck has not one leak anywhere... thanks

Heater core is definitely the culprit I would say. Nothing else in the HVAC box that would leak any coolant.

 

Never had any leak in my coolant system other that that. Unless you count blown radiator. That goes beyond a leak. Never smelled the coolant, it left so fast.

Edited October 14, 20178 yr by dripley

How hard is it to replace? And what needs taken apart to do it?

Not bad its all day project for a newbie. I do them now in about 4 hours.

https://mopar1973man.com/cummins/articles.html/24-valve-2nd-generation_50/54_cab-interior/hvac-case-removal-r320/

I used Mike's article to do mine. I replaced my dash cover and rebuilt the HVAC box with new foam and replaced the heater core and the  AC evaporator while I was in there. I spent 2 days doing mine but got in no hurry doing it. It is not difficult but find some time so you can take your time if you need it. I also replaced the blend door connector while in there. It can be replaced easier with the box out, but can be replaced later if you are not having problems with the blend door.https://heatertreater.net/dodge-ram-95-02/