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08-17-2018, 03:14 PM
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#1
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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48re won't downshift at a stop.
Ok gentlemen, I've got a trans issue here.
Brand new ATS Stage 6 (I know, I know) behind a fresh built 6.4
Less than 200 miles on it, and now it will not downshift at a stop in drive. If I come to a stop and manually shift to first it will engage and I shift right back to drive.
So I broke out the ATSG manual, and it suggests gov solinoid and transducer are faulty.
Hooked a manual pressure guage up to the governor port.
ATSG says if pressure is 0 in drive, then a servo is stuck.
And if pressure is 7-12psi then the gov solinoid or transducer is at fault....
Ok easy enough, right ?
So I hook up the pressure guage, start the truck and put it into Drive.
Pressure is "average" at 120psi. And I say average because the needle is bouncing wildly between 105 and 135.
Any guidance would be appreciated.
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
Last edited by QMFB; 08-17-2018 at 03:16 PM.
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08-17-2018, 03:18 PM
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#2
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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This was instantly when I put it in drive
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 07:26 AM
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#3
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
Member`s Gallery
Posts: 10,859
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How is the throttle valve configured on this one?
I *think* this is probably a flooding governor pressure solenoid, but would like trans known trans guys to weigh in.
Sent from my XT1575 using Tapatalk
__________________
Check out @bdmaximusworx
05.5 Campanella White TDi Jetta 5spd 45.5MPG
-Little Sexy
'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
Insta @trash.panda250
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08-18-2018, 09:59 AM
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#4
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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It's early 04 with the TV cable.
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 11:12 AM
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#5
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Name: Justappumped24v
Title: Too Much Time
Status: Not Here
Join Date: Feb 2016
Location: Illinois
Member`s Gallery
Posts: 1,311
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Quote:
Originally Posted by QMFB
It's early 04 with the TV cable.
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Adjust the throttle valve, it’s by the driver’s side under a black cover on the front of the engine APPS
__________________
05 QCSB24v HTD 6.8L, DDP fueling PDD shifted
2011 MCSB 6.7, built 68rfe
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08-18-2018, 11:30 AM
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#6
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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Well I feel like a tard... Just realized I had my pressure guage hooked to the accumulator port yesterday, not the governor port. Doh !
I'm gonna go out shortly and test again in the correct port.
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 11:31 AM
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#7
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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Is 120psi too high for line pressure in D and 0 mph ?
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 01:05 PM
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#8
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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Hooked the mechanical guage up to the correct port, started the truck and placed it in Drive with brakes applied...
Pressure reading is 0.
WTH ?
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 01:34 PM
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#9
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Name: mikmaze
Title: Too Much Time
Status: Not Here
Join Date: Apr 2009
Location: Fairfield NJ
Member`s Gallery
Posts: 4,292
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from your first post, sounds like a servo is stuck........
__________________
04.5 Qcab shorty EVIL TWIN CP3's 100 % over nozzles, ats 3 piece, HTT 64 71 13 ss over S480, arp's , GOEREND , Hamilton 181 210 & valve springs, UDC beta
2006 Liberty CRD w/ GDE eco
'91 JD 1070 dzl
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08-18-2018, 02:03 PM
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#10
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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I'm hoping not. Went way over budget building this truck, and even though this trans is brand new, my warranty is over. So, I'm hoping something cheap will be the fix for now, lol.
Checked pin #2 at the case connector with the key on. Got 4.99 volts... So that's good at least.
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 02:14 PM
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#11
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Name: biggy238
Title: Too Much Time
Status: Not Here
Join Date: Aug 2008
Location: Just North of Wrong
Member`s Gallery
Posts: 10,859
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Did you adjust your throttle valve?
I'm almost certain that's the issue now that you have the gauge sorted.
Sent from my XT1575 using Tapatalk
__________________
Check out @bdmaximusworx
05.5 Campanella White TDi Jetta 5spd 45.5MPG
-Little Sexy
'10 Silver F250 CCLB 4X4 6.4L cummins Swapped
Insta @trash.panda250
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08-18-2018, 02:19 PM
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#12
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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Throttle valve is set with about 1/8" of slack @ 0% throttle... So it can't get any lower ?
Probed pin #4 (governor pressure sensor signal) at the case connector, plugged in, key on.
Got .446 volts.
That's about .2 volts low according to the ATSG... Issue ?
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 02:44 PM
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#13
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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Probed pin #5 at the case connector, plugged in, engine RUNNING in Drive.
Got 1.2 volts and change. Some fluctuating.
ATSG is showing it should be about 8.3 volts ???
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 02:58 PM
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#14
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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This final paragraph says 8.3 volts OR LESS. But it also says 12psi (I would assume ANY psi) but my mechanical guage reads 0 psi.
And there is no "path" in this manual for that situation ?
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 03:31 PM
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#15
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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Could really use some help here. I built my own 6.4 engine, and enjoyed every minute of it... But I AM NOT a transmission guy ! Lol ��
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 04:35 PM
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#16
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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This showed up. P0713, Trans temp sensor voltage too high.
Don't know if this helps diagnostic.
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 04:38 PM
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#17
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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This is with key ON and engine NOT running.
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 06:20 PM
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#18
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Name: T-MAN
Title: misunderstood
Status: Not Here
Join Date: Sep 2008
Member`s Gallery
Posts: 352
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Does it take off in first the first time you drive it for the day? gov. pressure should almost match road speed. If you can take it for a cruise monitor the pressure and see if it falls to zero at a stop. Not sure if ats still uses a VBA valvebody assist to cheat the voltage to the governor pressure solenoid, dtt also had a little box with a small screw to change voltage, this is what I run on my 03. Let us know im sure barney will get straightened out,,,,
__________________
2001.5 ppump allison 11.399@ 117.90 6850#
1997 rcsb 12v 6.7 9.38 @ 146.54
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08-18-2018, 06:36 PM
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#19
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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Yes, it will take off in first gear when the truck is first started. After that it needs to be manually shifted into first at every stop, or it will take off in second (or third?).
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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08-18-2018, 06:38 PM
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#20
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Name: QMFB
Title: Fastest Welder in Texas
Status: Not Here
Join Date: Apr 2016
Location: Corpus Christi, TX.
Member`s Gallery
Posts: 1,061
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Im not a fan of "throwing parts" at a problem, but it seems my only solution right now is to just replace the transducer and the Gov solinoid.
Hate to do that, because the diagnostics I ran were "inconclusive" to say the least.
__________________
04 CCLB DRW - 6.4 Cummins, HPTuners, 80% S&S, 10mm S&S CP3, AD165, s464 /s475, full billet 48re, Arp's EVERYWHERE, mild head work, lots of time and money... And never done.
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