Engine is making a Squeaky sound? 2007 Nissan 350Z

ANSWER : Hello – that squeak sounds like a bearing to me – alternator, serpentine belt idler pulley, or possibly the water pump. Time for the stethoscope to narrow it down precisely! I recommend a enngine noise inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

ANSWER : Hello, thank you for writing in. Tracking the rattling noise will have to start by observation. Take a good look at the engine while it runs and try to get a better idea of where exactly in the engine it is coming from. Common places are at the belts, interior of the engine, any components that are mounted onto the engine, and the flex plate to the transmission (at the back of the engine). You may also want to check your oil level and quality, as poor oil conditions will cause lifter and valve problems. If the belts seem to be making the noise. Turn the vehicle off and inspect the pulleys. For more diagnostic help, contact our service department to schedule an appointment.

ANSWER : Hi there. A binding accessory could be causing your concern. Simply remove the drive belt and recheck. If the problem goes away, this eliminates the fear that there could be something goin on with the engine or transmission internally. It sounds like this could be the water pump. If the water pump is binding or leaking, it can cause the belt to slip and make it seem like the engine gets bogged down. Usually a visual inspection quickly uncovers the leak. However a properly executed pressure test is the best way to uncover leaks, both current and potential. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a car is making a noise inspection.

ANSWER : Usually squeaking noises are associated with the drive belt. I was unable to access the You tube Video that you tried to link, but I’ll speculate that you are hearing a slipping serpentine belt. If the automatic tensioner has started slipping, it can make a pretty annoying squeak. Other possibilities include any of the belt driven accessories like the alternator or AC compressor. If the bearings start to fail, they will often start with a squeak. whtaever it is you can have it checked out at your convenience by contacting Your Mechanic. They can send a technician to your home or office to check out your squeaking noise and let you know what it is going to take to fix it.

ANSWER : Hello – the P1346 problem code you have indicates a camshaft timing problem (variable valve timing to be specific), and is at least part of the cause of low power. The cams are out of time, relative to the crankshaft. The hissing sound from the throttle body area is likely an air leak from a hose, or some other portion of the air intake. The tapping sound could be a variety of faults, worn/leaking hydraulic valve lifter, worn cam, piston slap, etc. I recommend a timing belt service to get the cams properly timed, performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

ANSWER : Hey there. The first noise you described sounds like valve lifter noise. You will hear this sound if the engine is low on oil. Check the oil level and add if necessary. The lifter noise is not heard at higher RPMs because the oil pressure is higher as the engine speed gets higher. If you have high mileage, you could benefit from the next higher viscosity oil. For example: a car that originally called for 5w30 when the mileage gets up past 100K, you can use 10w30. The reason is because as bearings wear out it becomes harder to maintain oil pressure and a slightly thicker oil can help get some of that oil pressure back. I’m not sure what noise you could be describing, but there should not be rocks in any engine pipes. It is possible you have a cracked exhaust pipe or something else loose that is rattling against a pipe. A certified technician from YourMechanic can come to your car’s location to inspect the car noise and make the correct repairs.

ANSWER : The rattle is most likely coming from a faulty motor mount on the passenger side. The motor mount allows the engine to vibrate and hit metal to metal. Your vehicle should be put up on a lift while in park, and the rattle inspected. Replace the motor mount if needed. Check all other mounts as well and replace if needed.

ANSWER : The humming noise could be the air filter being dirty, the drive belt slipping, or the air conditioning clutch is slipping. It is safe to drive your vehicle to the appointment as long as there is no smells or loud noises other than the humming noise. Only a shop or a certified technician can give out a warranty for the replacement parts.