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I have an 05 Mazda 6, when my car is while idling it makes a loud cracking/popping noise.

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  • 358 Answers

A cracking or popping noise is frequently an indication of an air/fuel mixture that is too lean (too much air). Have a mechanic or mechanically inclined friend check the various vacuum lines on your engine. Sounds like a cracked or broken vacuum hose on the intake side of the engine. Good luck.

Posted on Oct 10, 2013

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6ya6ya
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Posted on Jan 02, 2017

localwonder
  • 6784 Answers

SOURCE: when engine fan engages makes loud squealing noise

OK, the motor that you are referring to has lots of cooper windings and internal parts that can become misaligned during long term operations and extreme heat situations. this noise you are hearing is basically a warning sign that is trying to tell you that this motor is failing and will go out soon.

Posted on Mar 22, 2009

mrgreenz
  • 962 Answers

SOURCE: 1997 Mazda Protege: Engine has clicking noise when idling.

Check to see if the valve lifters are not making the noise. Turn on the engine and rev it up to about 1500 rpms and see if the clicking is coming from the valve cover area.

Posted on Apr 05, 2009

  • 22 Answers

SOURCE: Loud acceleration noise in my 2003 Mazda 6 2.0 auto

one thing to check is rear engine mounting i have had a stone wedged in one and it causes a nasty noise when accelerating

Posted on Apr 17, 2009

warlock61
  • 659 Answers

SOURCE: car making loud humming noise from the air intake

the idle air bypass valve is making noise and resonating through the air inlet the valve needs to be replaced there is also a revised hose to the valve to reduce noise if it hasn't already been replaced

Posted on Jun 16, 2009

SharkDad
  • 1 Answer

SOURCE: 02 altima belt noise

OK, went through the exact same thing this week. Put on a new belt, checked for proper seating, etc, etc. and that wasn't it. Read all through this site and others and it comes down to one of two things, the tension pulley assembly or the compressor itself. Seeing as compressors ran about $300 or so and the pully assembly is less than $50 and takes about 45 min to an hour to replace, I did that first. And for me, that was it. Tip for replacing the pulley assembly? Have a wide variety of sockets (depth) and extensions.

Posted on Jun 28, 2009

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1 Answer

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one thing to check is rear engine mounting i have had a stone wedged in one and it causes a nasty noise when accelerating

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Check to see if the valve lifters are not making the noise. Turn on the engine and rev it up to about 1500 rpms and see if the clicking is coming from the valve cover area.

Apr 05, 2009 | 1997 Mazda Protege

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