Strange sound coming from under the hood.
How to Identify and Fix Common car Problems ?
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A car engine noise that sounds like popping can indicate several problems, including worn or dirty spark plugs, a clogged fuel filter or dirty air filter, bad ignition wires, or a problem with the distributor cap or rotor.
If you hear a rumbling/humming noise as you idle and when you accelerate, the noise gets louder (like an airplane taking off) this is most likely a wheel bearing issue. What it could mean: This wheel bearing noise is often mistaken as engine noise.
Perhaps your battery`s dead, or your alternator, which charges the battery, isn`t working correctly. If the source of the clicking is electrical, the starter (a small motor energized by the battery that gets the engine running) doesn`t have enough juice to stay powered.
Bad piston rings and valve seals: Whenever you hear a ticking noise in your Lexus, it could be that something is wrong with the pushrods, valves, and pistons. If one of these components wears out, gets damaged, or goes bad, you might start to hear this ticking sound.
A good engine should roar, but not too loudly. If you feel your car is more noisy than usual there could be an issue with cylinder compression. If there is an uneven air-fuel ration in the cylinder, combustion can occur at higher or lower rates than normal.
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As far as the tire noise, the tread needs to be inspected for a possible chopping pattern. This can also sound like a wheel bearing issue as well. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the tools and expertise to inspect both noises and make the appropriate repairs.
If the hood was having a problem closing and won’t open now, it’s typically an indicator that the hood latch itself is damaged or simply needs to be lubricated. The best way to have this issue repaired or diagnosed is to contact a professional mechanic and have them complete a door will not open inspection. This will allow them to determine why the front hood on your 96 Ford Explorer is locked and recommend the right repairs.
There are a number of things that could make an engine noisy when starting up. Depending on the specific type of sound you are referring to, this will determine how to properly diagnose. If there is a bit of a hissing sound, this may be a sign of a vacuum leak. If this is more of a shrieking sound, this may be a sign of a worn out or out of adjustment serpentine belt. If there is a bit of a howling or growling sound, this may be a sign of a worn out or low on fluid power steering pump. A rattling or pinging sound may be caused by an ignition problem. An engine can ping (or knock) due to an improper combustion process. A "spark knock" is the result of combustion occurring too early. Early combustion can occur from carbon buildup inside the combustion chamber, a lean air/fuel mixture, and advanced ignition timing (spark plug firing too soon). A clattering type sound may be a result of improper lubrication in the valve train which could be a more serious problem and should be addressed as soon as possible. I would suggest having an expert from YourMechanic come to your location to diagnose and inspect your vehicle to ensure everything is in proper working order.