Why does my car make a rattling noise when I first start it?
One common problem that will cause a rattle at idle is a failing hydraulic valve lifter. The lifters are small parts that open and close the engine valves, activated by oil (hydraulic) pressure. If you hear a “clack-clack” kind of rattle when you start your car’s engine, it could be a sign of piston slap.
Why is my Toyota making a rattling noise?
What are common reasons my Toyota Corolla engine rattles? While there are a variety of reasons your Toyota Corolla is rattling, the most common 3 are the ball joints, struts or strut mount, or a problem with the sway bar links.
Why does my car rattle on cold start?
The sound can either be from a hydraulic valve lifter, or piston-to-cylinder wall clearance. As the engine warms, the clearances change and get tighter and noises will usually disappear. The use of full-synthetic engine oil can in some cases quiet the cold start up engine noises.
When I rev my engine I hear a rattle?
Most people call this a pinging or rattling sound. This noise is caused by an air/fuel mixture in the engine cylinder being ignited prematurely by the heat of compression as the piston is moving up on the compression stroke. And that’s also why you hear the pinging and rattling noises.
Why do I hear a rattle in my car?
If you notice a rattling noise coming from underneath your vehicle, a bit like a box of stones being shaken, this could be a sign that you have a problem with your exhaust system. This sound is often a warning sign of a faulty catalytic converter, and if this is the case, you may need to get a new one.
Is it normal for a Toyota Venza engine to be noisy?
This is very normal for this engine. They tend to be noisy. Some are considerably worse than others, some are quieter. They all have it to an extent. If your Venza is a 2010, then the TSB I am referring to does not apply anyways. And even if they do it anyways, it’s not likely to make much of a difference.
Why does my VVT rattle when I start the car?
In certain cases, the VVT gear housing and sprocket could separate and result in the engine stopping while the vehicle is being driven, increasing the risk of a crash. Toyota theorized that the condition could be related to an engine noise issue at start-up being investigated on certain engines.
What to do about engine rattle in Toyota?
Please try again later. This Video shows an Alternate Method for Solving the Engine Rattle Noise found on some 2008-2011 Toyota Highlander, RAV-4, Camry, Sienna and Venza. This Alternate Solution consists on Installing an Engine Pre-Lube System to provide Oil Pressure to the Engine before Starting the Vehicle.
When did my engine light come on on my Venza?
My Engine Light & AWD came on this morning around 6:30 am on my way to work 5 miles away. I went out to lunch to … read more Vocational, Technical or Tra… C only please.. We have worked on several issues togather in Doug C only please. Hi Doug. We have worked on several issues togather in the past.