wierd noise when starting car and when driving and rpms are low - Page 2 - Mazda MX-6 Forum
LinkBack Thread Tools
post #16 of 17 (permalink) Old 12-3-04, 16:22
Join Date: Nov 2003
Location: Kberg
Age: 42
Posts: 173
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Power: 5
Check the idler pulleys on the drive belts. Take the drive belts off and spin the pulleys by hand. If they click or feel rough when truned, they have gone bad and that is the source of the sound. The bearings go bad inside the pulley. They cost about 13 bucks on the east coast from NAPA. The original part number off the bearing is NSK 6203DUL1. Drive the old ones out with a hammer, socket, and some blocks of wood. I suggest using a C-clamp to put them back in since it is easiest on the bearings and has the lowest chance of damage. I also suggest using the old bearing up against the new bearing and a piece of wood when putting new bearings back.
Last bit, try to get the bearings with the rubber seals on the races and be careful not to damage the new races or else you will be doing the job all over.
If the pulleys are not the problem, it could be the bearings in the A/C or the alternator. Check these by using a long screw driver pressed up against the ends of the parts while the motor is running. Placing the andle against your ear will let you hear the sounds made by the bearings. Any clicking indicates a bad bearing.
shorts6174 is offline  
Sponsored Links
post #17 of 17 (permalink) Old 12-3-04, 16:28
Join Date: Sep 2002
Location: PGH, PA
Posts: 125
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Power: 5
You might want to try spraying "Belt Dressing" on your fan belts while the engine is running, if the noise stops, change belts/adjust tension.
Jake_Ellwood is offline  
Sponsored Links

Quick Reply

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Permissions  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome