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thump noise

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Old 12-11-2010, 07:38 PM
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Exclamation thump noise

Anyone hearing/feeling a mild thump under their truck when you let up off the gas pedal,and then press it down again?I dont recall it doing it all the time,mostly when the truck is at a coast,and then you lay back into the throttle.It is just starting to annoy me!
 
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Old 12-12-2010, 01:14 AM
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I think it is the engine dropping into 4 cylinder mode. It's pretty subtle, but noticeable.
 
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Old 12-12-2010, 05:17 PM
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Most likely its the torque convertor unlocking/locking
Get use to it, most all the 1/2 & 3/4 ton dodge trucks do it, some better, some worse than others.
If you feel that its getting worse, have it checked out, might just need a re-flash and re-learn.
Also, change your driving habits and see if THAT makes a difference. Sometimes my truck will throw a fit once in awhile and i just take it out on the highway and jam the gas pedal and let it go up thru the gears hard. That usually fix`s it for me, and it goes back to shifting perfect again after that...., BUT, you may have a different issue all together. Some people on the forums say they`ve changed over to synthetic and they`re saying it made a world of difference....dunno, do what you feel is right.
 



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