Chevy impala loud engine

Chevy impala loud engine

Chevrolet Impala owners have reported 12 problems related to loud engine noise under the engine and engine cooling category. The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Chevrolet Impala based on all problems reported for the Impala.

Tl- the contact owns a Chevrolet Impala.

2012 Chevy Impala has a rattling noise

The contact stated that at 81, miles, the catalytic converter had fractured and was replaced at patriot Chevrolet Buick GMC dealer, fort campbell blvd, hopkinsville, ky However, the failure recurred. The contact stated that while driving there was a loud noised coming from the motor and exhaust fume emitted into the vehicle cabin.

The contact stated that her husband noticed the catalytic converter was fractured. The contact called the same dealer and later taken the vehicle to the same dealer and was informed the vehicle was out of warranty for the repair and did not serviced the vehicle. The contact called the manufacturer and made aware of the failure and the contact was informed to take the vehicle to a GMC dealer for a diagnostic testing and provided a case number: The contact later taken the vehicle to an independent mechanic and was diagnosed the the catalytic converter was fractured.

The technician welded the fracture. The vehicle was repaired. The failure mileage wasSee all problems of the Chevrolet Impala. The contact owns a Chevrolet Impala. The contact stated that while driving at various speeds, a loud roaring noise was heard, the engine vibrated, and when depressing the on-star button a clanking metal noise was heard under the vehicle. The engine warning light illuminated. The vehicle was taken to rincon Chevrolet inc.

Located at GA highway 21 s, rincon, GA where it was diagnosed with a crank valve failure, which was allowing to much air into the engine. The contact stated that the vehicle was not repaired due to the dealer was waiting the crank valve parts. The failure mileage was approximately 77,You may be entitled to a refund, replacement or cash compensation.

Their services are at no cost to the consumer. Get free Lemon Law help! Click here for more information. All vehicle manufacturers are required by U.

This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear. This preliminary informational bulletin provides repair information to correct a customer concern of vibration felt through the steering wheel, drivers and passengers seats or floor while vehicle in drive at idle. This preliminary information bulletin provides information for diagnosing a power steering fluid leak at the fluid reservoir.

This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. This preliminary informational bulletin provides a procedure to replace the steering column or repair as necessary to correct conditions of Groan, Squeak or Rubbing Type Noise When Turning Steering Wheel.

This technical bulletin provides a procedure to replace the power steering fluid cooling pipe and engine oil cooling pipe for concerns of power steering lines or engine oil lines leaking due to This preliminary informational bulletin provides diagnostic and repair information to correct a customer concern of IPC gauges sweep, loss of power steering assist, intermittent no crank, reduced engine power and multiple U-codes. This preliminary informational bulletin provides repair information to correct a customer concern of vibration felt through the steering wheel, driver's and passenger's seats or floor while vehicle in drive at idle.

This technical bulletin provides a procedure to replace both front strut mounts due to a gap between the bearing lower housing and top mount body. This Preliminary information communicates diagnostic assistance and repairs for specific driveability concerns that can be caused by the intake rocker arm oil control solenoid.

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer? This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts are being performed on customer?

This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. This Preliminary Information communication provides information to the technician about a rattle coming from the rear of the vehicle when driving over medium sized bumps, it may sound like a loose spare tire or suspension component.

This informational bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure, when diagnosing vibration concerns. This informational bulletin was created to aid the technician in diagnosing the difference between a shock or strut that has a fluid residule from a possible external source from a leaking shaft seal.

This informational bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak. This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair. This informational bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.

This informational bulletin provides information on installing the correct tires for vehicles with the condition of under hard acceleration at higher speeds, the traction control light will flash. This Preliminary Information communication provides information to the technician about vehicles with a spongy brake pedal after a hydraulic brake component was disconnected or replaced. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp.

Technician may find Diagnostic Trouble Code P This informational bulletin provides information on the proper ways to remove or replace the key cylinder covers due to some vehicles having the key cylinders hidden during the time of delivery. If this condition affects your vehicle you may noticed the CNG odor or hear a hissing sound. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.

This Preliminary Information communication provides the technician with steps to diagnose and repair the vehicle if the ABS lamp is on with Diagnostic Trouble Code C C or unwanted traction control activation. This preliminary informational bulletin provides information regarding the normal characteristic of instrument panel red brake light intermittently comes on.

This informational bulletin explains a normal condition for what and how the drive line can clunk. This Preliminary Information communication provides information to the technician about vehicles that when attempting to start vehicle "No Fob Detected" message is displayed.I just bought a Chevy Impala the other day and I'm starting to notice this little rattling noise when I start my car and also when I'm accelerating.

Someone told me it could be the catalytic converter, but I'm not losing any power at all. So, they said it could be the heat shield that goes around the converter. If someone out there has went through this problem or has any advice I'd greatly appreciate it.

Thanks in advance! This would depend on if it is coming from engine or not,if it is from engine,it may be bad lifter or valve rattle. Well when I bought the car from the dealer he said it had something loose by the exhaust, but u know how car salesmen are, they tell u anything to get your money.

But it sounds like to me the noise is coming from underneath the car. If sound is not at engine,check the catilac converter or the pan that protects it,some times they will give a little rattle.

FordNut answered 4 years ago. TST is right on, just let it cool down a while before you start wiggling things under the car. Cats get hot REAL hot. Yea that's what my uncle said who runs a mechanic shop. He said that if it's not losing power it's not the catalytic converter, it's probably the heat shield that goes around the converter. So, Monday I'm gonna go to his shop hook it up to diagnostic machine and then hopefully just lift it up and tighten the bolts that go on the converter cover.

How to Fix a Loud Tapping Noise on Chevy Impalas

I'll repost and keep everyone updated. I love this forum, I'm sooo happy to have u guys in my life :. So are u saying that the noise isn't coming from there? Or are u saying it is, but the fix won't be as easy as I thought? We are having the same problem with our Impala.The Chevrolet small-block engine is a series of V8 automobile engines used in normal production by the Chevrolet division of General Motors between andusing the same basic engine block.

Engineer Ed Cole is credited with leading the design for this engine. The Generation II engine is largely an improved version of the Generation I, having many interchangeable parts and dimensions. Later generation engines have only the rod bearings, transmission-to-block bolt pattern and bore spacing in common with the Generation I and II engines.

Introduced as a performance engine inthe went on to be employed in both high- and low-output variants across the entire Chevrolet product line. Over the years, every American General Motors division except Saturn and Geo used it and its descendants in their vehicles. Finally superseded by the Generation III LS in the and discontinued inthe engine is still made by a GM subsidiary in Mexico as a crate engine for replacement and hot rodding purposes. In all, oversmall-blocks have been built in carbureted and fuel injected forms since as of November 29, The small-block family line was honored as one of the 10 Best Engines of the 20th Century by automotive magazine Ward's AutoWorld.

In February a Wisconsin businessman reported that his Chevrolet C pickup had logged over 1 million miles without any major repairs to its small block V8 engine. Source: The Flint JournalFebruary 17, It quickly gained popularity among stock car racers, nicknamed the " Mighty Mouse ", for the then-popular cartoon character, later abbreviated to "Mouse".

2004 Chevy Impala Strange noise when accelerating

The was adopted by other Chevrolets, replacing the V8s. Installed in everything from station wagons to sports cars, in commercial vehicles, and even in boats and in highly modified form airplanes, it is the most widely used small-block of all time. Though not offered in GM vehicles sincethe series is still in production at General Motors' Toluca, Mexicoplant under the company's " Mr. Goodwrench " brand, and is also manufactured as an industrial and marine engine by GM Powertrain under the " Vortec " name.

Of the three engines in this family, two of them, the and thehave gone down in automotive history. The first of this family was theintroduced in Cole's design borrowed the valve train design scheduled to be used at the time in the Pontiac V8.

Internal GM rules at that time were that once an automotive division had introduced a technological innovation no other GM division could use it for a period of two years. The stud mounted independent ball rocker arm design patented by Pontiac engineer Clayton Leach was scheduled for introduction in the Pontiac V8. GM forced the Pontiac division to share its valvetrain design in Chevrolet's new V8 inso that in the end both engines were introduced the same year with the same valve train design.

The reason this happened is that Buick division lobbied the corporation to hold back Pontiac's release because it affected Buick's release of the new Buick V A shortcoming of the was its lack of any provision for oil filtration built into the block, instead relying on an add-on filter mounted on the thermostat housing, and that was an "option only".

In spite of its novel green sand foundry construction, the '55 block's lack of adequate oil filtration leaves it typically only desirable to period collectors. The first motors used the stock blocks. However, the overbore to these blocks resulted in thin cylinder walls. Future blocks were recast to accept the 3. This was the third U.

chevy impala loud engine

Besides being available in the Chevrolet line, it was optional in Checker Taxis beginning in All s had large 2. Pistons used with the share the same pin height as the but retaining the s bore size prior to it was possible to stroke a into a where aftermarket pistons had to be used.

All engines in this family share the same block dimensions and sometimes even the same casting number; the latter meaning engines were of the same block, but with different strokes e.Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. Average rating from customers who received a Engine is running louder than normal Inspection.

Learn More.

NHTSA — Engine Problems

An engine that is suddenly running louder than normal is usually crying for help. In the majority of cases an underlying problem is causing the engine to rumble. Problems can range from something simple like dirty spark plugs to the more serious failing muffler or catalytic converter. While some of the issues that can cause a louder than normal engine are easy fixes, many problems are much more extensive and can quickly damage other systems, resulting in an expensive repair.

While a number of different systems can cause a vehicle to run louder, most of the time it is rooted in the exhaust system.

The exhaust system is responsible for collecting exhaust gases from the cylinder head. This is accomplished via the exhaust manifold, which basically functions as a big funnel diverting exhaust gases away from the engine cylinders.

The exhaust gases are released through a part called the front pipe and from there they travel to the catalytic converter. The catalytic converter removes the harmful elements of the gases such as hydrogen monoxide and carbon monoxide.

Finally, the exhaust gases exit the catalytic converter into the muffler. The mufflers main function is to reduce the noise levels of the engine. After the muffler, the exhaust fumes exit the vehicle through the tail pipe. A failing muffler should be repaired or replaced immediately as an exhaust system that is not working properly can lead to additional damage to the engine or catalytic converter. Failing Catalytic Converter: The catalytic converter is a key component of the exhaust system and if it is failing the engine will be louder than normal, will run rough and the smell of rotten eggs will be coming from the exhaust.

In most cases, a failing catalytic converter will also trigger the Check Engine light. As the converter fails it will no longer be able to burn off the unburned hydrocarbons in the exhaust, or break down the sulfur created by the engine.

This is what causes the strong rotten egg smell. Eventually the car will not run at all as the catalytic converter becomes totally blocked. Broken Tail Pipe: The tail pipe comes out of the muffler and exhausts the gases and fumes into the air. A rusted tailpipe will often develop holes or will completely fall off at some point. This will increase the noise levels of the car. Leak in Exhaust Manifold: The exhaust manifold collects exhaust gases from the engine.

If there is a leak in the exhaust manifold it can cause the engine to run louder, sputter and run unevenly. In most cases it will also trigger the Check Engine light. A cracked or leaking exhaust manifold can create bigger problems due to the hot gases that are escaping. They will often melt nearby plastic components. It is also possible for leaking exhaust fumes to find their way into the cabin of the car. Worn Seals or Gaskets: The exhaust system has quite a few seals and gaskets and if they are failing it can cause the engine to run louder, and sputter at times.

Over time, gaskets and seals will wear down and eventually have to be replaced. If this problem is not repaired it can end up damaging the exhaust manifold which will be a much more expensive repair. Malfunctioning Oxygen Sensors: The job of the oxygen sensors is to measure how rich or lean the exhaust gases are when they exit the combustion chamber. The computer in the vehicle uses this data to adjust the amount of fuel that is entering the engine. A failing or dirty sensor can send incorrect data, resulting in too much or too little fuel going to the engine.

This can result in a rough running engine that is louder than normal. Bad or Dirty Spark Plugs: Bad spark plugs can cause the vehicle to misfire which will make it run louder. Spark plugs provide the spark for igniting the fuel in the combustion chamber, if they are not operating correctly, the fuel is not completely ignited and the vehicle will misfire or sputter.

chevy impala loud engine

The plugs will need to be replaced or cleaned.When you push the accelerator, there is a strange sort of "winding up" noise coming out from under the hood on the passanger side. This has been going on for about 2 weeks. My husband says something is going to break soon and we'll know what it is! But that's not good enough for me! It almost sounds like a belt? But this morning we noticed the car is running pretty hot. It is degrees outside today, however.

Could it be the water pump? Do you. Yes it could be your water pump. If your water pump is leaking, some coolant will get on the serpentine belt and make it squeal when your engine is on. Check your pump for leakage and replace it right away if it's bad.

Don't keep driving the car if it's low on coolant because it will result in very expensive damage to the engine. Was this answer. Thx Renaud!

It wasn't the water pump. My husband went to replace it and he says it still looks brand new. We've solved the slight "overheating" problem.

He flushed the radiator. And now it's okay. However, the noise is still there and seems to be getting louder each day. We aren't driving it much. He says the noise sounds like it's either coming from inside the engine or the power steering pump. But wouldn't we have steering problems if the power steering pump was going bad?

I think it sounds like a belt but he's checked all belts and they are healthy. Another possibility is that one of the pulleys driven by your serpentine belt is slightly crooked which makes the belt rubs on the sides of the pulley resulting in squealing.

Also, it's possible that your belt is loose on the pulley either it's stretched or the belt tensioner is no good anymore. It's also possible that one of the components driven by the belt is on its last leg which includes, as you mentioned, the steering pump. Does it make noise when you turn left or right?

Have you checked the steering fluid level? Any leaks, either at the pump, or under the car at the pinion rack, boots, etc?The Impala was Chevrolet's popular flagship passenger car and was amongst the better selling American made automobiles in the United States. For its debut inthe Impala was distinguished from other models by its symmetrical triple taillights.

The Chevrolet Caprice was introduced as a top-line Impala Sport Sedan for model yearlater becoming a separate series positioned above the Impala inwhich, in turn, remained above the Chevrolet Bel Air and the Chevrolet Biscayne. The Impala continued as Chevrolet's most popular full-size model through the mids. Between andthe Impala was revised as a 5.

chevy impala loud engine

Inthe Impala was reintroduced again as a mainstream front-wheel drive car. During that time both versions were sold in the United States and Canada. The Impala name was first used for the full-sized General Motors Motorama show car that bore Corvette -like design cues, especially the grille. It was named Impala after the graceful African antelope, and this animal became the car's logo. Painted emerald green metallic, with a white interior, the Impala concept car featured hardtop styling.

Chevrolet small-block engine

Clare MacKichan's design team, along with designers from Pontiacstarted to establish basic packaging and dimensions for their shared General Motors "A" body in June.

The first styling sketch that would directly influence the finished Chevrolet automobile was seen by General Motors Styling vice president Harley Earl in October. Seven months later, the basic design was developed. ForGM was promoting their fiftieth year of production, and introduced anniversary models for each brand; Cadillac, Buick, Oldsmobile, Pontiac, and Chevrolet.

The Impala was introduced for the model year as top of the line Bel Air hardtops and convertibles. From the windshield pillar rearward, the Bel Air Impala differed structurally from the lower-priced Chevrolet models.

Hardtops had a slightly shorter greenhouse and longer rear deck. The wheelbase of the Impala was longer than the lower priced models, although the overall length was identical. Interiors held a two-spoke steering wheel and color-keyed door panels with brushed aluminum trim.

No other series included a convertible. The Chevrolet models were longer, lower, and wider than its predecessors. The tailfins of the were replaced by deeply sculptured rear fenders. Impalas had three taillights each side, while lesser models had two and wagons just one. The Impalas included crossed-flag insignias above the side moldings, as well as bright rocker moldings and dummy rear-fender scoops. The standard perimeter-type frame was abandoned, replaced by a unit with rails laid out in the form of an elongated "X.

A coil spring suspension replaced the previous year's rear leaf springs, and an air ride system was optional. The Ramjet fuel injection was available as an option for the Turbo-Fire V8, not popular in The Chevrolet Bel Air Impala helped Chevrolet regain the number one production spot in this recession year. The Chevrolet Impala was redesigned.

Using a new X-frame chassis, the roof line was three inches lower, bodies were two inches wider, and curb weight increased. Its tailfins protruded outward, rather than upward.

The taillights were a large "teardrop" design at each side, and two slim-wide nonfunctional front air intake scoops were added just above the grille. The Impala became a separate series, adding a four-door hardtop and four-door sedan, to the two-door Sport Coupe and convertible. Sport Coupes featured a shortened roof line and wrap-over back window. Standard were front and rear armrests, an electric clock, dual sliding sun visors, and crank-operated front vent windows.

A contoured hooded instrument panel held deep-set gauges.


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