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Tapers noise when u start the engine - Cars & Trucks

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If you have hydraulic lifters in your engine, they might be dirty and an engine flush might be the answer. Some engines - early 2.5 Subaru - are known for "piston slap", which sounds similar to a tappett noise and goes away when the engine warms up and the piston and piston rings expand.
Make sure you have enough clean oil of the proper viscosity grade in the engine.................

Posted on Nov 24, 2014


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Fan belt is making noise.

If your fan belt is squealing and changes pitch when you accelerate or let off the gas or squeals at first then tapers off, then it is slipping. If it is slipping you could replace the belt (probably a good idea considering the age of the car), or as a temporary fix you can spray the belt with belt dressing. Belt dressing is only a few bucks at any local auto parts store and comes in a spray can. Follow directions on the can.

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Rear diff bearing torque settings 95 trooper

Do you mean the pre loads on the pinion bearings and the crownwheel ?
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Audi A4 2006 2.0 Turbo Quattro, with 13000 miles. Problem: When warmed up, check engine light comes on and a loud squeal is heard. Tapers off when gas is pressed. Power remains OK. Air control system...

the squeal is caused by a belt,not tensioned correctly ,I would check the cambelt tension first and then the serpentine belt,if not obvious you need to take to a Audi trained garage.If you plug in a code reader it will help point you in the right direction by the fault code.

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