Why is my car rattling when its idling?
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.
What does it mean if your car rattles?
The rattling noise means that something isn’t right with the way your wheels are attached to the car. For example, a lug nut may have come loose and started rattling as the wheel turned around. Have your tires and wheels checked as soon as possible.
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.
Why does my Lexus V6 rattle when I cold start the car?
The first cold start of the morning some Toyota and Lexus V6 owners, especially those who have the 2.5L or 3.5L V6, notice a loud rattle the first few seconds after startup. The noise disappears after the car builds oil pressure. The most common cause is the variable valve timing camshaft gear assembly leaking down oil pressure as it sits.
Why does my car rattle when I start the engine?
Note: The Rattle that is caused by a faulty VVT Cam Gear disappears within a few seconds after the Engine Starts, it shouldn’t be confused with a rattle caused by clogged Hydraulic Lifters. A Pre-Lube System can be added to any Vehicle even if it doesn’t have the problem these Vehicles have.
What should I do if my car won’t idle?
Step 8: Press the accelerator pedal to the floor and count for 10 seconds and then release the pedal for 10 seconds. Do this 2 times Step 9: Quickly press the accelerator pedal to the floor and then release three times. Step 10: Start the engine. If it does not idle correctly after this procedure, you will need to clean the throttle body.