Noise coming from fuel tank….some time while running get blast noise from silencer….spark plug are new… 2011 Chevrolet
Spark plug new checked fuel pump for pressure roughly its ok when doing ignition on…
Whsts the reason…just replace fuel filter…old one was dirty whrn taken out
Whsts the reason…just replace fuel filter…old one was dirty whrn taken out
My car has 15 miles.
My car has a manual transmission.
Experienced mechanics share their insights in answering this question :
Hello – I think you still have fuel supply issues – perhaps a leaky injector., or a weak fuel pump (you mention it is noisy). Backfiring is a symptom of fuel supply problems. Check for problem codes, whether the Check Engine light is on or not – these can be instructive. I would also check fuel pressure while running. I would recommend an inspection of the fuel and ignition systems by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
The reason is that bad spark plugs can lead to a ticking noise engine. When spark plugs are not working properly, they may not ignite the air-fuel mixture in the combustion chamber effectively. This situation can cause misfires, resulting in a ticking or tapping noise as the engine runs.
The most common causes of misfires are worn, improperly installed, and mishandled spark plugs, malfunctioning ignition coils, carbon tracking, faulty spark plug wires and vacuum leaks.
A clogged or failed exhaust gas recirculation or crankcase ventilation valve or faulty oxygen sensor can send the wrong signals to the computer and cause misfires.
Fuel-related misfires can be caused by too little fuel. Fuel-related misfires can be caused by incorrect atomization of the fuel by the injector. Fuel-related misfires can be caused by bad fuel. In some cases the customer will not bring the vehicle in with an initial problem, but when additional issues occur.
Engine misfires have a very distinct sound that can make them easier to diagnose than other car problems. Popping, sneezing, or banging sounds coming from the exhaust are a sign of a misfire. This sound comes from the unburnt fuel leaving the cylinder that combusts through the exhaust system.
The most common descriptions of an engine misfire are a sound like a popping, sneezing, banging, chuffing, or a backfire, usually when the engine is anywhere between 1,500 – 2,500 rpm.
Worn or fouled spark plugs are one of the most common causes of engine misfires. These small but crucial components deliver the spark that ignites the fuel in your engine. If they`re not working properly, your engine won`t be firing on all cylinders.
Engine misfires happen when one of the cylinders does not produce sufficient spark or compression and lack of fuel. It could involve more than one cylinder. It can be caused by a faulty spark plug, fuel injector, ignition coil and or worn cylinder.
Even a dirty MAF sensor can cause a lean code and/or misfire to occur. The engine may be stalling because it isn`t getting enough throttle opening.
If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS. You don`t want to wait to get this checked out! If the idling appears off, it means the computer is unable to identify the fully shut throttle.
A faulty fuel pressure regulator may result in engine misfires, reduction in power, poor acceleration, and a decrease in fuel efficiency. That said, the symptoms can also take place owing to other mechanical issues.
Vacuum leaks, especially those that are confined to one cylinder, will cause the engine to idle unevenly and possibly misfire. This is because the vacuum leak allows additional air to reach the affected cylinder, diluting its air/fuel mixture.
The rod bearings facilitate smooth piston movement, but they can become worn out or come out of position over time. As the bearings wear out, the pistons will start to rattle against the crankshaft, creating a very similar knocking sound.
What Are the Symptoms of Detonation? Detonation—sometimes called knock or pre-ignition—is a pinging sound that can sometimes be heard during acceleration and throttle tip-in. Unlike normal exhaust noise, detonation is a higher-pitched, raspy note that emanates from the engine compartment.
A misfire results when explosives fail to detonate as planned during a mine blast. Accidental detonation of misfires is a frequent cause of personal injury, equipment damage, and lost production.
The OBD II system detects misfires on most vehicles by monitoring variations in the speed of the crankshaft through the crankshaft position sensor. A single misfire will cause a subtle change in the speed of the crank.
Yes. While the damage may seem small initially, the longer you drive with a bad oxygen sensor, the worse the damage will become. Eventually, you may experience rough idling, poor acceleration, engine misfires, an illuminated check engine light, and failed emission tests.
There are a few common symptoms of the P0301 code, and they include an illuminated or even flashing check engine light, engine running rough, rough idle, lack of power, decreased fuel economy, and smell of fuel from the exhaust.
Constant misfires, rough idling, and poor acceleration all can be associated with various different problems but together they can be one of the common symptoms of worn piston rings.
However, most misfires dissipate, and your engine regains its normal speed after a second or two. But even a single misfire is usually a sign that something else is wrong and that more misfires will likely occur in the future.
Spark plugs.
If your vehicle is old and has high mileage, you may often hear ticking sounds. Worn-out or misaligned spark plugs can cause these. If the spark plug is not in position, exhaust fumes can bypass it and make the engine tick.
Spark plugs.
If your vehicle is old and has high mileage, you may often hear ticking sounds. Worn-out or misaligned spark plugs can cause these. If the spark plug is not in position, exhaust fumes can bypass it and make the engine tick.
An engine with low oil or low oil pressure can make a ticking noise due to a lack of lubrication. If you are low on oil, it may indicate either oil consumption or an oil leak, both of which should be addressed as soon as possible. If you have low oil pressure, you will likely get a warning on the dash.
An engine ticking noise can happen for many reasons, like low engine oil levels, bad hydraulic lifters, or expensive exhaust manifold leaks. And it might be difficult to spot and fix these issues on your own. That`s why you need the help of an expert auto repair service like RepairSmith.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Noise coming from fuel tank….some time while running get blast noise from silencer….spark plug are new… 2011 Chevrolet
ANSWER : Hello – I think you still have fuel supply issues – perhaps a leaky injector., or a weak fuel pump (you mention it is noisy). Backfiring is a symptom of fuel supply problems. Check for problem codes, whether the Check Engine light is on or not – these can be instructive. I would also check fuel pressure while running. I would recommend an inspection of the fuel and ignition systems by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
I have a truck that won’t run and is not getting gas to the engine. Fuel pump is running, have a new filter and new fuel pressure
ANSWER : Hi There,
It sounds like you may have a clogged fuel injector or potentially a faulty injector that is fried internally. I would suggest testing them if you have access to a multi meter. Disconnect the injector from the electrical connector and set your multi meter to Ohms mode and measure the resistance of the injector. After testing all injectors, compare the resistance. They should be the same or very close. If they are not, they will likely need to be replaced.
It sounds like you may have a clogged fuel injector or potentially a faulty injector that is fried internally. I would suggest testing them if you have access to a multi meter. Disconnect the injector from the electrical connector and set your multi meter to Ohms mode and measure the resistance of the injector. After testing all injectors, compare the resistance. They should be the same or very close. If they are not, they will likely need to be replaced.
Not getting enough fuel car will not run right. It stalls when you give it gas and stalls when it’s running. It’s a 1984 Ford Escort.
ANSWER : Hi there, thanks for writing in. Several early 80’s Ford’s swapped from carburetor to fuel injected engines; including your ’84 Ford Escort. However, there were two different fuel systems available that year. If your Escort has the fuel injected engine, one item I’d check is the EGR valve or clean the throttle body.
Both systems impact fuel delivery into the engine and if they are dirty or clogged with excessive carbon build up, can starve the engine to create this type of issue. If it’s the carburetor version, the carburetor might need to be rebuilt, or may be an issue with float bowls inside the carb.
If you need assistance diagnosing the exact issue, feel free to contact one of our professional mechanics to complete an engine is stalling inspection firsthand at your own location.
Car runs better if I unplug fuel injector 8 but makes a ticking noise and runs sluggish if it’s connected 2006 Ford Mustang
ANSWER : Hello – your symptoms suggest a failing injector . It appears to be leaking when it’s plugged in, as well as noisy. Check for problem codes relating to a rich mixture,, although it’s possible that the oxygen sensors for that bank of cylinders is leaning out the other 3 on that side. This would create rough running for sure. That would explain the popping (probably backfiring or misfiring at least on the lean cylinders). I recommend a misfiring inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.
Just replaced my fuel pump but its not getting any power tested fuel pump relay and fuel fuse both good tested the wires all good.
ANSWER : You need to look at the theft light on dash to make sure it comes on and goes off when you turn the key to the on position. If light comes on and stays on then your theft system is causing the fuel pump to not be engaged. I recommend you check the theft system and then scan the computer for theft system codes. You may need to reprogram the keys to work or you have an bad sensor for the ignition key in the steering column.
New front pads & rotors (2mths) and hear a grinding noise when coming to a slow gradual stop. What could be causing this?
ANSWER : Hello, thank you for writing in. The last technicians that worked on your vehicle are not wrong. There are certain types of brake pads that will make a squealing noise when the brakes are applied. These are typically made from a metal composite material. You can always research the brand they put on and find out more about the brake pads. This would give you a good idea of what you should reasonably expect. Are the brakes exhibiting any other types of symptoms? If there is any sponginess in the pedal, shaking or vibrating, hard stops, or other symptoms then there may be more cause for concern. In situations like these, if you are expecting to drive the vehicle a longer distance in the near future, it is recommended that you get a second opinion. Our technicians can dispatch to your home or office.
Installed new delphi fuel pump and fram fuel filter. still no pressure on fuel rail valve and wont start. 2003 Chevrolet Tahoe
ANSWER : Hi there – I suspect you have weak power getting to the fuel pump. I would first check the voltage coming out of the fuel pump relay. If the contacts in the relay are burned, you will not get reliable current flow to the pump. Check the fuel pump ground as well (voltage drop across the ground, not just continuity). I recommend a fuel system inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
My 01′ Tahoe want stay running when the MFS is plugged in I’ve put a new one on and new plugs too but it’s doing the same thing
ANSWER : The mass air flow sensor (MAF) uses a heated wire to determine the amount of air entering the engine. It then relays this information to the powertrain control module (PCM), where it it used to determine fuel injector control. There are three wires going to the MAF on your vehicle: ground (black/white), power (pink) and the return signal to the PCM (yellow). A problem anywhere in this circuit can (including the PCM itself) can cause the problems you’re having. I recommend having a professional, such as one from YourMechanic, diagnose and repair the problem for you.
