shurflo pump not priming

have a shurflo pump for my outtake on my livewell.

It only works when i prime it with a hose to get the water suction flowing on it. I checked all the connections to make sure that no air is getting and i still cant figure out what is wrong with it. It works good when it is primed up.

It seems like it is running louder than the pump that actually pumps the water into the livewell, not sure if that means anything.

Is there something in these pumps that can break to make them stop being self priming?

thanks

At least yours works…

Mine is only about 3.5 years old and it is dead. Time to spend another $169 on a new pump. I’ve got the old one beside me. Makes for a great paperweight!

'05 Wellcraft 232 Coastal