1999 s70 awd no heat [low coolant] 9144221 [map of ECC damper positions] Topic is solved

Post by **abscate** » 15 Feb 2026, 09:34

Solved the mystery of no low coolant light , bulb tested good.

This is a really bad idea, kids

Post by **matthew1** » 15 Feb 2026, 11:43

Post by **rolsen11** » 15 Feb 2026, 21:14

abscate wrote: 15 Feb 2026, 09:34 Solved the mystery of no low coolant light , bulb tested good.

This is a really bad idea, kids

Yikes...

Chieber · Post by **Chieber** » 16 Feb 2026, 05:07

When did you got Evita? That’s just nuts.

Post by **abscate** » 16 Feb 2026, 05:26

Chieber wrote: 16 Feb 2026, 05:07 When did you got Evita? That’s just nuts.

This is on Karla Kat, a 1999 s70 AWD

She is a capital auction special, I drove her home from DC in blissful ignorance like this.

The coolant level bulb is self tested by the DDM on a 1999, so I knew the bulb was good. Silly me for not checking for a bypassed warning system.

Evita is a 2018 rescue from NJ, a very cool lawyer chemist I still talk to regularly

Juno is a December 2025 rescue from ARF Hampton’s who talks every morning.

Post by **abscate** » 18 Feb 2026, 18:47

Polished this one off with a new level sensor from FCP

Post by **abscate** » 28 Feb 2026, 10:33

Wrapping up this.

I measured the dead volume of the heater core 9144221 as 300 ml +- 50ml

This does not include any pipe volume. Temperature 22c, P= 1012 torr, Jupiter aligned with Mars.