GM 4.3L, 5.0L, 5.7L Index of Articles

1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E)

1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E)

The 1993 throttle body fuel injection (TBI) system's computer has 2 connectors. One is red and the other is a blue one. Each connector has 2 rows of 16 slots for a total of 32 slots. One row of the RED PCM's connector is prefixed with the letter...   read more >>

How To Test The Blower Resistor (1988-1993 Pickups)

How To Test The Blower Resistor (1988-1993 Pickups)

The blower motor resistor (located on top of the heater core housing and behind the glove box) isn't hard to test. In this tutorial I'll show you how to continuity test it with a multimeter in Ohms mode (Ω). NOTE: This tutorial only...   read more >>

Instrument Panel Fuse Box (1995-1996 Blazer, Jimmy, Bravada)

Instrument Panel Fuse Box (1995-1996 Blazer, Jimmy, Bravada)

In the table below you'll find the fuse location and description of the fuses of the fuse box on 1995 1996 Chevy Blazer (GMC Jimmy, Oldsmobile Bravada). The fuse box is located on the driver side of the dash. IMPORTANT: The fuse box...   read more >>

How To Test The Blower Motor (GM 4.3L, 5.0L, 5.7L)

How To Test The Blower Motor (GM 4.3L, 5.0L, 5.7L)

Sooner or later, the blower motor on your GM pickup (van or SUV) is gonna' give up and stop working. So, if you're having a ‘no blower’ problem, the first thing you should do is to check the blower motor. This can be done by...   read more >>

How To Remove The Fan Clutch (Lisle LI43300 Pneumatic Fan Clutch Wrench)

How To Remove The Fan Clutch (Lisle LI43300 Pneumatic Fan Clutch Wrench)

Removing the fan clutch from the engine of your GM pick up (van, mini-van, or SUV) can sometimes be a frustrating challenge (I've been there). There are several tools out that are designed to make the job a little easier... but that are just...   read more >>

How To Test The Blower Control Switch (GM 4.3L, 5.0L, 5.7L)

How To Test The Blower Control Switch (GM 4.3L, 5.0L, 5.7L)

Testing the blower control switch (on the A/C-Heater control panel), to find out if its bad or not, can be done with a set of simple multimeter resistance tests. In this tutorial, I'll show you how to get it done in a step-by-step way. This...   read more >>

Rough Idle After Replacing 'Spider' Injector or Fuel Pressure Regulator

Rough Idle After Replacing 'Spider' Injector or Fuel Pressure Regulator

So, you replaced the fuel pressure regulator, or the entire ‘Spider’ fuel injector assembly... and now, when you start the pickup (SUV, van or mini-van) it idles very rough! If this is happening to you, then let me tell you right off...   read more >>

How To Test The Blower Motor Resistor (GM 4.3L, 5.0L, 5.7L)

How To Test The Blower Motor Resistor (GM 4.3L, 5.0L, 5.7L)

When the blower motor resistor fails on your GMC pickup or SUV, the blower motor will only work in one speed and in a few cases not at all. Thankfully, testing the blower motor resistor is not that hard and in this tutorial I'll show you 4...   read more >>

How Can I Tell If My 4L60-E Transmission is BAD?

How Can I Tell If My 4L60-E Transmission is BAD?

How can I tell if my automatic transmission is bad? How can I tell if it's just a shift solenoid that's bad? How can I tell if my automatic transmission needs an overhaul? These are some of the most frequently asked questions I get and if you're...   read more >>

Instrument Panel Fuse Box (1997 Blazer, Bravada, S10 Pickup, Sonoma)

Instrument Panel Fuse Box (1997 Blazer, Bravada, S10 Pickup, Sonoma)

In the table below you'll find the fuse location and description of the fuses of the fuse box on 1997 Chevy Blazer, Oldsmobile Bravada, S10 Pickup, and GMC Sonoma. The fuse box is located on the driver side of the dash. IMPORTANT: The fuse...   read more >>