http://www.gmcfaq.org GMC Common Questions & Answers Fri, 23 Apr 2010 23:29:50 +0000 http://wordpress.org/?v=2.9.1 hourly 1 http://www.gmcfaq.org/jimmy/2000-gmc-truck-with-the-6-0-liter-noisy-74642.html/comment-page-1#comment-30 Jarrod Fri, 23 Apr 2010 23:29:50 +0000 http://www.gmcfaq.org/uncategorized/2000-gmc-truck-with-the-6-0-liter-noisy-74642.html#comment-30 About the engine noise.....I have a 2001 6 liter 2500HD with a noticable knock at idle as well. It dose it moslty when it's cold. I have been told that they are famous for the noise and that it is caused by piston slap..... About the engine noise…..I have a 2001 6 liter 2500HD with a noticable knock at idle as well. It dose it moslty when it’s cold. I have been told that they are famous for the noise and that it is caused by piston slap…..

]]> http://www.gmcfaq.org/gmc-truck/idler-pully-105622.html/comment-page-1#comment-29 Terry Wed, 14 Apr 2010 22:15:35 +0000 http://www.gmcfaq.org/uncategorized/idler-pully-105622.html#comment-29 actually you have several options: you can take the idler off and re-grease/ repack the bearing with special high viscosity and high temp.grease about $8 cdn(thick), or you can replace the factory sealed bearing about $11 cdn or replace the whole thing for $30 DIYS * nut is metric and is usually a reverse thread so don't try and turn it counterclockwise as with a standard bolt or you will break it off-$320 fix - it has to go clockwise to OFF done it all three ways even broke my first one !!! Cheere actually you have several options: you can take the idler off and re-grease/ repack the bearing with special high viscosity and high temp.grease about $8 cdn(thick), or you can replace the factory sealed bearing about $11 cdn or replace the whole thing for $30 DIYS * nut is metric and is usually a reverse thread so don’t try and turn it counterclockwise as with a standard bolt or you will break it off-$320 fix – it has to go clockwise to OFF done it all three ways even broke my first one !!! Cheere

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