Put in a used heater core...

TheOtherside · Post by **TheOtherside** » 17 May 2020, 11:16

No more foggy windshield or steam pouring out the vents

But it doesn't get very warm...

Any idea what the problem might be?

crlande · Post by **crlande** » 17 May 2020, 12:21

clogged core, bad thermostat, blend door issue?

Cookeh · Post by **Cookeh** » 17 May 2020, 12:44

The above, plus potential trapped air in core.

Post by **abscate** » 17 May 2020, 14:04

New foam needed around heater core, or else the air doesn't go through it.

If your cooling system is working ok, it is doubtful the core is clogged since they are full flow.

TheOtherside · Post by **TheOtherside** » 17 May 2020, 16:07

It gets warm, takes a bit, but definitely gets warm.

Gets colder at idle after 5 minutes.

Post by **FlyingVolvo** » 17 May 2020, 16:51

Did it get super hot before (foggy window and all?)

If so, my bet is on trapped air or like abscate said the foam insulation around it. Let the system warm up to full temp with the coolant reservoir cap off, rev a little to try and get things moving around a bit to purge system of air. Carefully see if you can reach and (emphasis on carefully) feel any heat of the heater hoses going into the cabin.

Post by **smacknab** » 17 May 2020, 20:29

"I also like to live dangerously"

Seems like you have some good suggestions here. If you haven't done this job before just make sure to check waaaay under your carpet for coolant. The top of the floorboard soundproofing foam is rubber so it's possible to miss the coolant and a couple of us have gotten burned by coolant living under there.

Post by **smacknab** » 17 May 2020, 20:32

"I also like to live dangerously"

Seems like you have some good suggestions here. If you haven't done this job before just make sure to check waaaay under your carpet for coolant. The top of the floorboard soundproofing foam is rubber so it's possible to miss the coolant and a couple of us have gotten burned by coolant living under there.

Post by **abscate** » 18 May 2020, 04:45

The Swedish car parts core is $38 through amazon via the MVS amazon link, not much more than junkyard one with lifetime warranty.

Clean thoroughly to remove oil smell before installing

TheOtherside · Post by **TheOtherside** » 18 May 2020, 07:44

It got really warm before with foggy windows.

I had a friend do it and I wasn't there, so I don't know what the foam around it even looks like to say yes or no