Mopar 4627371AJ Manifold-Intake

You can Select Your Vehicle to check if 4627371AJ fits your vehicle.

You should remove the upper dipstick tube mounting bolt and detach the throttle and cruise control cables if necessary.

To remove the lower intake manifold, you should follow the steps for removing the upper intake manifold. Additionally, you need to disconnect the fuel line and remove the fuel injectors and fuel rail. Pry the wiring harness retainer from the end of the manifold and remove the lower intake manifold bolts. Discard the manifold-to-cylinder head seals.

Check the 0-rings on the intake manifold for damage or hardening. If they're OK, they can be re-used. If necessary, install new 0-rings and make sure they seat properly in their grooves.

Remove the intake manifold by sliding it forward, then disconnect the MAP sensor and any other connectors. As the manifold is lifted from the engine, check for and disconnect anything still attached. Note that the mating surfaces of the cylinder heads and intake manifold must be perfectly clean when the manifold is installed.

The next step is to disconnect the alternator and air conditioning compressor, and unbolt the ground straps.

Disconnect the negative battery terminals, disconnect the left intercooler tube from the EGR air flow control valve, remove the EGR crossover tube, disconnect interfering wiring harnesses, remove the oil dipstick tube bolts and intake manifold bolts, install a new gasket during reassembly, disconnect the fuel injector wiring harness and pressure sensor wiring harness, remove the air intake heater mounting bolts, lift off the heater assembly and discard the gasket, use new upper and lower heater block gaskets during reassembly, and replace the intake air heater relay by disconnecting the negative battery terminals, labeling and disconnecting the trigger wires, removing the nuts from the cable terminals, and removing the relay mounting bracket bolts.

Disconnect the wiring from the sensor at the rear of the fuel rail.

Disconnect the wiring from the sensor at the rear of the fuel rail.

When installing the lower intake manifold, you should ensure that the mating surfaces are clean and install new intake manifold seals. Lower the manifold into place and tighten the mounting bolts.

Disconnect the negative battery terminals, disconnect wiring from the EGR temperature sensor and EGR valve actuator, remove the oil dipstick tube fasteners, intercooler outlet tube, air transfer tube, and air inlet, disconnect the fuel supply tubes and lines, disconnect the wiring from the sensor at the rear of the fuel rail, remove the high pressure fuel line from the dump valve, remove the fuel rail, disconnect the remaining wiring harnesses, and then the intake manifold can be removed.