Converter Involuntary Lockup When Cold - Competition Diesel.Com

biggy238 · 03-22-2023, 02:33 PM

I've had an annoying issue since going to the triple disc when I assembled the Ford. It was supposed to be a DPC converter but the last time it was out I found Suncoast branding. I had sent it off to be cleaned at DPC when the trans fragged out a couple of years back.

Anyway, if ambient is at or below 59 degrees and the trans is cold soaked, it will apply the clutch right about the 1-2 shift point and shift locked from that point on. It will unlock as expected when slowing down, and I can only get it to do it on the first cold launch. Idling doesn't affect it.
I don't suspect it to be valve body related because this valve body is the same one I've run since 2007 with this trans, and it was sent to firepunk to be cleaned an reassembled.
I can't verify there was an issue before the trans failed because that happened during spring time and this issue only appeared in the later months.
It is not being electronically controlled to do this and the system works as expected with a little heat.

I remember another member having this issue but haven't had the chance to search.
LMK if anyone knows what is causing it

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95cummins5.9 · 03-22-2023, 06:21 PM

Which transmission?

*Snedge* · 03-22-2023, 06:37 PM

Call Phil. He knows some shit about fluid dynamics ( torque conversion). Sounds like a TC issue to me, but the good news is it's spring time and 59 degrees won't be an issue soon.

56cummins · 03-23-2023, 11:04 AM

Does firepunk have any input? Let us know what you find.

biggy238 · 03-23-2023, 02:05 PM

I haven't called anyone yet, I like to run things by here first. I will update when I have a minute to make some calls.

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biggy238 · 03-23-2023, 02:06 PM

Quote:

Originally Posted by Snedge

Call Phil. He knows some shit about fluid dynamics ( torque conversion). Sounds like a TC issue to me, but the good news is it's spring time and 59 degrees won't be an issue soon.

I made a video last night because it had been sitting several days..... It wouldn't do it.

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BigPapa · 03-23-2023, 02:20 PM

Of course.

*Snedge* · 03-23-2023, 04:35 PM

Quote:

Originally Posted by biggy238

I made a video last night because it had been sitting several days..... It wouldn't do it.

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Sometime all I have to do is reply in a thread and shit fixes itself. Wouldn't that be great ? I'd close the shop and start a blog or something. Man's gotta eat.

biggy238 · 03-23-2023, 05:36 PM

Quote:

Originally Posted by Snedge

Sometime all I have to do is reply in a thread and shit fixes itself. Wouldn't that be great ? I'd close the shop and start a blog or something. Man's gotta eat.

This made me smile at the end of a shitty day. I need to come see you some time.

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dieselbeef · 03-24-2023, 05:51 AM

my 02 ran good today too..posted issues yesterday...these pos sit for a week and they wanna die...bad as fkg cattle...

*Snedge* · 03-24-2023, 06:39 AM

Quote:

Originally Posted by biggy238

This made me smile at the end of a shitty day. I need to come see you some time.

03-22-2023, 02:33 PM	#1
biggy238 Name: biggy238 Title: Too Much Time Status: Not Here Join Date: Aug 2008 Location: Just North of Wrong Member`s Gallery Posts: 10,859	Converter Involuntary Lockup When Cold I've had an annoying issue since going to the triple disc when I assembled the Ford. It was supposed to be a DPC converter but the last time it was out I found Suncoast branding. I had sent it off to be cleaned at DPC when the trans fragged out a couple of years back. Anyway, if ambient is at or below 59 degrees and the trans is cold soaked, it will apply the clutch right about the 1-2 shift point and shift locked from that point on. It will unlock as expected when slowing down, and I can only get it to do it on the first cold launch. Idling doesn't affect it. I don't suspect it to be valve body related because this valve body is the same one I've run since 2007 with this trans, and it was sent to firepunk to be cleaned an reassembled. I can't verify there was an issue before the trans failed because that happened during spring time and this issue only appeared in the later months. It is not being electronically controlled to do this and the system works as expected with a little heat. I remember another member having this issue but haven't had the chance to search. LMK if anyone knows what is causing it Sent from my motorola one 5G 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

03-23-2023, 11:04 AM	#4
56cummins Name: 56cummins Title: Too Much Time Status: Not Here Join Date: Mar 2014 Member`s Gallery Posts: 736	Does firepunk have any input? Let us know what you find. __________________ 95 cummins

03-23-2023, 02:05 PM	#5
biggy238 Name: biggy238 Title: Too Much Time Status: Not Here Join Date: Aug 2008 Location: Just North of Wrong Member`s Gallery Posts: 10,859	I haven't called anyone yet, I like to run things by here first. I will update when I have a minute to make some calls. Sent from my motorola one 5G 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

03-23-2023, 02:20 PM	#7
BigPapa Name: BigPapa Title: Truckless Status: Not Here Join Date: Jan 2008 Location: Springfield, TN Member`s Gallery Posts: 5,034	Of course. __________________ Scott 2003 Avalanche Z71 Common sense is like deodorant. The people that need it most never use it.

03-24-2023, 05:51 AM	#10
dieselbeef Name: dieselbeef Title: dick doggin Status: Not Here Join Date: Jul 2007 Location: myakka city florida Member`s Gallery Posts: 9,860	my 02 ran good today too..posted issues yesterday...these pos sit for a week and they wanna die...bad as fkg cattle... __________________ 02 quad cab 4x4 aluminum flatbed 63/68/14 hrvp INJ by weston 4.10 gorend/suncoast method race 01 2500 4x4 quad cab all stock/drag comp 07.5 3500 4x4 dually 4 dr 6.7 d&j extreme, fleece cheetah, gorend triple, cat filters, rip wrongway...

03-22-2023, 06:37 PM	#3
Snedge Name: Snedge Title: Comp Diesel Sponsor Status: Not Here Join Date: Sep 2006 Location: Western Pa. Member`s Gallery Posts: 18,858	Call Phil. He knows some shit about fluid dynamics ( torque conversion). Sounds like a TC issue to me, but the good news is it's spring time and 59 degrees won't be an issue soon.