What kind of ignition coil does a GMC 1500 have?

This typical circuit diagram of the ignition coil, ignition control module, and pickup coil applies to: 1992, 1993, 1994, 1995 Chevrolet/GMC 1500, 2500, and 3500 Pick Up and Suburban equipped with a 4.3L V6, or a 5.0L v8, or a 5.8L V8 engine.

What kind of ignition system does a 1993 Chevy pick up have?

1992, 1993, 1994, 1995 Chevrolet/GMC 1500, 2500, and 3500 Pick Up and Suburban equipped with a 4.3L V6, or a 5.0L v8, or a 5.8L V8 engine. 1992, 1993, 1994, 1995 Chevrolet Astro (GMC Safari). NOTE: Testing the ignition system is a breeze.

What’s the circuit diagram for a Chevy pick up?

When did the wiring diagrams for GM trucks come out?

These GM wiring diagrams provide schematics for vehicle model years 1988 through 1998. Access our free Wiring Diagrams Repair Guide for GM Full-Size Trucks 1988-1998 through AutoZone Rewards. These diagrams include: Fig. 2: Sample Diagram: How to Read and Interpret Wiring Diagrams

How does a performance ignition system ( CDI ) work?

A CDI provides multiple sparks at low RPM for efficient combustion, and discharges a capacitor through the coil at high RPM to fire the spark plugs at a much faster rate than the coil could normally charge and fire. Upgrade your factory distributor with a performance cap and rotor.

How are spark plugs used in performance ignition systems?

For even more performance consider a performance ignition box like one of our CDI systems. A CDI provides multiple sparks at low RPM for efficient combustion, and discharges a capacitor through the coil at high RPM to fire the spark plugs at a much faster rate than the coil could normally charge and fire.

What are the symptoms of a faulty pickup coil?

What are the symptoms of a faulty pickup coil (inside the distributor) or is this more likely just an ignition maintenance thing where I just need to replace cap and rotor. Thanks. I have a Suburban with a 5.7L Vortec and is hard to start after sitting for a while.

How do you install a distributor on a Chevy 454?

If the distributor engages the gear but will not fully seat into the block, gears are not meshing. Lift the distributor up a little and turn the rotor slightly to the right and try again. It may take two or three tries to get the distributor to seat. Install the distributor hold down clamp and bolt. Do not tighten down the bolt all the way yet.

How to test the GM distributor mounted ignition module?

Put the multimeter’s dial in Volts AC mode. Disconnect the pick up coil connector from the ignition control module. Connect the black test lead of the multimeter to one of the female terminals of the connector (using an appropriate test lead).

Where are the wiring diagrams on a GMC Truck?

Chevy and GMC truck diagrams are different, usually in the exterior light and dash sections. All diagrams include the complete basic truck (interior and exterior lights, engine bay, starter, ignition and charging systems, gauges, under dash harness, rear clip, etc).

What kind of ignition system does a GMC Suburban have?

The typical ignition system circuit diagram for the 1996-1999 4.3L, 5.0L, and 5.7L 1500, 2500, 3500 Pick Up and Suburban can be found here: Ignition System Circuit Diagram (1996-1999 Chevy/GMC Pick Up And SUV). Testing a no-start problem or a misfire due to an ignition system problem is not hard.

What kind of idle does a GMC Sierra have?

After the truck starts and is warm at a stable idle in park/neutral it’ll rev up fine. But the stable idle won’t last long, it’ll idle low and rough. Mpg has decreased drastically and give off a rich smell when running.

What happens when the ICM fails on a GM car?

Generally, when the ICM or the ignition coil fails, your GM car or truck will Crank but NOT START. Specifically, the ignition coil will not spark.

What was the ignition module for a 1996 GMC c2500?

1996 GMC C1500, C2500, C3500 Pick Up. 1996 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition coil, the ignition module, or the crankshaft position sensor).

How to test the GM ignition control module?

You can find this tutorial in Spanish here: Cómo Probar El Módulo de Encendido GM 4.3L, 5.0L, 5.7L (1995-2005) (at: autotecnico-online.com ). Generally, when the ICM or the ignition coil fails, your GM car or truck will Crank but NOT START.

How does the crankshaft position sensor work on a GM car?

The crankshaft position (CKP) sensor starts to create its Crank Signal, which it sends to the PCM. The crankshaft position sensor is a Hall Effect type sensor and produces a digital (On/Off) signal that can be seen with an LED or an oscilloscope.

Why does my 93 Sierra have no spark?

You can’t post conmments that contain an email address. Fuel, Spark, crank – no start I have a 93 Sierra White, was running when parked. Picked up another Sierra that was missing under load, was swapping parts found 3 cracked plugs, and bad wires and the fuel pump vapor locking.

What makes a GM ignition coil spark away?

This Triggering Signal is known as the IC (Ignition Control) Signal in the GM service literature. The ignition control module now starts to open and close the primary current circuit of the ignition coil and as you may already be aware, it’s this opening and closing action that makes the ignition coil spark away.

Why does my GM 4.3L engine not start?

No Start Condition Basics There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start, it’s because one of these components is missing from the mix.

Why is my Vortec 5.7 not sparking?

Went and stuck it back together it, new cap new rotor wires will crank, spark and fuel but can’t get it to start. Triple checked firing order, can see gas in the throttle body am stumped. Any ideas of what this problem could be?

Why is there no spark in my ignition?

An ignition module requires some type of external input in order to activate. If your vehicle stalls unexpectedly during operation and will not start again, it is likely because of loose or corroded electrical connections in the ignition module. In this case, check the switch, clean oxidized terminals, and replace broken wires if necessary.