Contents: Examination ↧ Replacement ↧
1. Disconnect the cable from the negative terminal of the battery.
2. Remove the distributor cap and rotor.
3. Remove the ignition distributor from the engine (see section 8).
4. Disconnect the sensor leads from the ignition unit.
Examination
5. Connect one lead of the ohmmeter to the sensor terminal and the other to ground, as shown in the illustration. To check the wires for breaks, bend them with your hand. The ohmmeter should always show "infinity". If it does not, the sensor is faulty and should be replaced.
10.5. Checking the sensor on the ignition distributor of the NE system! (for 3.1L engines): 2 - ohmmeter, 3 - sensor terminals disconnected from the ignition unit, 4 - 4-pin connector, 5 - ignition unit, 6 - sensor, 7 - contact "P"
6. Connect the ohmmeter leads to the terminals on the sensor terminals. To check the wires for breaks, bend them with your hand. When bending the wires, the ohmmeter should show a constant resistance value between 500 and 1500 ohms. If this is not the case, then the sensor is faulty and should be replaced.
Replacement
7. Remove the spring from the distributor shaft.
8. Mark the distributor drive and shaft so that they can be easily reassembled in the same position.
9. Carefully place the ignition distributor on a wooden block and use a hammer and punch to knock the pin out of the distributor shaft and gear (see illustrations).
10.9a. To remove the sensor, place the distributor shaft on a wooden block and use a punch and hammer to knock out the pin
10.9b. Remove the driven gear with spacer washers from the shaft tailstock, paying attention to the order of removing the washers
10. Remove the distributor shaft.
10.10. Remove the shaft from the ignition distributor
11. Pull the sensor up and remove it from the ignition distributor (see illustration). Remember the order in which these parts are removed.
10.11 To remove the sensor from the ignition distributor of the 3.1L engine, unscrew the bolts from the pole pieces and pull the coil up
12. Assembly is carried out in reverse order.
(The original text can be found on the website: ChevyMan.ru)