Re: Flashing Overdrive 'Off' light on 1995 F-250 7.3L Turbo w/ E40D transmission & C5 Axle
On Sun, 27 Mar 2005 13:38:14 -0800, Cap'n C <email@example.com>
>I'm having a 'sometime' problem with my subject stock F-250 - hoping
>someone may have some ideas about a fix.
>in March 2004, the problem occured the first time at 80,500 miles on
>the vehicle - and I'm the original owner, so know the entire history.
>I was making a right turn from a full stop - right rear wheel spun
>just a bit (may have been a small patch of ice under the wheel) -
>noticed the OD Off light flashing, and shifts - both up and down were
>'harsh' - that is 'jerky'. Took it to Ford garage, they said had set
>some kind of fault - I didn't find out the number - but they reset it,
>and said checked out OK. I asked what might cause the problem, they
>hemmed/hawed - thought could be lots of things, but didn't really know
>- suggested flush transmission/torque converter - which they did -
>total $216 P/L.
>In May 2004 - same problem again at 82,250 miles. This time, problem
>started when I made a left turn from a full stop going up a slight
>grade - seemed to kind of 'hang on' in gear before shifting at about
>40 mph after about a quarter mile - then the light began flashing, and
>the jerky shifts again. Again to Ford garage - found EEC test code
>1728 - Slip Fault. Cleared the code, road tested - checked OK. Best
>suggestion this time was could be some sort of a seal problem in the
>torque converter - but best to just drive, ans see if I could make the
>problem recur. Cost $155 - all labor/tax - no parts.
>Just today 27 Mar 2005 at 89,508 miles, same problem again - was
>making a left turn into my development from full stop, and light
>started flashing - shifts jerky/harsh again. I'll call Ford again
>tomorrow for an appointment - they've said won't hurt to drive until I
>can get it in for repair - but it's really harsh on the shift.. The
>Ford X-mission/drive-train guy sounds like he's competent enough, and
>doesn't want to just start replacing parts which may not be the
>problem, but it's small town, so really hard to know.
>As for me, I'm mid-late sixties, retired, and kind of a ho-dad driver
>- you can tell the vehicle is low mileage, and I'm really easy on it -
>no jack-rabbit starts, etc. Only towing is a 22' boat for short
>(20-25 miles) 2 or 3 times a year. Maintenence kept up well - for
>instance - damnable Cam Position Sensor just replaced at 88,500 miles.
>Any ideas anyone?? Will appreciate any thoughts as to what might be
>the cause. Frankly, only pattern I see is seems to happen just after
>starting from a stop, maybe something to do with a turn, or maybe
>something to do with relatively low speed shifting. I'll update this
>with the code they find when I have it.
Thanks to Tyrone & HiltonFarms for the replies.
Just got off the phone - here's the follow-up from Ford as I have it.
They took the PU in on Wednesday, 27 Mar - found the same code as last
year in May - 1728 - Slip Fault. However, this time, there were other
electrical problems found too - which the service writer (Haven't been
able to talk to the 'tech', yet) described as making the transmission
confused about what gear it was in - as he described, the dash
indicator could be in Drive 1 or 2, but the transmission was getting
some other signal. The tech didn't know what to do for sure, so
contacted Ford tech support. After much on-line discussion, Ford tech
support issued a series of tests and electrical measurements to be
done - the results of those tests indicated an electrical problem in a
solenoid in the torque converter. Bottom line, Ford is recommending
one of two options
1 - repair existing transmission/torque converter - total about $3100
minus about $300 cost so far - warranty is 1 year/12000 miles
2 - replace existing transmission/torque converter with a Ford rebuild
- total about $100 more than option 1 - warranty 3 years/36000 miles
- kind of a no-brainer, as the rebuild would also have numerous
upgrades recommended since this transmission was first issued.
The cost seems fierce to me, but perhaps not so far out of line with
what HiltonFarms mentioned - also, another friend says just heard of a
transmission replacement at a cost of $3000. So, expect I'll take my
whipping and get the re-built. Don't really want to replace the truck
- and that's kind of the way vehicles go, sometimes!
Once again - thanks to Tyrone & HiltonFarms for your thoughts.