What kind of noise does a Chevy 4.3 make?

by Contributor. A common complaint with the Chevy 4.3 engine is that it doesn’t idle well, it’s loud and makes awkward noises. Examples of this are staling, lurching and poor acceleration. Poor idling and loud engines usually go hand-in-hand.

Why is my Chevy 4.3 engine still running?

Checking your vehicle’s fluid levels is always a good idea to maintain the overall longevity of the engine. Once you have ruled out all the basics, you can go back to what the Chevy 4.3 engine is known for: bad idle air control valves and throttle control switches.

Who is the remanufacturer of the Chevy 4.3 liter engine?

Accurate Engines is an industry leading remanufacturer of the Chevrolet 4.3 liter engine. Our remanufactured Chevy 4.3 liter engines are being shipped daily to warranty companies, Chevrolet dealerships, engine repair facilities and directly to Chevy vehicle owners.

What kind of engine did Chevy have in 1997?

Chevy placed a vortex or mini tornado within the combustion chamber to efficiently blend gas and air together. Vortec engines are the base engine used in all Chevy cars and trucks and come in a variety of horsepower and torque ratings. During 1997 Chevy still had a big block engine, the 454 cubic inch.

What kind of engine is in Chevy 4.3?

Cylinders: You can find 4.3 engines for sale in six-, eight-, and twelve-cylinder versions. Fuel type: You can choose between gasoline, diesel, and hybrid engine types. You will want to make sure that you find an engine that’s designed to work with your existing fuel system.

What kind of car is 94 Chevy Silverado?

123 people found this helpful. My 94 Chevy Silverado was also sputtering, backfiring, missing etc…

What should I do about my 1994 Chevy Silverado?

My 94 Chevy Silverado was also sputtering, backfiring, missing etc… I changed the fuel filter to no avail, tried several things to get it to run smooth but nothing helped’ until a friend of mine who used to have his own shop told me about a memo he had received years ago dealing with this identical problem. here’s what worked for me!

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 causes hesitation and stumbling in a 1990 Chevy c1500?

An expert that got 10 achievements. Re: 1990 chevy c1500 hesitation and stumbling during… Based on what you said, I would say the engine is starving for fuel. The computer has to be disabled to set timing – there should be a procedure for that. I would start with checking fuel pressure at the throttle body.

What kind of gas does a 1997 Chevy truck use?

1997 chevy c1500 WT with 4.3 . getting harder to re crank.. Only driveable with both stop revving to keep it going. And that still doesnt work well. Work ive done. New cap and rotor. Cleaned…. Exh gas.

Why does my GMC Truck die at idle when warm?

So I wasn’t suspicious of fuel pressure, then later checked it and I have a steady 10psi from the moment I turn the key until a few seconds after it dies so the fuel pump is good. It runs strong and is fine until I idle. This happens only when the engine is warm and last time I checked it never went into closed loop.

Are there any problems with the Chevy 4.3 engine?

Once you have ruled out all the basics, you can go back to what the Chevy 4.3 engine is known for: bad idle air control valves and throttle control switches. This article was written by a professional writer, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

What to do if your truck acceleration is sluggish?

Re: truck acceleration problem, sluggish take off, loss… The first thing you do when the check engine light comes on is take it to an auto parts store and have the computer scanned for codes. Then decide if the codes are something you want to tackle or have a shop fix it.

What causes a Chevy 4.3 engine to stall?

Lack of oil will cause a knocking sound in the engine, stalling, poor acceleration and eventually engine break down. Lack of transmission fluid, battery fluids, radiator and cooling system fluids can all cause symptoms that mimic bad idle air control valves and throttle control switches.

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’s the problem with my Silverado 4.3 V6?

2007 Silverado 4.3 V6 -39,000 miles…no engine or tranny mods. No exhaust. I do have a K&N air filter that I just cleaned. I don’t think I have that MAF sensor on my intake like the more expensive trucks do. My problem seems to be a lack of power, like it just doesn’t want to go (V6 jokes aside).

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 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)

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.

Where does the knocking noise come from on a 4.3 Vortec?

If a knocking noise, piston or crankshaft related problem. Attached is a web site that you can listen to a piston slap which is a known issue for your 4.3. Listen to the noise and see if it sounds similar to your problem. A piston slap will generally sound as though it is coming from the central area of the engine.

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.

How did Chevy come up with the 4.3 engine?

Back in the late 1970s when everyone was worried about the “gas crunch,” Chevy needed some smaller engines in a hurry, so it created a new family of junior-sized V6s by chopping two cylinders off its existing V8s. This enabled GM to shorten the development process dramatically because it was able to adapt a proven design.

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.

Why do I hear a clicking noise when I Turn On 4 wheel drive?

The front drive shafts and wheels are not propelling the vehicle forward but simply coast along, hence the driver not hearing any dubious clicking sounds in 2H but only when the 4H mode is engaged. The easiest method of detecting the bad CV is to drive the vehicle with 4H mode selected for a short while.

What causes a noise when you brake on a Chevy?

Brake Chatter: Warped or improperly finished rotors will cause this noise. Brakes that Grab: If there is oil, brake fluid or grease on the pads, they will slip and then grab hold. You may feel your Chevy jerk when you brake. Check your pads for any type of contamination.

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. …

What’s the clicking sound on a GM Truck?

When I have heter on and it is clicking, if I push the REC button it stops, but in that position, if I turn the heater/fan off the clicking starts again for the 30 sec.? Anyone have any imput on this. Thank you in advance …….Sherrie

What causes a bad gas gauge on a Chevy truck?

A poor ground or loose connection to a gas gauge is just as likely to cause problems as loose or dirty battery cables assuredly will with your starting system.

Why does my 4L60E make a horrible noise?

Horrible noise in 4th and feels like the brakes are on: overrun clutches are applying due to a cracked or leaking forward piston. Overrun clutches will be worn out after 30 seconds of this behavior. Car can be safely driven in D. Transmission must be removed and rebuilt.

What kind of noise does a Chevy 4.3 make?