What are the symptoms of a Chevy Vortec engine problem?

Symptoms of Failing Idle Control Valve and Throttle Position Sensor 1 Rough idling 2 Engine stalling 3 Hesitation during acceleration 4 Hard shifting and lack of power 5 Lack of accelerator responsiveness 6 P0122 engine code (TPS sensor)

Why is my Chevy Vortec 4300 V6 leaking fuel?

In the L35 and LF6 engines, the spider injectors are known to leak at the pressure regulator and at the supply and return lines due to a design fault. Outside of leaking fuel onto the exterior of the engine itself, it can cause excess fuel to get sucked into the engine.

Where is the idle control valve on a Chevy Vortec?

The idle control valve sits on the throttle body and is responsible for adjusting the amount of air that enters the engine at idle, ultimately controlling engine idle speeds. At idle, the valve blocks a small amount of air from entering the engine, keeping idle RPM’s low.

What are the symptoms of a bad Vortec Spider injector?

Symptoms of Bad Vortec Spider Injectors 1 Misfire engine codes (P0400-P0406 and P0300 codes) 2 Long starting, hard cranking 3 Poor idle and running at low-rpm’s, but fine at high rpm’s

Why is my Chevy Silverado running rough at idle?

Really, your Silverado will be running rougher at any RPM, but a misfire will be most pronounced at idle. Spark Plug Wires – While not every model and engine combination of vehicles today comes with spark plug wires (a lot are now coil on plug), if your Silverado happens to have them, they can go bad and cause a rough idle.

What’s the misfire code on a 1998 Vortec?

Can someone please help with what I should check next, I have a 1998 Chevy K1500 5.7 Vortec with a misfire, P0300 code for 3 months. runs a little rough, while driving under normal conditions it sputters, hesitates, and also will backfire, under heavy acceleration no noticeable skip, no sputters, and does not hesitate or backfire.

What kind of engine does a Chevy Vortec have?

The Chevy vortec engine line spans from small block V6’s to big block V8’s and also includes some inline 4, 5, and 6 engines used in less popular GMC brands. The term “vortec” is simply a marketing name used by Chevrolet to communicate its use of “vortex technology”.

What are the symptoms of a failing Vortec distributor?

Symptoms of Failing Vortec Distributor 1 Engine misfires 2 P0300 to P0306 engine codes (for misfire) 3 Engine is slow to start, or not starting 4 Poor idling, acceleration, etc. (usually caused by misfires)

How long does a Chevy 4.3L Vortec engine last?

3 vortec is a very strong and reliable motor, proven by it being the longest lasting production vortec engine. Generally, these engines are extremely capable of lasting up to 300,000 miles.

What to do if your Vortec won’t start?

96 Chevy C1500 5.7L Vortec Truck won’t start, Replaced Fuel Pump, Filter & Has Spark. Hey everyone, I have a 1996 Chevy C1500 with a 5.7L Vortec, I got the truck recently and was told it just needed a Fuel pump, I replaced the Fuel pump, and the Filter, also the pump turns on and there is fuel up at the rail, I pushed the pin and it shot right out.

What causes a bad throttle body to not start?

Airflow Disruptions from Vacuum Leaks or Throttle Stop Vacuum leaks can disrupt the air-fuel flow because of an imbalanced airflow, which can cause throttle body pressure problems. The issue could also be an incorrectly adjusted throttle stop.

When does a loose camshaft make the loudest noise?

Loose or improperly seated camshaft timing gears are usually loudest when warm. They are speed sensitive only. They are not load sensitive. Cam gear noise will usually be evident at a warm idle in neutral and sounds much like a loose timing chain noise.

Why does my car make a loud noise when I start the engine?

Damaged or worn main bearing noise is revealed by dull thuds or knocks which happen on every engine revolution. This noise is loudest when the engine is under heavy load.

Why does my sprocket make noise when I Turn on the engine?

The following are causes of timing gear or chain and sprocket noise: 1 Worn timing chain and/or gears 2 Misaligned gears 3 Excessive backlash 4 A damaged tooth 5 Gear or sprocket loose on the shaft 6 Too much end play in the camshaft or crankshaft

What to do if your Chevy Blazer engine isn’t working?

Replace your worn-out Chevrolet Blazer engine with a quality engine from AutoZone. There are several warning signs that the engine on your Blazer isn’t working.

What kind of engine should I get for my Chevy Blazer?

If you depend on your Chevy Blazer to handle your everyday commute, a faulty engine is definitely something you don’t want to mess around with. Replace your worn-out Chevrolet Blazer engine with a quality engine from AutoZone.

What causes a Chevy Vortec distributor to not turn?

The cap is prone to warping from the heat, which results in the cap rubbing against the distributor rotor button. This causes the rotor bushing to wear out and the distributor begins to no longer be able to turn. The simplest option here to fix this problem is upgrading to a distributor that has an aluminum housing on it.

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

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.

https://www.youtube.com/watch?v=IIoVP3CAOu4

How to test the throttle position sensor ( GM 4.3L )?

Connect the black multimeter test lead directly on the battery negative (-) terminal. Turn the key to its ON position, but DO NOT start the engine. Your multimeter should register between 0.5 to 0.9 Volts DC. This voltage value should not be jumping up and down but should remain steady.

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.

What are the OBD codes for GM cars?

GM OBD1 Codes 13 O2 sensor or circuit 23 MAT circuit IAC sensor (95 models) 24 vehicle speed sensor 22 TPS out of adjustment 25 MAT circuit

What does the EGR valve do on a GM 4.3L?

More GM 4.3L, 5.0L, 5.7L Tutorials. As you’re probably already aware, the EGR valve’s job is to let a metered amount of exhaust gas (that is oxygen free) into the intake manifold to reduce the amount of oxygen entering the engine.

What kind of engine does Chevy C / K 1500 have?

For 1997, the optional third door could be ordered on any C/K 1500 model, not just the top-line Silverado. Chevrolet made few changes to the C/K as it readied a replacement for the 1999 model year. At introduction, base engine for the C/K 1500 and 2500 was a 160-horsepower, 4.3-liter V6.

What kind of drive does a Chevy C / K have?

All 4-wheel-drive models used Insta-Trac, an on-demand, part-time 4WD system. 4WD trucks had shift-on-the-fly capability and automatic-locking hubs. Four-speed manual gearboxes departed in 1992, when a 190-horsepower turbodiesel V8 debuted for heavy-duty use.

What kind of engine does a Chevy Cheyenne have?

Engine Throughout their production, the Cheyenne trim levels of the C/K 1500 series had a 4.3-liter V6 engine. It had a bore of 4.00 inches and a stroke of 3.48 inches. From 1992 until 1996, these trucks featured four disc brakes, two of which were ventilated, and an anti-lock brake system.

When did Chevy stop making the Cheyenne truck?

The company ceased production of its C/K series in 1999 when it introduced the Silverado. Throughout their production, the Cheyenne trim levels of the C/K 1500 series had a 4.3-liter V6 engine. It had a bore of 4.00 inches and a stroke of 3.48 inches. These trucks had different power capabilities depending on the year.

What should I replace on my 1998 Chevy k1500?

Here is what has been replaced to try and stop this misfire: spark plugs, spark plug wires twice, distributor cap twice, rotor, ignition coil, EGR, CTS on intake manifold, coolant temp gauge sender, fuel filter, fuel pump, MAF sensor, oil change.

What was the weight of a Chevy Cheyenne truck?

They had an independent, torsion beam front suspension with a stabilizer bar and torsion springs and a rigid, beam rear suspension with a stabilizer bar and leaf springs. The C/K 1500 Cheyenne trucks from 1992 until 1998 had a maximum towing capacity of 5,000 lbs. Depending on the production year, they had a curb weight of 3,829 to 4,127 lbs.

Why is my distributor not working on my Vortec 4300?

And the distributor sits in a high-heat part of the engine with poor air circulation or cooling. The cap is prone to warping from the heat, which results in the cap rubbing against the distributor rotor button. This causes the rotor bushing to wear out and the distributor begins to no longer be able to turn.

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.

What to do if your Chevy S10 won’t start?

EASY…Popping, Vapor locking…Jump time??… 1995-2008 – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

How often does a 94 S-10 4.3 drop rpm?

After you take it out and drive it, it’ll idle fine for a couple minutes, then will drop a couple hundred rpms every 30 seconds or so for just a count, then back to normal. Any ideas? I’m pulling my hair out.

Which is the longest living engine in the Vortec family?

The 4.3L Vortec is the longest living and most successful of the Vortec engine family. Despite first being introduced 35 years ago, there are tons of these vehicles still on the road today. However, while these engines are rock-solid for the most part, there are still a handful of common problems worth mentioning.

How to check the power of a S10 Blazer?

An expert that got 5 achievements. An expert whose answer got voted for 100 times. Check your coil output, buy a cheep spark tester. Pull of a spark plug wire and plug in the tester (ground the other end), set it to bridge a gap for 30,000 volts.Have someone start it and make sure the spark will jump the gap on the tester.Danger-Very high voltage!

Why does my Chevy Blazer have no power?

If not that code then your problem is most likely the cheap plastic distributor that GM installed for that year. Take off that expensive cap and see if the shaft jiggles. It is better to remove the distributor to inspect it. AutoZone sells a lifetime warranted Distributor for about $90.

Why does my Chevy Blazer engine bog down when I hit the gas?

Take it to a good local mechanic (not a dealer) and see if this is one problem. My Blazer bogs down when you hit the gas and has trouble starting. We have replaced the MAF sensor, plugs, rotor, cap, plug wires, and fuel filter. The fuel pressure is at 50psi when idling and 64 wot when driving.

Why does my Chevy Blazer not go over 20 mph?

Won’t go over 20 mph. Starts right up. New plugs and wires. Never really cuts off. Runs hot but not extremely. Mass air flow is usually an intermitant problem. This sounds more like a stopped up catylist converter. take the cat off and run it, see if it gets hot, most likely that will be the problem]

What kind of spark does a S10 Blazer have?

It will light you up if your touching the tester while the car is running!You’ll be able to see a bright blue spark (and hear it as well) if your coil is good.If it’s a yellow thin spark it’s probably the coil. If you have good spark, check the fuel filter and fuel pressure at the fuel rail.

Where are the intake gaskets on a Chevy Vortec?

The intake gaskets on the LB4 and L35 vortec’s are very prone to going bad which results in engine leaks, overheating, stalling, etc. The intake gasket sits between the intake manifold and the cylinder head.

What was the horsepower of a 1997 Vortec truck?

The truck engine was rated at 255 horsepower and 330 foot-pounds of torque. The 5700 engine appeared in the 1997 Chevrolet Express, Chevrolet Suburban, Chevrolet Tahoe, Chevrolet/GMC full-size trucks and the Cadillac Escalade. This engine was replaced in 2002 by the 5.3 5300.

What causes an intake gasket on a Vortec to leak?

Leaking Intake Manifold Gasket The intake gaskets on the LB4 and L35 vortec’s are very prone to going bad which results in engine leaks, overheating, stalling, etc. The intake gasket sits between the intake manifold and the cylinder head. It is responsible for sealing engine vacuum, and also engine coolant.

What are the symptoms of a Chevy Vortec engine problem?