Combustion engines need three things to operate: fuel, air, and spark. If your fuel pump isn’t delivering the fuel your engine needs, it will run poorly, or not at all. Or, the pump is fine, but your fuel gauge isn’t working. Many modern pumps include an integrated sending unit. Either way, a new engineered to fit fuel pump for TRQ is just what you need. How to install a new TRQ fuel pump with integrated sending unit in your 2008-11 Jeep Liberty.