2001 Mazda 626

2001 MAZDA 626
115,000 MILES • 4 CYL • FWD • AUTOMATIC
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DADGRR
  • MEMBER
  • 1 POST
Just bought used Mazda 626. Heard loud rattling noise coming from belt area. Noise much louder when air conditioning engaged, but only occurs at low rpm. Can still hear noise at low rpm without air conditioner on. Coolant was low (thus engine would get hot on 87 degree day) but when I added coolant, the coolant level remained high after driving for several miles.

It is the next morning after buying the car and when I cold-started the car, the noise had disappeared. Thus, the noise appears to be related to when the engine warms up.

Help!
Jul 10, 2010 at 6:47 AM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Hi there,

I would start with having all the drive belt pulleys checked for faulty bearings, i would also have the timing belt tensioner checked as well, start here and let me know what they find.

mark (mmhpautos)
Jul 10, 2010 at 7:00 AM
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