Question 1

How to replace the fuel rail assembly on Chevrolet Malibu?

Accepted Answer

The first step to replace the Fuel Rail assembly requires depreciation of fuel system pressure. Begin the replacement by disconnecting the air cleaner outlet resonator followed by removing the vacuum pipe from the Fuel Pressure Regulator along with detachment of engine fuel supply and return pipes. After disconnecting the Fuel Injector harness connectors you should remove the Fuel Rail attaching studs while maintaining the terminals and spray tips of fuel injectors free from damage. Position the Fuel Rail toward backwards and up before lifting the fuel injectors out of their cylinder head port connection and then swivel the rail downward to remove both the rail and injectors. New lower o-rings should be used during installation of the fuel injectors while all injector tip o-rings require lubrication before entering the Intake Manifold. The installation of the Fuel Rail requires a downwards position of the fuel injectors into the cylinder head ports followed by forward alignment of the Fuel Rail and careful injector port entry. Secure the Fuel Rail attaching studs by tightening them to 10 n.m (89 lb in). The fuel connector housings should be installed with a secure connection followed by placement of supply and return fuel pipes and regulator vacuum pipe mounting. Install the resonating component at the air cleaner outlet and reconnect the negative power cable as the last installation step before inspecting for fuel leaks. Conclude the process by installing the negative Battery Cable then perform a fuel leak inspection by switching ignition on with engine off during two seconds while observing for leaks followed by ten seconds of ignition off and another two-second ignition on check.

Question 2

How to service the fuel rail on Chevrolet Malibu?

Accepted Answer

You should start by finding the eight-digit stamp on the left-hand Fuel Rail because this rail serves even-numbered cylinders 2, 4 and 6. A correct installation of Fuel Injector o-rings follows black o-ring placement above while brown o-ring placement must be below if o-rings possess different coloration since they are built with dissimilar materials yet share equivalent dimensions. Dirt and contaminants should be prevented from entering fuel passages through proper capping of fittings alongside plugging all service-related holes. The first step is to remove pressure from the fuel system before taking off the upper Intake Manifold. Remove and dispose of the o-rings from both the Fuel Rail and Fuel Pressure Regulator locations before disconnecting respective engine fuel pipes. To access the injector connectors users need to both disconnect the main injector harness electrical connector through the lock release mechanism and raise the lock tabs to pull the injector connectors free of their mounts. Start by removing the injector electrical harness from the Fuel Rail before disconnecting the coolant temperature sensor electrical connector and taking out the Fuel Rail assembly by removing its retaining bolts. Each injector must have its spray tip o-ring seal removed from its end. It is essential to handle the Fuel Rail installation method by securely plugging port inlets and outlets first to protect against contamination while keeping away from compressed air or Fuel Rail immersion in solvent baths. Adjust the Fuel Rail assembly before insertion into the Intake Manifold to install the injectors then proceed with tightening Fuel Rail bolts at 10 n.m (89 lb in). After reconnecting the coolant temperature sensor electrical connector it is necessary to install the injector electrical harness onto the Fuel Rail while joining injector connectors and verifying the slide locks are properly in place. First reconnect the main injector harness electrical connector then install new o-rings on the fuel feed pipe along with the fuel return pipe before connecting and tightening the fuel feed pipe at the Fuel Rail to 17 n.m (13 lb ft). Reinstall the upper Intake Manifold after you connect the fuel return pipe at the Fuel Pressure Regulator while tightening its nut to 17 n.m (13 lb ft). Before closing the system you must check for fuel leaks through a three-step test of turning on the ignition for two seconds followed by a ten-second off period then another on cycle for leak inspection.

OEM Chevrolet Malibu Fuel Rail

18 Fuel Rails found

Chevrolet Malibu Fuel Rail Part Number: 12608366

Chevrolet Malibu Fuel Rail, Green Line Part Number: 12602482

Chevrolet Malibu Fuel Rail Part Number: 17113318

Chevrolet Malibu Fuel Rail Part Number: 17113256

Chevrolet Malibu Fuel Rail Part Number: 55572748

Chevrolet Malibu Fuel Rail Part Number: 12684543

Chevrolet Malibu Fuel Rail Part Number: 17113608

Chevrolet Malibu Fuel Rail Part Number: 12662385

Chevrolet Malibu Fuel Rail Part Number: 12654644

Chevrolet Malibu Fuel Rail Part Number: 12627090

Chevrolet Malibu Fuel Rail Part Number: 12596571

Chevrolet Malibu Fuel Rail Part Number: 12584908

Chevrolet Malibu Fuel Rail Part Number: 17113579

Chevrolet Malibu Fuel Rail Part Number: 17113607

Chevrolet Malibu Fuel Rail Part Number: 17113268

Chevrolet Malibu Fuel Rail Part Number: 17113195

Chevrolet Malibu Fuel Rail Part Number: 12587074

Chevrolet Malibu Fuel Rail Part Number: 12586713

Chevrolet Malibu Fuel Rail

Chevrolet Malibu Fuel Rail Parts and Q&A

Related Chevrolet Malibu Parts

Browse Chevrolet Malibu Fuel Rail by Years