Strange HWH Pump Behavior

[John Hilley]

Frequently when starting the engine, the HWH pump turns on. It stays on until starting to move. If I start the engine, but don't move it keeps running until I shut the engine off. If I start the engine again, the pump remains off.

[KIX]

Clean and reseal pump to chassis ground. Typically near the pump.

[HotMech]

Are you sure it's the HWH pump, or is it maybe the brake boost pump, you're hearing?
K.

[John Hilley]

Originally Posted by HotMech

Are you sure it's the HWH pump, or is it maybe the brake boost pump, you're hearing?
K.

I'm sure it's the HWH pump