EGR Backpressure Transducer: Service and Repair

Fig. 4 Electronic EGR Transducer:

NOTE: If the EGR system operates incorrectly, replace the entire EGR valve and transducer together. The EGR valve and electrical transducer are calibrated to match each other.

REMOVAL
1. Disconnect vacuum tube from transducer solenoid (Fig. 4).
2. Disconnect electrical connector from solenoid.
3. Slide transducer up and out of mounting bracket.

Fig. 5 EGR Tube Upper Mounting Screws:

4. Loosen, but do not remove, the EGR tube to intake manifold screws (Fig. 5).

Fig. 6 EGR Valve:

5. The EGR valve attaches to the rear of the right cylinder head (Fig. 6).
6. Remove EGR tube lower screws at EGR valve.
7. Remove EGR valve mounting screws.
8. Remove EGR valve and transducer.
9. Clean gasket surfaces. Discard old gasket. If necessary, clean EGR passages.

INSTALLATION
1. Install EGR valve and new gasket on cylinder head. Tighten mounting screws to 22 Nm (200 in lb) torque.
2. Using a new gasket, attach EGR tube to EGR valve. Tighten mounting screws to 11 Nm (95 in lb) torque.
3. Tighten EGR tube to intake manifold plenum screws to 22 Nm (200 in lb) torque.
4. Connect transducer solenoid to vacuum fitting on manifold.
5. Slide transducer into bracket.
6. Attach electrical connector to solenoid.