Jeep 33007127 INJECTOR

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For the fuel injector, remove the throttle body upper and lower bonnets. Detach the injector connector and remove the retainer. Discard the centering ring and upper and lower O-rings. Install the replacement O-rings and centering ring. For the fuel pressure regulator, remove the throttle body and the pressure regulator mounting screws. Remove the housing, spring, spring seats, diaphragm, and pivot. Clean the housing and reinstall the components. To replace the ISA motor, disconnect the ISA motor harness connector and detach the throttle return spring. Remove the mounting nuts and the ISA motor from the bracket. Reinstall the motor.

Remove the housing, spring, spring seats, diaphragm, and pivot.

Depending on the model year:On 1995 and earlier models, relieve fuel pressure, disconnect the negative battery terminal, and remove the regulator retaining screws or clip. Pull the regulator off the fuel rail, replace the O-ring, and install it with a new one before reinstallation.On 1996 and later models, the regulator is integrated with the fuel pump module and cannot be serviced separately.For 1997 and later models, relieve fuel pressure, remove the fuel tank, disconnect the fuel line, pry the retainer clamp loose, carefully remove the filter/regulator, replace the gasket, ensure the new filter/regulator has both O-rings in place and apply clean engine oil to them before installation. Reattach the retainer clamp and complete the rest of the installation in reverse.