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Going to flush heater core, couple q's

2K views 3 replies 4 participants last post by  jjpark 
#1 ·
Hey all!

Need to flush my heater core, barely any heat at idle.

I have most everything to get it done, but I still don't know a couple of things,

-Which port is inlet/outlet? I think passenger is outlet... Please correct me if I'm wrong

-Car has orange coolant as of right now, what would I pick up to match it as I don't plan on flushing the whole system right now...?

Thanks!

Tony
 
#3 ·
You are correct on the inlet and out. I would do a full flush with water and then replace with G12 or G13 coolant. I did this exact thing to mine when I bought it with orange coolant and a cracked overflow tank. May want to do some additional things to the flush on the heat issue with some CLR soak. Do a youtube search as I saw a good video on this.
TomK
 
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