What do you need to know about a GM 4.3L V6?

This video goes through the teardown process of a GM 4.3L V6. It has been removed from the vehicle and we take it apart, except for crank and piston removal. 1. Engine: • Fuel System: Purpose is to deliver fuel to the engine. It consists of the fuel tank, pump, gauge/sensor, filter, pressure regulator and injectors.

When to clean throttle body 4.3L V6 position sensor?

Clean the throttle body to fix a sticky throttle on a 4.3 in a Blazer, S10, Silverado, and express. Also GMC Jimmy, Sonoma, Sierra, Savana. This applies to 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007.

What causes engine knock on a 4.3L Vortec?

Engine knock can be caused by a ton of factors, such as low-grade fuel, bad spark plugs, carbon build-up, etc. Engine knock is terrible for your engines internals and can cause serious damage to the pistons and to the cylinder walls. On the 4.3L vortec, the cause of the engine knock has not necessarily been figured out, still to this day.

What are the symptoms of a bad intake manifold gasket?

Symptoms of a Bad Intake Manifold Gasket – Chevy 4.3L 1 Engine misfires 2 Sluggish acceleration, lack of power 3 Lean or rich air to fuel ratios 4 Engine overheating 5 Low coolant light illuminating 6 Leaking coolant / dripping onto garage floor More …

How to troubleshoot a Chevy 4.3 engine?

1 Common Problems. A common complaint with the Chevy 4.3 engine is that it doesn’t idle well, it’s loud and makes awkward noises. 2 Idle Air Control Valve and Throttle Conrtol Switch. Open up the hood and look at all the wires, spark plugs, tubes, vacuum lines and valves. 3 Check Your Oil. 4 Vehicle Fuilds.

Are there any problems with the Chevy 4.3 Vortec engine?

The 4.3 Vortec engines made from 1996-2002 (L35 and LF6) have been reported to have engine knock problems. In a properly functioning engine, fuel burns in even pockets instead of all at once. The pockets burn in even timing, in sync with engine cycles. Engine knock occurs when the fuel burns unevenly and out of sync with the engine cycles.

Is the Chevy S10 extreme 4.3 W misfiring?

11 people found this helpful. my 99 s10 extreme 4.3 W missed at the idle driving speed range for years got worse when it was damp outside.stomp down on the gas and fine.it also started and idled well it was just the normal driving range.

What was the misfiring code on my 1999 Chevy S-10?

First we replaced the plugs that were the wrong ones. With the computer conected we monitored the live data and were recordeing most of the misfires in cylinder 6, 4, 2 with an occational misfire on 5. We had no codes recorded in the ECM but the fuel trims were way off.

What do you need to know about a GM 4.3L V6?