Why does my car rattle when I turn on the air?
A rattling could indicate it’s time to replace your worn out compressor clutch (and maybe even the entire AC compressor). Idler pulley. An air conditioner pulley making noise can also come from failing bearings. These typically start when your AC compressor engages.
Why does my car engine rattle when I accelerate?
As the engine spins inside, the timing belt or chain needs some guidance, especially as the engine revs climb. Engine rattling when accelerating can be a symptom of a problem with this timing belt. There are guides for engines with a timing chain. Both vehicles with a timing belt or a chain have a tensioning system to keep it snug and centered.
Why does my belt rattle when in idle?
Another is the serpentine belt tensioner, pulleys and/or condition of the belt. If the belt is stretched to its limit or if one of those pulleys is binding the tensioner will rattle against its stop. So have a shop inspect all of your shields and your belt & belt system.
Where does the rattling sound come from in a car?
It does not appear to get louder with higher RPMs (e.g., as vehicle is moving). Not 100% sure on exact source, but I think it is coming from near the engine – on the left side where a rotating belt is mounted (it does sound louder when hood is popped).
What to do if your AC rattles when you turn it on?
If you hear a rattle in your car, have a mobile technician from YourMechanic inspect the cause of the sound. The most popular service booked by readers of this article is AC is not working Inspection. Yourmechanic’s technicians bring the dealership to you by performing this job at your home or office 7 days a week between 7AM-9PM.
Why does my car make a rattling noise when I start the car?
” If your car engine is making a rattling noise on startup, idle or when accelerating you could have a faulty serpentine belt tensioner, a loose bolt on the mounting bracket, loose timing belt, rusty or broken flexplate, faulty harmonic balancer, loose fan blade, engine knock (pinging) or low levels of engine oil.
Another is the serpentine belt tensioner, pulleys and/or condition of the belt. If the belt is stretched to its limit or if one of those pulleys is binding the tensioner will rattle against its stop. So have a shop inspect all of your shields and your belt & belt system.
If you hear a rattle in your car, have a mobile technician from YourMechanic inspect the cause of the sound. The most popular service booked by readers of this article is AC is not working Inspection. Yourmechanic’s technicians bring the dealership to you by performing this job at your home or office 7 days a week between 7AM-9PM.
Why are my heat shields rattling under my car?
These heat shields are made of thin pieces of metal, and are placed between these components and the underfloor of the vehicle. They have become a common source of rattling noises under the car. Over time, heat shields can rust out or become loose and get detached from their mountings.