Question on Boxster Flush

Somehow the waterpump on my 02 Boxster came loose, and coolant started leaking. To be safe, I replaced it with a new waterpump. After I installed he waterpump, the temp gauge does not move and the temp red light keeps blinking. I've topped off the coolant. Has anyone else experienced this issue and how was it remedied? Thank You

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Boxster Coolant Replacement / Boxster Coolant Flush - 986 / 987

[Denny at Pelican Parts]

You possibly still have air in the cooling system causing the gauge not to read. Also check the connection to the coolant temp sender. I would not recommend driving your Boxster until proper gauge readings are achieved.



- Denny

[Gallip]

I am experience this exact same thing, replaced water pump, no gauge movement, low coolant light flashing.
I am awaiting my vacuum flush tool that I hope will resolve the problem. I wonder if an air blockage at the thermostat would prevent it from ever opening? Not sure where temp sender is in relation to the thermostat.

[BYprodriver]

You need to inspect the old water pump, hopefully the impeller is not metal, but the composite internal impeller. If it is not metal, search for all the broken parts from the impeller, you don't want them getting stuck in the water passages especialy in the heads because it can crack the heads.

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