suncoast tranny blues - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by f350bart, this thread has received 25 replies and been viewed 2491 times.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 26 (permalink) Old 12-21-2006, 05:28 PM Thread Starter
Senior Member
 
Join Date: Nov 2006
Posts: 511
Points: 3,007
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via MSN to f350bart
suncoast tranny blues

this is the second suncoast that ive had go bad on me this year, it loses overdrive, reverse, and then tow haul light blinks on and off any ideas?
f350bart is offline  
Sponsored Links
Advertisement
 
post #2 of 26 (permalink) Old 12-21-2006, 05:55 PM
 
Join Date: Sep 2006
Posts: 171
Points: 1,519
Thanks: 0
Thanked 0 Times in 0 Posts
No clue but I was thinking about getting one so let me know if you figure out what is wrong with it. I don't want to be replacing them all the time if I get one.:Thumbup:
dieseldocFX4 is offline  
post #3 of 26 (permalink) Old 12-21-2006, 06:05 PM
Addicted Mechanic
 
Join Date: Jun 2005
Posts: 196
Points: 1,736
Thanks: 0
Thanked 1 Time in 1 Post
Send a message via AIM to CLR95
How bout you fill out your sig and let us know what kinda truck, mods list etc. Have you called suncoast about it? I would think theres a warranty involved if you have been through two in less than a year.

- C.R.

Ford Diesel Tech/Junkie

OLD95 F250 XLT Reg Cab 4x4 7.3 Hand Shaker
NEW04 F250 Lariat Crew Cab 4x4 6.0 Auto Mods XCAL 2, Custom Exhaust exiting in front of rear tire, 3 pillar pod with Isspro Gauges
CLR95 is offline  
post #4 of 26 (permalink) Old 12-21-2006, 11:41 PM
Member
 
Join Date: Sep 2005
Posts: 44
Points: 1,234
Thanks: 0
Thanked 0 Times in 0 Posts
I think you had numerous responses to this at the other site. If not you, then go look at it for the same problem and some very good suggestions as to the cause and fix.
xman is offline  
post #5 of 26 (permalink) Old 12-22-2006, 04:03 AM
Suck,Squish,Bang,Blow
 
StuckinMud's Avatar
 
Join Date: Jul 2005
Posts: 650
Points: 21,456
Thanks: 0
Thanked 1 Time in 1 Post
You have officially toasted your direct drive clutches!!! I am too in the process of having my suncoast rebuilt. Through this I have spent alot of time on the phone with the Suncoast engineer regarding the "whats up" with this transmission. Well its just like Tadd from Elite Diesel said in my other thread (BTW still have never had a response from him:shrug: ), who is a Suncoast dealer, says...the problem is there is not enough pressure to apply the direct clutch so it will hold the addtional power we are throwing at it. They are trying to have new parts manufactured that will solve this issue. This will also be retrofitable to stock units. I forsee alot of stock trannies living alot longer with this mod. There has been a recent progression in the strive to build better parts from suncoast. Those parts specifically address the direct clutches but until the pressure is available the clutchs will never live long under extreme conditions. Also keep in mind that there is very limited availability of parts for the 5R compared to the 4R. The manufacturers are extremely busy just keeping the OEMs supplied, so for them to branch out and build specialty parts.. its just not a priority for them. I suggest doing as I have to..rebuild it with the latest in parts and be easy on it through the winter, there should be a strong fix available by spring that won't require a complete teardown.

2004/04 F-350 6.0L(b.o.d. 12-11-03)
Just a couple of Mods :Thumbup:

More toys than time...
StuckinMud is offline  
post #6 of 26 (permalink) Old 12-22-2006, 04:22 AM
TDG Mafia - Booze Runner
 
Snowaholic's Avatar
 
Join Date: Jul 2005
Location: Bend, OR
Posts: 3,705
Points: 28,628
Thanks: 137
Thanked 135 Times in 111 Posts
Forgive if I'm wrong, but isn't it an issue with the supply solenoid that supplies fluid pressure between the converter and the tranny, and then it runs out of range shuts and cause abnormal pressure to the Directs when needed most; and then TOAST. I know that is way generalized, but seems to be a limiting factor beside there is not enough room to add anymore help to the 5R, beside a couple of frictions and steels. It is not like a 4R where you can add extra frictions and steels to all the packs, plus really enhance the VB for a greater fluid flow capacity.

2007 Dodge 3500 MegaCab Laramie CTD 4x4 Patroit Blue Just a bunch of Go fast parts and programing
Snowaholic is offline  
post #7 of 26 (permalink) Old 12-22-2006, 05:15 AM
 
Join Date: Dec 2006
Posts: 119
Points: 892
Thanks: 0
Thanked 0 Times in 0 Posts
i heard people are working on a diferent solenoid to help keep the pressures high enough..... this will be an incredible advancement and most will be jumping on the phone and orderin them up when available... easy to install also... rmove pan, replace solenoid, install pan... i know ill be all over it.....
hotpursuit is offline  
post #8 of 26 (permalink) Old 12-22-2006, 10:56 AM
Got Torque?
 
ralphinnj's Avatar
 
Join Date: Aug 2005
Location: North Central NJ
Posts: 2,577
Points: 45,093
Thanks: 96
Thanked 151 Times in 105 Posts
Images: 80
Quote:
Originally Posted by StuckinMud
...the problem is there is not enough pressure to apply the direct clutch so it will hold the addtional power we are throwing at it.
I don't think that is true. I have a Suncoast, and I KNOW I am throwing plenty of power at it. Enough to twist the input shaft.....but tranny is clean every time we open it and runs great.

Ralph

ps, that tranny has been in there 2 YEARS.

Black 2003 F350 Dually, Nothing Stock

Other Rides:

Black 2006 300C SRT8
Black 2012 CTS-V (630HP)
Black 2008 Mercedes E550
ralphinnj is offline  
post #9 of 26 (permalink) Old 12-22-2006, 01:30 PM Thread Starter
Senior Member
Threadstarter
 
Join Date: Nov 2006
Posts: 511
Points: 3,007
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via MSN to f350bart
thanks for the help, i brought it up to the shop last night and they are looking at it today sometime

03 f-350 6.0 leveling kit w/ 35's, sct from innovative, aem filter, 6in single stack, 4 pillar with fuel pres., boost, pyro, and trans temp, suncoast trans, spearco, studs, stock turbo w/ billet wheel, from brian at black widow, and 205cc injectors
f350bart is offline  
post #10 of 26 (permalink) Old 12-22-2006, 11:21 PM
Suck,Squish,Bang,Blow
 
StuckinMud's Avatar
 
Join Date: Jul 2005
Posts: 650
Points: 21,456
Thanks: 0
Thanked 1 Time in 1 Post
Ralph,

Sorry but thats the word directly from suncoast, tadd (in another thread) and the observations of my builder and ATSG. Anyone in the transmission industry knows of ATSG they are the ones who supply most all the indepentants thier tech info (manuals) and support. We also learned about a few concerns(not widely known failures) in the 5R that fortunately I did not have. We have spent hours disecting and reverse engineering this trans taking it above and beyond a rebuild. I will say I'm glad to hear your trans has held up very well so far. It sucks for anyone to have to go through what I have and others have in the quest to keep these trannies alive behind the 6.0l The other variable that comes into play is the usage of the truck. Not just the power put down but haw its put down. I use everything it has got while it works hard (10k in tow with eyes glued to the egt gauge lol) I have all of suncoasts newest parts for the direct and a kit from thier first shipment from transgo of the new updates to the shift kit. This kit changes how they control pressures to prevent reverse blowout which is directly related to the direct clutches. I do have to wonder though if your trans has the transgo kit installed??? If not I wonder if that is why it has survived all you power. The good news is that the longer these are on the road the more parts that will be developed for it. Its getting there its just not there yet.

2004/04 F-350 6.0L(b.o.d. 12-11-03)
Just a couple of Mods :Thumbup:

More toys than time...
StuckinMud is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome