Ricky Beals Posted July 15, 2022 Share Posted July 15, 2022 I had a local shop to replace my Eaton fuller clutch. Never had a problem with hi/lo switch leaking air or not working. Well after several weeks I went in to check on truck and was told The hi/lo switch was leaking air. Nobody really could tell me what exactly was wrong seems they were wanting me to talk with main mechanic. Next day I talked to main mechanic and said the lines were correct( thought they were switched) and he would have to trouble shoot. Week later he is saying a valve on top or side of transmission is bad. Does this make any sense to you guys. I’m at the mercy of having to listen. Is this a coincidence that the valve went out. Never had a problem out of hi/lo switch before? Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/ Share on other sites More sharing options...
Onyx610 Posted July 15, 2022 Share Posted July 15, 2022 Leaking at the trans or the shifter? Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503112 Share on other sites More sharing options...
Ricky Beals Posted July 15, 2022 Author Share Posted July 15, 2022 They were saying at the shifter but last I talked to them they said it was a valve on transmission that operates hi/lo Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503114 Share on other sites More sharing options...
Ricky Beals Posted July 20, 2022 Author Share Posted July 20, 2022 Still don’t have my truck back. The shop has replaced two parts but not finding the problem. They have put my old parts back on. They are now saying they have to rebuild a valve located near the rear of transmission. My question is this a coincidence or did someone mess something up replacing my clutch? Again my high/low switch was not working. Before clutch replaced never had any issues with it. Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503557 Share on other sites More sharing options...
MACKS Posted July 20, 2022 Share Posted July 20, 2022 Sounds to me like they screwed up,several weeks to install a clutch? Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503580 Share on other sites More sharing options...
mrsmackpaul Posted July 20, 2022 Share Posted July 20, 2022 Sounds like the air regulator isnt working, wel. If it was a Mack transmission I would suggest that Dunno about the RoadRanger but think their gunna be similar, sounds like someone has hooked onto the wrong air supply and your getting full air pressure to the switch Rather than correcting their mistake they have tried just changing the regulator Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503583 Share on other sites More sharing options...
MACKS Posted July 21, 2022 Share Posted July 21, 2022 How did the rear suspension job turn out,nice n tight now? Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503764 Share on other sites More sharing options...
Ricky Beals Posted July 23, 2022 Author Share Posted July 23, 2022 Macks it turned out good. We ended up having to the trunion bar due to a loose nut wearing away all the threads. my biggest concern on this whole hi/lo switch not working. I was told the valve on the transmission was worn out they replaced it and problem still there. They have replaced two parts and not fixed the problem. Yes they put my old parts back on but the trust isn’t there. I mean if the first valve they changed out was worn out how is it working now. im no mechanic but my gut tells me they have screwed something up and they don’t even know what it is they have screwed up. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503923 Share on other sites More sharing options...
Onyx610 Posted July 23, 2022 Share Posted July 23, 2022 (edited) Air lines are pry mixed up on the shifter. Believe it or not people can’t get color coded lines correct. I was told that by a Mack dealer that they had guys working there before and that they couldn’t even get that right. Scary shit Edited July 23, 2022 by Onyx610 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503924 Share on other sites More sharing options...
Ricky Beals Posted July 23, 2022 Author Share Posted July 23, 2022 I’m guessing I need to make a decision on this whole mess. Go get my truck and take it to the mack dealership. Surely to the heavens they have tripled checked those air lines. Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503925 Share on other sites More sharing options...
Onyx610 Posted July 23, 2022 Share Posted July 23, 2022 Yea there just spending your money. Although I wouldn’t pay for their “guess work” 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503926 Share on other sites More sharing options...
Joey Mack Posted July 23, 2022 Share Posted July 23, 2022 what eaton tranny do you have.? Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503958 Share on other sites More sharing options...
Joey Mack Posted July 23, 2022 Share Posted July 23, 2022 (edited) do you have 'lo' or 'hi' range? does air contiuosly leak no matter if the range button is up or down? Lets say you have an Eaton 8LL or 13/18 spd. the shuttle valve is on the top left edge of the tranny. it has 3 rubber hoses that go to the rear range valves and a filter/regulator.. and 5 spaghetti lines from the shifter, red/blk/grn/wht/blue... ( I believe I am correct) the white one is the exhaust line.. someone please correct me if im wrong.. If its a 10 spd. the shuttle valve is on the top, front section of the shift cover. 1 main air supply 'in' 3/8" line, and 2 spaghetti lines from the shifter. blk/white... the white one goes to the right fitting on the shuttle valve, the black one goes to the left fitting. in this case you can just switch the lines at the shift knob, for ease of access.. back to the 8LL-13/18spd.. there would be no reason for them to remove the rubber lines, unless they saw damage or dry rot, or if you asked them to re-ring the range pistons.. however the 4 spaghetti lines have to be un hooked.. We will get this figured out, if all lines are connected correctly, you may have a bad o-ring on a range piston, causing an air 'by-pass' jojo Edited July 23, 2022 by Joey Mack more content needed 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503964 Share on other sites More sharing options...
Joey Mack Posted July 23, 2022 Share Posted July 23, 2022 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503965 Share on other sites More sharing options...
MACKS Posted July 23, 2022 Share Posted July 23, 2022 It sucks when people don’t know what there doing,it wasn’t broke when u brought it in,they probably screwed up the air lines first and then who knows what the hell they did,I wouldn’t pay them a dime over your agreed price.. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503988 Share on other sites More sharing options...
MACKS Posted July 23, 2022 Share Posted July 23, 2022 I have a mess of air lines on my 12 speed but there all marked on both ends with little colored wire tie and everything is marked,the selector valve and the air cylinders are marked to.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-503989 Share on other sites More sharing options...
Onyx610 Posted July 24, 2022 Share Posted July 24, 2022 22 hours ago, MACKS said: It sucks when people don’t know what there doing,it wasn’t broke when u brought it in,they probably screwed up the air lines first and then who knows what the hell they did,I wouldn’t pay them a dime over your agreed price.. Makes me question the clutch job itself. Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504109 Share on other sites More sharing options...
Joey Mack Posted July 24, 2022 Share Posted July 24, 2022 the only lines to be removed were the spaghetti lines off the shuttle valve.. now.. if there was a boo boo when pulling the tranny and it fell off the jack, or rolled away and hit the range valve regulator/filter and broke it, or the shuttle valve got broken, or... someone didnt mark the shuttle valve lines before pulling the tranny, because of being slack or lack of training.. these can be possibilities.. I would like to think that the service writer/manager, would have heard the real story and then relayed the issue to Ricky.. Honesty, as hard as it may be to swallow, it is the best way to work with the customer, when a human error occurs.. I know,,, I have had issues over the years, and I currently have an issue with a job I have done dozens of time's. I take it upon myself to get to the bottom of the issue, then fix it.. jojo 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504111 Share on other sites More sharing options...
fjh Posted July 25, 2022 Share Posted July 25, 2022 (edited) 21 hours ago, Joey Mack said: the only lines to be removed were the spaghetti lines off the shuttle valve.. now.. if there was a boo boo when pulling the tranny and it fell off the jack, or rolled away and hit the range valve regulator/filter and broke it, or the shuttle valve got broken, or... someone didnt mark the shuttle valve lines before pulling the tranny, because of being slack or lack of training.. these can be possibilities.. I would like to think that the service writer/manager, would have heard the real story and then relayed the issue to Ricky.. Honesty, as hard as it may be to swallow, it is the best way to work with the customer, when a human error occurs.. I know,,, I have had issues over the years, and I currently have an issue with a job I have done dozens of time's. I take it upon myself to get to the bottom of the issue, then fix it.. jojo Yup if you want credibility and respect you need to own it when a F up happens! Pretty simple! Even when and if you determine it wasn't something you did the suspicion is always there in their minds! Just put your self in there shoes! I your case its mainly only time to eat! If you are the business owner time has to be accounted for! Its like reds valve /lifter issue there in some ways had that happened to some one he had payed to do that job he would be suspicious! Edited July 25, 2022 by fjh Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504261 Share on other sites More sharing options...
doubleclutchinweasel Posted July 25, 2022 Share Posted July 25, 2022 (edited) This almost qualifies for my "pull them all off and put on one line at a time" theory. I mean, like Jo-Jo pointed out, there just aren't that many lines on one of these blasted things. Without seeing where the air leak is, it's really hard to pin it down. If there isn't a leak on the range piston O-ring, causing air to bypass it, then it has to be one of the external valves or a crossed line. I'd still bet on a crossed line first. Here's a manual for a typical 13-speed. Start down about page 20. Has descriptions of the air system and some troubleshooting instructions. Other models would be similar. I have a few more of these handy, if I knew which trans you had. TRSM0660-2007-14613.pdf Edited July 25, 2022 by doubleclutchinweasel 1 Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504266 Share on other sites More sharing options...
doubleclutchinweasel Posted July 25, 2022 Share Posted July 25, 2022 In fact, look at page 119. Shows in detail how things are connected. Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504267 Share on other sites More sharing options...
doubleclutchinweasel Posted July 25, 2022 Share Posted July 25, 2022 Here are a couple of useful links... https://www.eaton.com/rr/CustomerSupport/Support/LiteratureCenter/index.htm?sfield=xPublicationDate&sorder=Desc&pagenum=1&litlibtarget=1162919212402 http://www.roadranger.com/rr/CustomerSupport/Support/LiteratureCenter/index.htm?sfield=dDocTitle&sorder=Asc&pagenum=1&litlibtarget=1162919212406 1 Quote "Eagles may soar, but weasels don't get sucked into jet engines." Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504268 Share on other sites More sharing options...
mrsmackpaul Posted July 25, 2022 Share Posted July 25, 2022 4 hours ago, doubleclutchinweasel said: This almost qualifies for my "pull them all off and put on one line at a time" theory TRSM0660-2007-14613.pdf 4.1 MB · 2 downloads If it was mine I would start here. Prove what is what at the very begining The problem now is no one knows what has and hasnt been done, it isnt about pointing fingers anymore, it would be just about getting it going and finger pointing can come later Paul Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504297 Share on other sites More sharing options...
JoeH Posted July 25, 2022 Share Posted July 25, 2022 I'm guessing lines hooked up wrong because they had the trans out for the clutch. But my 8ll had a cracked combination cylinder piston. It's a disc that slides the hi lo shifter fork back and forth. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504298 Share on other sites More sharing options...
Mark T Posted July 25, 2022 Share Posted July 25, 2022 On 7/19/2022 at 9:51 PM, Ricky Beals said: Still don’t have my truck back. The shop has replaced two parts but not finding the problem. They have put my old parts back on. They are now saying they have to rebuild a valve located near the rear of transmission. My question is this a coincidence or did someone mess something up replacing my clutch? Again my high/low switch was not working. Before clutch replaced never had any issues with it. Hi/low was not (?) working ? are you referring to the range valve ? (flipper on the front of the knob) or the blue button on the side ? I'm gonna guess this is a Fuller 8LL ? Quote Link to comment https://www.bigmacktrucks.com/topic/70117-clutch-change-out-now-hilow-leaks-air/#findComment-504301 Share on other sites More sharing options...
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