scottwetzel Posted July 2, 2015 Share Posted July 2, 2015 Ok so my superliner with a e6 350 has developed a viberation mostly felt when accelerating above 1500 rpms on the highway. U joints and driveshaft is tight and was replaced less then 6 months ago. I can't figure it out. My belts did come off and apart a week ago but I assumed it was cause they were old cause when I replaced them everything is good. Now a 1000 miles later I have this viberation. I really feel it in the fuel pedal. Any suggestions? Quote Link to comment Share on other sites More sharing options...
ranchhopper Posted July 2, 2015 Share Posted July 2, 2015 Check the harmonic balancer. Quote Link to comment Share on other sites More sharing options...
Baxter Posted July 2, 2015 Share Posted July 2, 2015 Check two groove belt pulley on front of crankshaft. Quote Link to comment Share on other sites More sharing options...
scottwetzel Posted July 2, 2015 Author Share Posted July 2, 2015 When I check the balancer what should I be looking for? Quote Link to comment Share on other sites More sharing options...
j hancock Posted July 2, 2015 Share Posted July 2, 2015 Should run true with no wobble. 1 Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
rsb502 Posted July 4, 2015 Share Posted July 4, 2015 Is your truck air ride? Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment Share on other sites More sharing options...
Baxter Posted July 4, 2015 Share Posted July 4, 2015 Is your truck air ride? no his truck is not. Quote Link to comment Share on other sites More sharing options...
blackdog2 Posted July 4, 2015 Share Posted July 4, 2015 Clutch fan seized drive shaft alignment pressure plate coming apart Quote Ed Link to comment Share on other sites More sharing options...
scottwetzel Posted July 9, 2015 Author Share Posted July 9, 2015 Ok found some problems. Right motor mount is shot. Replacing that now. Also u joint on trans yoke is little loose. Just gonna replace that too. Lastly my pinion seal that comes out of the front rear to the rear drive shaft is leaking. Replacing that now too but found the yoke has a little movement. Guessing some bearing inside is starting to fail. Might be time to scrap the camel back and these 4.64 rears and go to Mack ch air ride with 4.17s. Quote Link to comment Share on other sites More sharing options...
mrsmackpaul Posted July 9, 2015 Share Posted July 9, 2015 check the big bolt inside the tail shaft yoke on the output shaft of the trans these are known to come loose some timesPaul Quote Link to comment Share on other sites More sharing options...
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