Duramax Diesels Forum Truck of the Week
  #1  
Old 10-13-2017, 07:09 PM
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Default Need Help with Trans Problems

Be forewarned this may be a little long winded but it is all pertinent information I think. So I had made some repairs on my truck due to melting down an exhaust turbine in my valley turbo due to exhaust leaks at the pedestal. I took it for a test drive where I decided to do a test hit, I put it in tune 5, engaged auto mode on the BT lock box, engaged 4x4, engaged Tow Haul Mode, everything I typically do at the track. I did a mildly boosted launch at about 20-25 PSI, it spun all 4 for a bit then it rocketed out of the hole hit about 100 and I shut it down. All went well, no more test hits as I told myself I would not run it at the track again till I installed my 3.42 gears. Fast forward---I installed the 3.42s front and rear. Once again I need to go test drive the truck to make sure gear install is good. No noise at all , all was good with the gear installs. So I figured do a test hit, did a tune 3 this time, did same as before to prepare for the launch, this time it left good again except that when it went to shift it flare shifted the 2-3 shift, I forgot to mention I do 2nd gear launches. So when it flared shifted I shut it down cause that was abnormal. I decide to drive it back home , I pull up to a stop sign and it wants to pull me thru the stop sign, upon further examination I see its stuck in 5th gear and won't down shift. I turned it off and restarted it, it's back in 1st gear, I drive it and now its stuck in 1st gear and won't upshift. I get it home put it in park, then put it in drive and it engages hard, same thing in reverse. I leave it alone for a while then try it again , now I put it in drive and it barely inches forward then acts like I put it in park, I give it the gas it will rev a little then like it defuels and it feels like its in a bind, it lugs the motor. I put it in park and it will rev no problem. So no check engine light. I assume it was the converter and replaced it. Got done with the new converter install and it changed Nothing. So could it be stuck solenoid valves ? I don"t think its the clutches just because I had no prior issues with slipping. Any help would be greatly appreciated. I know codes would be helpful, but the check engine light is not on so I'm assuming it hasn't thrown any codes. Thanks Again
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  #2  
Old 10-13-2017, 07:42 PM
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Sounds like you welded some clutches together.
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Old 10-13-2017, 07:53 PM
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is that typical of symptoms I’m describing?
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06! GMC Sierra RC Full built motor, carillos, 14/1 Arias W/total seal rings, 9100 AF, SCalTit retainers,SCalsprings,ported heads, SCal pushrods, ARP 625 head studs, O-ringed block, keyed oil pump ,Billet Aluminum Lifters, Harland Sharp Aluminum roller rockers, studded rocker shafts, studded & girdled mains, socal balancer, socal flywheel, PPE Dual Fuelers with twin Fleece 10 mm CP3s , FASS Titanium 260 , 3" bridge, , TrRIPLES----2---S369SXEs .88ARs over a Hybrid GTX 4202R--72mm/87mm 1.0 AR ,coilovers at 4 corners, 36" ladder bars, BD cooler, Exergys w/185% MS 8 hole nozzles ,FF Dynamics fans, PPE mans & ups , MA mounts & TC Brace ,NOS, Full Billet Trans, Suncoast 10531-3D , 3.42 Gears, BT lockup box, 18x9 Raceline Assualts Hooiser Drag Radials 325/45/18s . TUNED by MARK@DANVILLE. Engine by Jason Walker San Marcus Tx Best 60'---1.44. Best 1/8---6.39@105.92. Best 1/4---9.978@136.39
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Old 10-14-2017, 06:11 AM
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Any codes? I'd drop the pan and look for materials.
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Old 10-14-2017, 06:17 AM
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I'm not sure on the Allison, but when I welded the clutches together in my 4l80, I had all drive gears, in neutral it acted like I had a trans brake and wouldn't rev, always under load, same in reverse and wouldn't move and park it would rev fine and had zero load.
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Old 10-14-2017, 06:44 AM
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Starting to sound like welded clutches ^^^^^^^^^^. My symptoms are exactly as described above . As far as dropping the pan , I just did that when I changed the converter obviously. And yes there was very fine clutch material in the oil . When I opened the pan filter there wasn’t hardly nothing in there , when my converters has broken before there was a lot of metal etc
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06! GMC Sierra RC Full built motor, carillos, 14/1 Arias W/total seal rings, 9100 AF, SCalTit retainers,SCalsprings,ported heads, SCal pushrods, ARP 625 head studs, O-ringed block, keyed oil pump ,Billet Aluminum Lifters, Harland Sharp Aluminum roller rockers, studded rocker shafts, studded & girdled mains, socal balancer, socal flywheel, PPE Dual Fuelers with twin Fleece 10 mm CP3s , FASS Titanium 260 , 3" bridge, , TrRIPLES----2---S369SXEs .88ARs over a Hybrid GTX 4202R--72mm/87mm 1.0 AR ,coilovers at 4 corners, 36" ladder bars, BD cooler, Exergys w/185% MS 8 hole nozzles ,FF Dynamics fans, PPE mans & ups , MA mounts & TC Brace ,NOS, Full Billet Trans, Suncoast 10531-3D , 3.42 Gears, BT lockup box, 18x9 Raceline Assualts Hooiser Drag Radials 325/45/18s . TUNED by MARK@DANVILLE. Engine by Jason Walker San Marcus Tx Best 60'---1.44. Best 1/8---6.39@105.92. Best 1/4---9.978@136.39
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Old 10-14-2017, 07:39 AM
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Is reverse fine?
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Old 10-14-2017, 08:14 AM
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Sounds like you might have more then one issue. Whatever it is I would tear it clear down and go through everything.

Being stuck in a gear or binding sounds like a welded clutch. But try to pull through the brakes is the converter staying locked or at least dragging. It doesn't matter what gear your in it shouldn't try to pull through the brakes if the converter is working properly.


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Old 10-14-2017, 08:21 AM
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Initially when it happened it did , but just f I’m moving it in the driveway it now does not move toward or reverse
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Old 10-21-2017, 11:44 AM
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Default Pics

Pics of what I found on the pump cover
Attached Images
File Type: jpg 6C1ED03F-F937-4E4E-BD30-B602B193FC95.jpg (94.5 KB, 50 views)
File Type: jpg 932E5E1C-5A5A-4187-8510-90787F933F98.jpg (94.2 KB, 49 views)
File Type: jpg E30C5B1D-4BC9-4349-903D-DBBBDC8D33E6.jpg (91.3 KB, 49 views)
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06! GMC Sierra RC Full built motor, carillos, 14/1 Arias W/total seal rings, 9100 AF, SCalTit retainers,SCalsprings,ported heads, SCal pushrods, ARP 625 head studs, O-ringed block, keyed oil pump ,Billet Aluminum Lifters, Harland Sharp Aluminum roller rockers, studded rocker shafts, studded & girdled mains, socal balancer, socal flywheel, PPE Dual Fuelers with twin Fleece 10 mm CP3s , FASS Titanium 260 , 3" bridge, , TrRIPLES----2---S369SXEs .88ARs over a Hybrid GTX 4202R--72mm/87mm 1.0 AR ,coilovers at 4 corners, 36" ladder bars, BD cooler, Exergys w/185% MS 8 hole nozzles ,FF Dynamics fans, PPE mans & ups , MA mounts & TC Brace ,NOS, Full Billet Trans, Suncoast 10531-3D , 3.42 Gears, BT lockup box, 18x9 Raceline Assualts Hooiser Drag Radials 325/45/18s . TUNED by MARK@DANVILLE. Engine by Jason Walker San Marcus Tx Best 60'---1.44. Best 1/8---6.39@105.92. Best 1/4---9.978@136.39
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Old 10-21-2017, 12:03 PM
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The last pic has the broken piece sitting on top of the pump cover . Question is would this broken piece cause the problems I’m having ? I also checked all the clutch sets . C1, C2, C5 clutch sets were pristine no hot spots at all and clutches looked excellent. C3 and C4 clutch sets looked like they have been slipping , they looked blackened, the steels looked blackened as well . 1 thin steel in the C3 set is warped. Anybody have any ideas as to what is going on with my trans ? Should I replace the broken piece , C3s and C4s and give it a go ? I’m gonna pull the valve body as well to see if there’s any stuck valves . I would hate to replace those items put it back in for it to just do the same exact thing again
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06! GMC Sierra RC Full built motor, carillos, 14/1 Arias W/total seal rings, 9100 AF, SCalTit retainers,SCalsprings,ported heads, SCal pushrods, ARP 625 head studs, O-ringed block, keyed oil pump ,Billet Aluminum Lifters, Harland Sharp Aluminum roller rockers, studded rocker shafts, studded & girdled mains, socal balancer, socal flywheel, PPE Dual Fuelers with twin Fleece 10 mm CP3s , FASS Titanium 260 , 3" bridge, , TrRIPLES----2---S369SXEs .88ARs over a Hybrid GTX 4202R--72mm/87mm 1.0 AR ,coilovers at 4 corners, 36" ladder bars, BD cooler, Exergys w/185% MS 8 hole nozzles ,FF Dynamics fans, PPE mans & ups , MA mounts & TC Brace ,NOS, Full Billet Trans, Suncoast 10531-3D , 3.42 Gears, BT lockup box, 18x9 Raceline Assualts Hooiser Drag Radials 325/45/18s . TUNED by MARK@DANVILLE. Engine by Jason Walker San Marcus Tx Best 60'---1.44. Best 1/8---6.39@105.92. Best 1/4---9.978@136.39
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Old 10-21-2017, 01:30 PM
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Quote:
Originally Posted by prostreeter600 View Post
The last pic has the broken piece sitting on top of the pump cover . Question is would this broken piece cause the problems Iím having ? I also checked all the clutch sets . C1, C2, C5 clutch sets were pristine no hot spots at all and clutches looked excellent. C3 and C4 clutch sets looked like they have been slipping , they looked blackened, the steels looked blackened as well . 1 thin steel in the C3 set is warped. Anybody have any ideas as to what is going on with my trans ? Should I replace the broken piece , C3s and C4s and give it a go ? Iím gonna pull the valve body as well to see if thereís any stuck valves . I would hate to replace those items put it back in for it to just do the same exact thing again
Never should of been a thin steel in c3. If you want to call Monday I can get you setup with what you need and go over what you have a going on.
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Old 10-21-2017, 01:34 PM
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I’ll call you Monday
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06! GMC Sierra RC Full built motor, carillos, 14/1 Arias W/total seal rings, 9100 AF, SCalTit retainers,SCalsprings,ported heads, SCal pushrods, ARP 625 head studs, O-ringed block, keyed oil pump ,Billet Aluminum Lifters, Harland Sharp Aluminum roller rockers, studded rocker shafts, studded & girdled mains, socal balancer, socal flywheel, PPE Dual Fuelers with twin Fleece 10 mm CP3s , FASS Titanium 260 , 3" bridge, , TrRIPLES----2---S369SXEs .88ARs over a Hybrid GTX 4202R--72mm/87mm 1.0 AR ,coilovers at 4 corners, 36" ladder bars, BD cooler, Exergys w/185% MS 8 hole nozzles ,FF Dynamics fans, PPE mans & ups , MA mounts & TC Brace ,NOS, Full Billet Trans, Suncoast 10531-3D , 3.42 Gears, BT lockup box, 18x9 Raceline Assualts Hooiser Drag Radials 325/45/18s . TUNED by MARK@DANVILLE. Engine by Jason Walker San Marcus Tx Best 60'---1.44. Best 1/8---6.39@105.92. Best 1/4---9.978@136.39
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Old 10-21-2017, 02:06 PM
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That broken keeper affected your C1 through C4 clutches. As Evan said, there should not be a thin steel in C3 or any other clutch. Thin steels can not dissipate heat and will warp.
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Old 10-21-2017, 02:51 PM
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To be clear there are 5 steels in my C3 clutch set 3 are at .099 and 2 are at .067 . 1 of the .067s is warped and wavy no longer flat . My bottom Suncoast plate that holds the return springs is .231 thick and the top plate is .385 thick . So Mike is it fair to say that the broken keeper compounded the thin steels ? What does that valve control? The one with the broken keeper.
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06! GMC Sierra RC Full built motor, carillos, 14/1 Arias W/total seal rings, 9100 AF, SCalTit retainers,SCalsprings,ported heads, SCal pushrods, ARP 625 head studs, O-ringed block, keyed oil pump ,Billet Aluminum Lifters, Harland Sharp Aluminum roller rockers, studded rocker shafts, studded & girdled mains, socal balancer, socal flywheel, PPE Dual Fuelers with twin Fleece 10 mm CP3s , FASS Titanium 260 , 3" bridge, , TrRIPLES----2---S369SXEs .88ARs over a Hybrid GTX 4202R--72mm/87mm 1.0 AR ,coilovers at 4 corners, 36" ladder bars, BD cooler, Exergys w/185% MS 8 hole nozzles ,FF Dynamics fans, PPE mans & ups , MA mounts & TC Brace ,NOS, Full Billet Trans, Suncoast 10531-3D , 3.42 Gears, BT lockup box, 18x9 Raceline Assualts Hooiser Drag Radials 325/45/18s . TUNED by MARK@DANVILLE. Engine by Jason Walker San Marcus Tx Best 60'---1.44. Best 1/8---6.39@105.92. Best 1/4---9.978@136.39
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