A Chevrolet Silverado with a V6 engine uses a distributor-based ignition method, while a V8 engine is distributor-less. Checking your Silverado's ignition operation for problems varies according to the type of engine. There are a rare additional tests to perform on a distributor-based ignition development. Whether your Silverado has any problems starting and you recognize the battery is skilled, supersede these troubleshooting steps to gem where the problems calumny, be it in the ignition coils, circuits, crankshaft position sensor or dynamism train curb module.
Instructions
V6 Engines
1. Unplug the ignition coil wire from the distributor cap and connect it to a calibrated ignition tester. Eccentric person the engine and flash for a Glimmer at the coil wire. Provided a commendable Glimmer appears, the poser is possible within the distributor.
2. Analysis the coil wire's resistence with an ohmmeter whether no Glimmer occurs. Moderate the wire provided the resistence isn't all over 1,000 ohms per inch.
3. Disconnect the electrical connector on the ignition coil and the ignition clout module. Turn the ignition to the "On" position. Test for voltage at the pink terminal on Everyone harness connector and continuity to the battery ground at the atramentous wire terminal. Provided there is no voltage, evaluation the fuses and the under-hood electrical centre's circuits to the coil and module.
4. Criterion the ignition coil's relevant and secondary resistence with the ohmmeter. The substantial resistence should be approximately 0.1 ohm and the secondary resistence should be 5,000-25,000 ohms with infinite resistence between the important terminals and core. Transform the coil provided it fails any resistence tests.
5. Probation the ignition polity module's trigger signal. Reconnect the module to its electrical connector and attach a test light's lead to the positive battery terminal. Touch the test light's probe to the coil connector's white/black terminal and crank the engine. You have a trigger signal if the test light blinks.
6. Disconnect the control module's electrical connector if you don't get a trigger signal. Connect a voltmeter's positive probe to the harness connector's white terminal and the negative lead to a good ground point. Set the meter on the AC volts scale and crank the engine. If you don't get 1.0 to 4.0 volts, the crankshaft position sensor is good and the related circuits have continuity, have a service center test the power-train control module.
7. Test the white/black wire for continuity between the ignition module and ignition coil connectors if you have good voltage but no trigger signal. Replace the ignition control module if there is continuity between the connectors.
V8 Engines
8. Attach a test light's lead to the battery's positive terminal, touch the probe to the coil connector's second terminal from the left and crank the engine. Replace the ignition coil if the test light comes on and all circuits are good but there was no spark at the connector's black terminal.11. Check the crankshaft position sensor and the circuits between the ignition coil and power-train control module if there was no trigger signal.
Test the black wire terminal on the connector for continuity to the battery ground. If you get battery voltage from the pink terminal but no spark at the black terminal, the problem can lie in the coil, crankshaft position sensor, wiring or power-train control module.
10. Check for a trigger signal from the power-train module if you have a year 2000 or older Silverado. Connect a 12-volt test light to the negative battery terminal. Unplug the electrical connector from an ignition coil and check for voltage at the pink terminal while the ignition switch is on. Check the fuses and wiring/circuit between the ignition coil connector and under-hood electrical center if there is no voltage.9.
If the sensor and circuits check out, have an expert look at the power-train module.
