GM ( Chevrolet or GMC ) 4.3 L V6 Engine Tear Down
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
The automobile consist of:
• Fuel System: Purpose is to deliver fuel to the engine. It consists of
the fuel tank, pump, gauge/sensor, filter, pressure regulator and
• Air Intake System: Purpose is to clean and direct outside air into the
engine. It consist of air filter, ducts, air plenum and intake manifold.
• Exhaust System: Purpose is to
direct Exhaust gasses out of
combustion out of engine. It consists of the Exhaust manifold, converters, pipes and
• Cooling System: Purpose is to remove excess heat from the engine. It
consists of water pump, hoses, radiator, thermostat, cooling fan and
coolant recovery tank. Also the oil system serves as a cooling system as
well as a lubricating system. It consist of oil pump, pan, filter and
1. Clutch: Purpose is to connect the engine and transmission together. It
consists of clutch drive disc, driven disc, release bearing, clutch fork,
cable, slave cylinder, master cylinder. There are three types of clutch
systems: mechanical, cable and hydraulic.
2. Transmission: Purpose is to match engine speed to road speed. Two types
used are manual or automatic. These consist of gears, linkages, cables and
converters for automatics. A manual is connected to the clutch by a
flywheel and automatic by a flexplate.
3. Driveshaft: Purpose is to connect the transmission to the rear axle. It
consists of a slip yoke, shaft and universal joints.
4. Rear axle differential: Purpose is to change the angle of motion from
engine to the wheels. It also divides torque between the wheels. It
consists of a ring and pinion gear, carrier, bearings, crush sleeve and
5. Wheels/Tires: Purpose is to provide traction to the road as well as
carry the weight of the vehicle.
Vehicle Control Systems:
1. Brakes: Purpose is to slow and stop the vehicle. It consists of master
cylinder, brake Booster (vacuum or
hydraulic), calipers, drums, pads and rotors.
2. Steering: Purpose is to direct vehicle in the required direction.
Consists of steering gear (rack & pinion), steering wheel, column,
inner/outer tie rods, pump, reservoir, hoses and pipes.
3. Suspension: Purpose is to provide stability and handling while also
providing comfort to the ride. Consists of shocks, struts, sway bars, end
links, springs, trailing arms and bushings.
1: Heating Ventilation Air Conditioning (HVAC): Heats and cools interior
air to passenger comfort. Also circulates outside and inside air.
• Air Conditioning: Consist of condenser, compressor, accumulator
(receiver/dryer) orifice, expansion valve, hoses, evaporator, controls,
actuators and modules.
• Heating: Consists of heater core, valves, hoses and switches.
1. Power Generation: Creates electrical power to run all the electrical
systems. Consists of the alternator.
2. Power storage: Stores unused power to start the car and supply voltage
to the alternator to create more electricity.
• Both systems consist of wiring, harnesses, fuse, relays and modules
Fuel pressure regulator repair blazer bravada jimmy s10 sonoma 4.3l
if the fuel pressure regulater is leaking in yours replace it, change the
oil right after. if it was leaking bad then there will be gas in the
crankcase oil. and WILL cause rod bearing failure if not caught in time.
over time the gas will leak down the intake passages and into the
combustion chamber leaking past the piston rings then into the oil.
Blown 4.3 vortec
this is my 99 s10 blazer with a blown 4.3 vortec, getting a 350 swap
4.3L 5.3L Chevy Vortec Distributer install
How to properly install a distributer on a chevy 4.3L or 5.3l vortec
engine, even if crankshaft was moved. The timing is not adjustable on these
models so it is necessary to install the distributer in correct alignment.
Vortec Throttle Body Modification 5.7 and 4.3
Easy Throttle body modification that increases throttle response and Horse
Power . This is for all 5.7 5.0 and 4.3 Vortecs.
4.3 Litre V6, a look inside the motor
Special thanks for the mention from my frineds in Iowa Sofia and Baloushka
AKA Szikness http://www.youtube.com/user/szikness
I've enjoyed watching thier videos and watching them get thier daily vlogs
This video is of the inside of the 4.3 litre V6 motor i am in process of
putting in my daughter's 1997 Chevrolet S-10 Blazer i don't explain it
well and the 4 strokes of the motor i couldn't remember are as follows,
Intake, compression, ignition and Exhaust. hope you enjoy my fumbled explanation.
Chev / GMC Misfire, poppet injector diagnosis, troubleshooting and replacement
http://www.wellsve.com/ This video demonstrates how to diagnose a sticky
poppet injector utilizing scan tool and 5 gas techniques. The upper and
lower intake are removed and replaced. The distributor cam sensor retard is
re-synced using a scan tool. The re-sync also needs to be performed at
times when a P0340 trouble code sets.
"The information presented in this program is based on a specific
diagnostic case and might not directly apply to the vehicle you are
repairing. We do not represent or warrant that the information presented
is complete or error free. Please take all safety precautions. We
disclaim any and all liability for losses, injuries or damages in
connection with your repair."
How To Clean Your Vortec 4.3L V6 Throttle Body
I show how to cheaply and quickly clean any throttle body, but specific to
my 1999 GMC Sierra 1500 Stepside with the 4.3L v6.
I created this video because I was having an issue with my truck starting
up rough. It turned out that the idle air hole on the blade was completely
clogged with carbon caused by back-spray when the engine is turned off.
All you need is a Flat Blade screwdriver for hose clamps, Carb Cleaner, and
a Toothbrush or rag.
6 Peoples Reactions to the CRAZY 900hp 3Dx Evo
We had a blast giving people rides in the Evo, even had a guest driver when
we gave Miss Thai Thai a ride after her photo shoot! See what people
thought about the car, caught a lot of people off guard.
TEXAS STREETS & TX2K13 Release now and shipping! http://www.1320video.com
Vortec 5.7 in 1999 Chevy Blazer
This is the very first time cranking over the engine after a rebuild. The
truck is a 1999 Blazer that had a 4.3 / 5 speed NV3500. I got the engine
for free on craigslist out of a 1998 Chevy Express van. The guy claimed
that the head gasket blew and mixed coolant and oil together at 220,000
Got it torn apart and found that it was the intake gasket that had gone. So
I went through and redid the whole thing. Installed a new oil pump, all
bearings, piston rings and gaskets. I also only had the block boiled and
honed out and had the heads gone through. It is still fuel injected and I
did the 0411 computer upgrade too. It has dual 2" Exhaust into 2 flowmaster super 44's, for now.
It is still a 5 speed.
Check out the engine rebuild here:
And entire truck build
GMC Jimmy, S10, Blazer DIY How to Diagnose HVAC Mode Control - Vent - Defrost - Floor Selector
This video is should provide a starting point in trying to diagnose a GMC
fan mode selection issue. My 2000 Blazer always blows air out of the dash
vents. This video demonstrates how the vacuum actuators work to divert air
from the vents to the foot wells as well as to the defrost vent. In the
next video I will test the vacuum to ensure that I have sufficient vacuum
to the actuators. Ultimately I believe that I;ll have to replace the upper
actuator, as I believe that it is faulty.