We installed another pump last year. He whimpered from the start and eventually collapsed. This one was much better and featured a new O-ring inlet tube. This O-ring is often the reason your pump fails. It gets old and brittle and loses air, causing a squeak. If this is allowed to continue, the pump may fail. This part makes sure you really fix it. The car is like new even though it is 20 years old. Be sure to add liquid and you're done.