pookie Posted September 10, 2011 Share Posted September 10, 2011 I have a bad knocking sound comeing from under my cab it only does it when its first started for the day and when i make a left turn.i think its the exhaust pipe were it runs above the crossmember,how can these be fixed or could it be something else wrong around the crossmember makeing it hit. THANKS Link to comment Share on other sites More sharing options...
Boots Posted September 10, 2011 Share Posted September 10, 2011 There should be an exhaust hanger of some sort near or on the cross member. I would check that first to see if it needs replacing. :wrench: Link to comment Share on other sites More sharing options...
ratrapp Posted September 10, 2011 Share Posted September 10, 2011 you have either a broken motor mount or collapsed transmission mount.you possibly can have both as i did.it's not that uncommon on these trucks. Link to comment Share on other sites More sharing options...
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