the a/c pump could be loose.check to see if the bolts are tight.
Pipes make a knocking sound when the water is turned off due to a phenomenon called water hammer. This happens when the flow of water is suddenly stopped, causing a pressure wave to travel through the pipes and create the knocking noise.
open the trunk and let your spouse out.
i don't know if it helps, but my '99 legacy outback was making a knocking sound. turned out that the oring on the brake caliper pin had worn out, and the pin was kind of knocking around.
A knocking sound when the key is turned on can be caused by several issues, most commonly related to the engine or electrical system. It may indicate a problem with the starter motor, such as a faulty solenoid or a weak battery that struggles to engage the starter. Additionally, loose or damaged components in the engine or transmission can create knocking noises. It's advisable to have the vehicle inspected to identify the exact cause and prevent further damage.
A hole in the muffler would cause a knocking sound in your muffler. A loose exhaust pipe can also cause a knocking noise.
The ac compressor is shot. Usually what your hearing is a bearing that is moving around.
Pipes knock when water is turned on due to a phenomenon called water hammer. This happens when the flow of water is suddenly stopped or redirected, causing a shockwave that creates vibrations in the pipes, resulting in the knocking sound.
Driving at 50mph or above what causes a loud knocking clicking sound during acceleration?
Yes
A 97 Mitsubishi Eclipse will produce a knocking sound if the ignition time is set incorrectly. This results in the valves opening at the wrong time.
the sound will get louder until you cant ignore it
A seized gear can cause a knocking sound on a 1987 Nissan 5 speed transmission. A blown gasket can also cause this sound.