S10, Sonoma 4.3L Index of Articles

The alternator on the 2001-2003 4.3L V6 Chevrolet S10 pickup and GMC Sonoma is a computer controlled alternator that can easily be tested with a multimeter. In this... [read more]

If you suspect that the alternator has failed and isn't charging the battery, this tutorial will show you how to test it. The three tests described in this tutorial will... [read more]

This tutorial will help you test the EGR valve on the 4.3L V6 engine with TBI fuel injection. No scan tool is required for any of the tests. You'll quickly determine if the... [read more]

The alternator on the 1996-1997 4.3L Chevy S10 pickup and GMC Sonoma can be easily tested with a multimeter and in this tutorial, I'll show you how. With the results of the... [read more]

In this tutorial, I'll explain the fuel pump pressure test step by step on the 1992-1995 Chevrolet S10 pickup or GMC Sonoma equipped with the 4.3L V6 CPI fuel injected... [read more]

You can easily and quickly test the electronic EGR valve with a multimeter. In this tutorial, I'll explain the tests you need to do step-by-step. With your test results,... [read more]

The fuel pump on your Chevrolet S10 pickup, GMC S15 pickup or GMC Sonoma's 4.3L V6 TBI equipped engine can be tested with a fuel pressure test gauge. In this tutorial, I'll... [read more]

You can easily find out if the fuel pump is good or bad with a fuel pressure test performed with a fuel pressure gauge. In this tutorial, I'll explain how to do the fuel... [read more]

The starter motor is the component that cranks the engine to get it to start (when you turn the key to the START position). Eventually, the starter motor is gonna fail and... [read more]

The EGR valve vacuum solenoid is known in GM tech speak as the Electronic Vacuum Regulator Valve (EVRV) solenoid. Testing it isn't difficult and in this tutorial, you'll... [read more]