Why register? ...To Enhance Your Experience
+ Reply to Thread
Page 1 of 2 12 LastLast
Results 1 to 20 of 31
  1. #1
    MembersZone Subscriber
    Join Date
    Jan 2002
    Location
    southern ky.
    Posts
    53

    Angry F-550 Transmissions

    We just dumped our third transmission in less than 20,000 miles. My question is, is anyone else having problems with Ford automatic transmissions/ powerstroke? I admit that this truck was/is overloaded with full compartmentation and 400galon tank.... This truck is set up as a fast attack/brush truck. Yes i know we should have gone with a manual tranny but that is hind site.


  2. #2
    dazed and confused Resq14's Avatar
    Join Date
    Dec 2000
    Location
    New England
    Posts
    1,993

    Default

    Out of curiosity, which engine do you have... the old 7.3L or the new 6.whateverL?
    God Bless America!Remember all have given some, but some have given all.
    Google Is Your Friend™Helpful forum tip - a "must see" if you're new here
    Click this to search FH Forums!

  3. #3
    MembersZone Subscriber N2DFire's Avatar
    Join Date
    Feb 2000
    Location
    S.W. Virginia
    Posts
    1,286

    Default

    I would post your questions & nature of problem(s) you've had over in http://www.fordtrucks.com/forums/

    This is NOT affiliated with Form Motor Company. It is purely an enthusiast message forum, however there are some top notch Ford Mechanics along with some very knowledgeable enthusiast/owners posting there.

    Your questions would most likely get the best responses in either the Transmission, Differential, Axle and Transfer Case forum or in the Super Duty And Heavy Duty forum.

    Best of luck.
    Take Care - Stay Safe - God Bless
    Stephen
    FF/Paramedic
    Instructor

  4. #4
    Forum Member
    Join Date
    Dec 1998
    Posts
    629

    Default

    We have a new F-550, 4 x 4, 6.0L Powerstroke and five speed auto light rescue. It goes about 15,500 lbs with a five person crew. No problem other than we have some new tranny cooler lines on order due to leakage. Ford shop says they have been a problem.

    You say you are overloaded. Does the rig exceed the axle gvw and the 17,500 lb gcw? If so you need to reduce weight.

    Have you tried running the trans in the tow/haul mode? This keeps the tranny from "seeking" between overdrive and the next lower gear.

    Stay Safe
    IACOJ

  5. #5
    MembersZone Subscriber
    Join Date
    Jan 2002
    Location
    southern ky.
    Posts
    53

    Default more info

    A little more information. This is a 1998 F 550 with a 7.3l powerstroke. We are not over the wt. limit for the truck per the books. However by the seat of the pants may be a different story. We were told by evi that this was one of the first 550's that they had built. I should also note that this truck has 4 wheel drive with locking hubs. As for the tow/ haul the only switch i can find is Overdrive off. I will admit that this isn't used often enough due to lack of knowledge by the drivers. We are a Volly dept and this truck runs first due to everything except structures. Simple to drive compared to a engine or tanker. Thanks for the comments and links.

  6. #6
    Forum Member
    Join Date
    Dec 1998
    Posts
    629

    Default

    The "overdrive" switch serves the same purpose on your four speed automatic. Check the owners manual under towing and hauling.

    I don't know that you would have fared any better with the manual. We had a 95 Chevy one ton with 300 gal of water and a utility box. The tranny held up but most of our guys could not comprehend that you don't ride the clutch. Averaged about two heavy duty clutches a year until we sold it.

  7. #7
    Forum Member
    Join Date
    Nov 2003
    Posts
    292

    Default

    So far we have about 8,000 miles on our 2002 F-550 with the 7.3 powerstroke engine and automatic transmission and we have had 0 problems with it .

    Our 2nd F-550 2002 rescue with the 7.3 engine has had no problems either but our 3rd F-550 2003 rescue has had a couple minor problems but that unit has the new 6.0 engine and that engine still had some bugs to be worked out before they put it into full production

  8. #8
    Forum Member
    Join Date
    Jan 2003
    Posts
    243

    Default

    I'd try finding a way to turn off the overdrive. For good. That may be your problem. Too much weight for the OD.

    My first volly dept had 93 chev 3500 with a 454 and 4 spd. stick. We also went thru clutchs like oil changes. Couple of the guys didn't understand you should use L when driving thru ditches and etc. Just too much weight to be driven hard. That truck would get crazy at 85.

    The truck was a donation.

    Stick with the Auto.

  9. #9
    Forum Member Rescue101's Avatar
    Join Date
    Jun 2001
    Location
    Bridgton,Me USA
    Posts
    8,162

    Default

    Ford has had some issues with the "new" automatics.There are a couple outfits that build a stronger unit for use in ambulances and other high use(FD)applications.The only thing I can suggest is to get the biggest tranny cooler you can get put on and in series with the factory cooler.Leaving the OD defeated isn't a bad idea either unless you do Interstate.This should be driver selectable on this truck.Multiple failures are NOT the norm,see if you can find out what failed and I can probably get you more concise information.T.C.

  10. #10
    Forum Member Fire304's Avatar
    Join Date
    Jun 2002
    Location
    At the Helm
    Posts
    1,174

    Default

    Grandmaster 101, is the "new" tranny you speak of the standard issue Ford 4 spd or the newer Allison auto they are selling with the 6.0? We're getting one soon and are planning on getting the Allison.

    As to the overdrive issue, I know there is an aftermarket kit for police Crown Vic's to default the OD into lockout (have seen it in an older Galls), in otherwords it is normally off when you start up and you hit the OD button to engage it.

    As to driving w/OD disabled, depending on the gear ratio of the rear end and the top speeds you run on your area roads it may not be a wise idea. If you're running the engine in the high 3000 rpm range you are not being nice to both the engine and the tranny. Unfortunately with a low rear end and a medium speed engine you actually may need the OD to drive in your area.
    ______________________________ __________________
    If you are new to posting please CLICK HERE for an essential lesson
    ______________________________ __________________
    A bad day in the boat is better than a good day in the office. And in my case the office is a boat!

    IACOJ Fire Boat 1

  11. #11
    Forum Member
    Join Date
    Nov 2003
    Posts
    292

    Default

    The F-550s come standard with a dana 135 rear axle with a 5.38 or 4.88 ratio i think . Thats a huge rear and low ratio
    It would rev high at highway speeds without O/D

    The new ford automatics behind the new 6.0 g2 powerstroke are torqshift 5 spd automatics . They still put the old 4r100 behind other engines such as the 6.8l triton v-10 and 5.4 v-8 .

    I think you might be thinking of general motors they are the ones who use allisons in their pickups which is a smart move that makes their superior pickups even better ( 8.1 L and 6.6 duramax only get the allison)
    Last edited by k1500chevy97; 11-05-2003 at 09:53 AM.

  12. #12
    Forum Member Rescue101's Avatar
    Join Date
    Jun 2001
    Location
    Bridgton,Me USA
    Posts
    8,162

    Default

    Ah 304 my friend,obviously you've dropped your reading glasses again.I refer to the E4od model,which around town you leave LOCKED OUT if you want the tranny to last.If you look CAREFULLY at the post,I recall mentioning something about doing Interstates.Now knowing that you wouldn't think of venturing onto the interstate; think of the OD as "prairie"gears.Allison in a Ford?Now we've sunken to a new low,puttin' Cheby parts in a GOOG truck.All locking Od out does is prevent the TCC solenoid from locking the mainshaft together.Now I know Ford is liking the high 4 low 5 gearsets.I don't but with a OD tranny they work.The E4OD can be "Bulletproofed" but it's costly particularly behind the 6.0 or the 7.3 because of torque input.Every 10 degrees you lower working tranny temps will effectively double tranny life so coolers are an important fact of life.T.C.
    Last edited by Rescue101; 11-05-2003 at 09:26 AM.

  13. #13
    Forum Member Fire304's Avatar
    Join Date
    Jun 2002
    Location
    At the Helm
    Posts
    1,174

    Default

    No, reading glasses were properly installed and I read the whole post. I was under the impression that we were getting an Allison with our 550, but I guess the old man must be misinformed. As to venturing out on the interstate, that's not the only place were we get up to decent speeds (ironically our rescue pumper and tower will only do 60mph anyway). Two nights ago I was responding down Rte1 and I was doing 45mph (about 10 over the posted). There are also a lot of rural roads where the posted is 50mph in our state. Knowing how our two Ford E series ambulances scream with the OD locked out (I usually lock it out when driving in the city) it occured to me that perminantly disabling the OD as was mentioned in another post here might be a severly limiting factor.

    As to the cooling, there I am 100% with you.
    ______________________________ __________________
    If you are new to posting please CLICK HERE for an essential lesson
    ______________________________ __________________
    A bad day in the boat is better than a good day in the office. And in my case the office is a boat!

    IACOJ Fire Boat 1

  14. #14
    dazed and confused Resq14's Avatar
    Join Date
    Dec 2000
    Location
    New England
    Posts
    1,993

    Default

    An Allison transmission on the new F550?

    That's news to me!

    God Bless America!Remember all have given some, but some have given all.
    Google Is Your Friend™Helpful forum tip - a "must see" if you're new here
    Click this to search FH Forums!

  15. #15
    Forum Member Rescue101's Avatar
    Join Date
    Jun 2001
    Location
    Bridgton,Me USA
    Posts
    8,162

    Default

    Probably news cause it's another urban legend.Talk about givin' a guy heart failure!No,Ford's coming out with a new nightmare,new and improved over the E4OD.Can't wait to see how this pans out,hope it's better than the rear mains on the 6.0.T.C.

  16. #16
    Forum Member Fire304's Avatar
    Join Date
    Jun 2002
    Location
    At the Helm
    Posts
    1,174

    Default

    Originally posted by Resq14
    An Allison transmission on the new F550?
    When I read the bid from the local company it stated that the gas engine was only available with a "standard 4 spd." I asked the chief for clarification, after all he has a 5 or 6 speed in his V-10 engined F-350. The answer I got was that it was a "standard duty 4 spd auto" and that the diesel was available with an heavy duty allison tranny. I just forwarded the e-mail to you so you can see I'm not smoking crack tonight. I'm not making this stuff up folks, just repeating what I heard
    ______________________________ __________________
    If you are new to posting please CLICK HERE for an essential lesson
    ______________________________ __________________
    A bad day in the boat is better than a good day in the office. And in my case the office is a boat!

    IACOJ Fire Boat 1

  17. #17
    MembersZone Subscriber
    Join Date
    Jan 2002
    Location
    southern ky.
    Posts
    53

    Default Crud in the oil cooler

    Got our truck back in service. Report from the dealer service dept. was that the Oil cooler had a bunch of grass seed and other debris from a field fire. Still going to install a trany temp gage and put a sign on the dash telling the driver to disable the OD on every run. thanks for all of the good advice.

  18. #18
    Forum Member SCOOBY14B's Avatar
    Join Date
    Sep 2001
    Posts
    360

    Default 550

    What you have is a 1999. They (F-550) were not produced until 1999. The transmission is the 4R100, which is a VERY weak transmission.

    What kind of axle ratio do you have? Should be 4.88.

    You need to find some portable scales and weigh the truck at each wheel, axle, then total.

    We have F-550 four door 2wd squads with 14' EVI body. Heaviest things on it are two complete sets of Homaltro tools, PPV fan, Smartpower 7.5kw PTO generator and factory winch bumper with 12klb Warn. We dont have too much room to spare when fully loaded. I would venture to say that depending on chassis (reg, super, crew cab), 4wd, and carrying water and pump...you ARE overloaded. Dont take anyones word, weigh it yourself.

    If you are overloaded, the tranny problem is the least of you worries. If you dont lighten the truck and you are involved in an accident, your truck will be taken as it was in accident (load and crew) and weighed. If it IS overloaded those people you hit, no matter whose fault it was will own you department, driver, and municipality.




    __________________
    Last edited by SCOOBY14B; 11-08-2003 at 02:12 AM.

  19. #19
    Forum Member
    Join Date
    Nov 2003
    Posts
    292

    Default

    Our F-550 rescues when loaded weigh in at just shy of 15k. There is still a little bit of weight to play with there until we reach our max of 17500 .
    I have no clue on the weight of our F-550 brush units i would imagine the weigh about the same
    As with the poster above if you are overweight and if something happens your *** is grass

    Last edited by k1500chevy97; 11-08-2003 at 07:15 PM.

  20. #20
    Forum Member
    Join Date
    Jun 2001
    Location
    IL
    Posts
    71

    Default

    gregblewett, glad to hear your truck is back on the road. Just to clarify, as Scooby said the F550 came out in 99, 98 on up have the 4R100 not the E4OD. The 4R100 is basically a E4OD with all of the known factory upgrades in it, as well as some others that never were done to the E4OD. The 4R100 is not a VERY weak trans, it is rather strong compared to the E4OD. The 6.0 has a Torqueshift auto trans, which is a completely new trans and has been real strong so far. The stock oil coolers are not the best even on 1 ton applications, get a aftermarket one. The majority of Fords diesel tecs are not known to be the sharpest knives in the drawer. There are two companies that build VERY strong E4OD and 4R100's, some consider them to be "bullet proof" contact Brians Truck Shop in Arkansas, or Suncoast Transmissions, I believe they are in FL. Ford will only build the trans to their latest specs, and since both trannies are no longer offered in diesels there are no more updates being done. The BTS trans in my own F250 cost me around $3200 (I went through 4 E4OD's in 160k miles before getting a BTS trans). As was mentioned before the O/D should be locked out on city driving with the weight you have, and there are companies who do make it possible for the trans computer to default to non O/D mode upon startup. On Trans temps keep it at or below ambient air temp +100 degrees in the summer.If you can not do that, you need a bigger cooler and possibly a cooling fan for when you are not moving. Also seriously consider switching to synthetic trans fluid, it tolerates higher temps better. As far as the cooler getting clogged with stuff and the trans overheating causing a failure, that will happen to any auto trans and would be considered operator error for not inspecting and cleaning the cooler out after driving in the field fire.
    Last edited by GggFF3P; 11-10-2003 at 02:48 PM.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts