Probable heater coil?

[dirtbag7]

After I did some upgrading on the engine, I took my toy out for a little test drive. I started smelling some anitfreeze and my defroster started fogging up my window. Pretty sure I've lost the heater core. How hard is it to replace on a 74?
Thanks.

 

[toomany]

http://coloradok5.com/heatercore.shtml

It says it's for 75-91. I'm not sure what the differance between 73-75 is, but it can't be that big. It's not a real hard job to do.

 

[dremu]

Year doesn't matter; IIRC all 73-91 are the same.

It's easy if you don't have AC, took me less than an hour.

If you have AC, I gather it's more complicated and takes longer.

-- A

 

[4X4HIGH]

First, it's a heater CORE. Yeah the 73-91 are basically all the same to change and obviously if yours doesn't have AC it will be slightly easier. I changed mine on my 89 with AC in just less than an hour.

 

[toomany]

Year doesn't matter; IIRC all 73-91 are the same.

I figured they were the same. Anyone know why the tech article says 75-91?

 

[dirtbag7]

Thanks for the help guys. I realized after I'd posted it that I had indeed called it a coil instead of a core, my bad. I'm new to the ins and outs of my K5 so I appreciate the info.