JAKE_MORSE Posted July 4, 2008 Share Posted July 4, 2008 I have an 06 e450 with an intermittant ratcheting noise from trans while shifting between second and the rest of the gears. cant duplicate on the jack stands. removed trans and dissasembled expecting to find a damaged one way clutch and only the low one way sounds a little funny. te rest of the trans seems ok and the friction materials seem fine. Found out from the city fleet mech. that they have been using merc.5 insted of merc.SP. any ideas Hotline said there are no known concerns for noise in these units. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted July 4, 2008 Share Posted July 4, 2008 I was told that if anything other than merc sp was put in a 5R110W, then the unit should be considered junk and changed out. /forums/images/%%GRAEMLIN_URL%%/shrug.gif Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted July 4, 2008 Share Posted July 4, 2008 Just to add to what Brad said.... If we contact Mr. Peabody, I'm sure he'd allow us to use the WABAC machine... and we could trundle back into history to look at ATF... Used to be that there was only one "ATF" - and that was "Type A".... And then, one fine day, we discovered "Type F" - along with dire warnings that we shouldn't allow these fluids to "co-mingle" nor should we put the wrong fluid in the wrong transmission... What was the big difference between the two? The co-efficient of friction... As the speed differential between friction elements approached zero, one fluid gave "softer, smoother" shifts - the other fluid gave "firmer, more robust" shifts. Let's remember that, at the time GM was still flogging the PowerGlide while Ford was busy selling the FMX, the C4 and the C6 (all of them 3 speeds as opposed to the 'Glides 2 speeds). And, if we put the wrong stuff in the right place - the world wasn't going to come to an end... But we get dragged, kicking and screaming, back into the 21st century... and we get that nagging feeling that Mercon V is being used in transmissions that use valve bodies - and that Mercon SP is being spec'd for "electronic" transmissions. Before I pause and let some of this stuff sink in... let's consider that we know what bad clutch packs in a limited slip feel like (and maybe we shouldn't overlook them in this concern)... and we know that the trans has been serviced with the wrong fluid - and now all of the frictions in the trans are suspect.... Quote Link to comment Share on other sites More sharing options...
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