P1494 Jeep - What is the part I will need to replace if this is happening to my vehicle

Question

What part do I need to replace if my 1999 Jeep Grand Cherokee reads code P1494?

Answer 1

P1494 Leak detection pump SW or mechanical fault

On the LDP pump there is a vacuum hose that connects to it , majority of the code P1494 is a result of the vacuum hose getting disconnected or rupturing