GM 13510661 Module Kit, F/Tnk F/Pmp (W/O Fuel Lvl Se)

To verify the operation of the fuel pump, try to listen for a brief sound it makes when you turn the ignition on and pressurizes the fuel system before starting your engine. Should you not hear any pump, then open up your fuel filler cap, push down on the spring loaded hatch within the neck of your gas tank, and have someone else turn on the ignition while you listen for about two seconds as to whether or not it is functioning. If this pump does not come on, you should inspect whether both relay and fuse are in a good condition located in relay box of engine compartment along with wires going back to it. In that case, chances are that the pump is broken. However, if it functions continuously when turning ON key expect that Powertrain Control Module (PCM) may be damaged so take it to qualified mechanic for diagnosis. To do a fuel pressure test find a Schrader valve test port on your fuel rail (for 2016 and newer models; high-side fuel pressure can only be checked with scan tool). Release fuel pressure and close bleeder valve on gauge at fuel outlet. On 2016 and later models release system pressure disconnect low-pressure feed line from high-pressure pump tee-in gauge assembly using appropriate adapters Turn key to ON position note gauge reading as pressure stabilizes compare reading against specification If pressure differs from specified value look for restriction in fuelsection replace module where necessary Also ensure pressure drops below 87 psi after key off and doesn't drop by more than 5 psi per minute; otherwise there might be leaky injector or bad module Finally start car check pressures swap out module if needed ensuring no lines are spilling out afterwards.

Align it with the hole in the tank and carefully insert it, making sure not to damage the fuel inlet strainer, float arm, or float.

Start by removing the charge air cooler outlet hose. Disconnect the harness connector to the fuel rail and the harness connector from the camshaft position sensor. Unclip the wiring harness retainers and move the harness and connectors out of the way. Remove the sound insulator around the pump body. Unscrew the intermediate high-pressure line fittings between the fuel rail and fuel pump and remove the fuel line bracket bolt. Remove the wiring harness bracket mounting bolts and move the bracket out of the way. Disconnect the electrical connector from the high-pressure fuel pump and disconnect the low-pressure feed line quick-connector at the pump. Remove the low-pressure fuel feed line. Remove the high-pressure fuel pump bolts and remove the pump, gasket, and lifter follower. Lubricate the lifter follower with clean engine oil and install it into the bore in the cylinder head. Install the alignment gauge and rotate the engine until the gauge sits flush with the cylinder head. Remove the alignment gauge and, if necessary, the valve lifter follower. Lubricate the pump valve lifter follower with engine oil and insert it into the bore. Set the pump into position on the bore using a new O-ring gasket and tighten the bolts evenly. The remainder of the installation is the reverse of the removal process. Reconnect the cable to the negative battery remote terminal, start the engine, and check for fuel leaks.