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I have a Mazda CX7 (2008) and there is a loud whining noise coming from the rear of the car. The whining sound starts around 30mph and becomes a higher pitched sound towards 60mph. This is not related to acceleration as free-wheeling (out of gear) the whining sound continues. Can anyone provide any guidance?
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A loud whining noise on acceleration in a 2010 Mazda Tribute could be a sign of a few different issues. Here are some potential causes:
Power steering pump: A whining noise can be an indication of a failing power steering pump. The noise may increase when the steering wheel is turned.
Alternator: If the whining noise increases with engine speed, the alternator may be failing. This is because the alternator is responsible for charging the battery and powering the car's electrical system.
Transmission: A whining noise during acceleration could also be a sign of transmission issues, such as low transmission fluid levels, worn bearings, or a damaged gear.
Differential: A whining noise that increases with speed could also be a sign of a failing differential. This is the part of the car that transfers power from the engine to the wheels.
It's important to have a professional mechanic diagnose and fix the issue to prevent further damage to your vehicle.
The whining sound that you here could be coming from a number of places. It may be a coincidence but I think you may be talking about the transmission's pump. You may want to buy a stethoscope. This tool, if properly and carefully used, will help pin point a mechanical noise. Other possibilities are the power steering pump, tensioner and idler bearing, A/C compressor or A/C clutch, or Alternator. I hope this helps, write back if you have any other questions, good luck.
have you looked at the tires- if they are wore down the wear bars-little bands of rubber that cross the grooves in tread will be exposed and the noise is your warning to get new tires soon
that whining noise is definately your power steering pump. the earlier models eg 2001-2003 just have noisy ones. so they say, if that noise become really excessive; its an early warning that its gonna fail. the newer pumps are much quiter, but i was quoted approx 1200+ CND for a new pump. I have a 2003 cooper, and the whining noise is loud. only once has the steering been really stiff, but i resolve that problem by restarting the vehicle. watch out tho, the power sttering could fail on you while your driving around a corner, and if you dont have both hands on the wheel, you'll go strait.
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