Ford F53 Chassis MotorHome P0715 P0720 speed sensor codes Please help!
#16
#17
The motorhome date is irrelevant. It is the chassis date that's important. By 7/99 the E4OD was out of production and all F-Series used the 4R100. That's what yours had/has. Somebody has really cobbled things together. It's never going to shift right without the TSS and OSS. You can't get those signals anywhere else.
#18
The motorhome date is irrelevant. It is the chassis date that's important. By 7/99 the E4OD was out of production and all F-Series used the 4R100. That's what yours had/has. Somebody has really cobbled things together. It's never going to shift right without the TSS and OSS. You can't get those signals anywhere else.
#19
#20
No speedo gear in tranny... I believe it gets the speedo signal from VSS in the pumpkin... Thanks for inputting!
#21
hey guys, I just thought of something, when I replaced the VSS on the Pumpkin, I noticed the U Joint assy between the Drive shaft and rear diferential was brand new. Could it be that whoever installed it turned it like 180 degrees from where it was and now the driveshaft (which was never disconnected from the trans) and the rear diferential are out of timing like 180 degrees? could there be a timing off now between the transmission and rear diferential and being that the VSS is in the differential, it could be throwing those codes? the P0720 comes on as soon as it shifts to 2nd gear and the P0715 comes on in about 5 miles? Please let me know your thoughts!! Thanks in advance!
#22
That must be it! The out of phase driveshaft has caused two sensors and their associated wiring to vanish into thin air! You've solved the mystery. Now if you put the driveshaft back where it should be the wiring and the two missing sensors will reappear.
If you recognize how ridiculous what I wrote is, you'll see just how impossible what you asked is. There is no timing between the transmission and the rear axle.
I've said it before, and I'll say it now for the last time. Without the TSS and OSS sensors and their associated wiring this unit will NEVER work properly.
Good luck fixing this, I'm through.
If you recognize how ridiculous what I wrote is, you'll see just how impossible what you asked is. There is no timing between the transmission and the rear axle.
I've said it before, and I'll say it now for the last time. Without the TSS and OSS sensors and their associated wiring this unit will NEVER work properly.
Good luck fixing this, I'm through.
#23
That must be it! The out of phase driveshaft has caused two sensors and their associated wiring to vanish into thin air! You've solved the mystery. Now if you put the driveshaft back where it should be the wiring and the two missing sensors will reappear.
If you recognize how ridiculous what I wrote is, you'll see just how impossible what you asked is. There is no timing between the transmission and the rear axle.
I've said it before, and I'll say it now for the last time. Without the TSS and OSS sensors and their associated wiring this unit will NEVER work properly.
Good luck fixing this, I'm through.
If you recognize how ridiculous what I wrote is, you'll see just how impossible what you asked is. There is no timing between the transmission and the rear axle.
I've said it before, and I'll say it now for the last time. Without the TSS and OSS sensors and their associated wiring this unit will NEVER work properly.
Good luck fixing this, I'm through.
#24
It's fairly obvious you got screwed on this purchase, either by the dealer or the original owner. One of them did something goofy which wasn't completely disclosed and you're just now trying to unravel it after the fact.
Bottom line is that, until the whole thing is restored to the factory configuration, we really cannot help you.
Bottom line is that, until the whole thing is restored to the factory configuration, we really cannot help you.
#25
#26
I guess my question would be - to where would you connect the missing sensors if you were to somehow install them? I read through this pretty quickly but it seems to me you don't seem to have some of the pins that some of the diagrams say your computer should have? Nor can you locate any stray wiring + connectors that are missing their sensors? Nor do you have the actual sensors installed that FTE knowledge says you should have?
Perhaps somebody installed an incorrect replacement computer; perhaps the missing wires were purposely cut off at the harness; perhaps the transmission has been replaced with something that "will work" but is not quite correct; perhaps you've been screwed, and somebody reset the codes which allowed it to run for a short while during a test drive, thereby hiding the problems.
I would do some more homework and try and find some actual factory documentation describing what was originally equipped...
Perhaps somebody installed an incorrect replacement computer; perhaps the missing wires were purposely cut off at the harness; perhaps the transmission has been replaced with something that "will work" but is not quite correct; perhaps you've been screwed, and somebody reset the codes which allowed it to run for a short while during a test drive, thereby hiding the problems.
I would do some more homework and try and find some actual factory documentation describing what was originally equipped...
#27
Yes, really. I have said many times that you MUST have those sensors or it isn't going to run right. There is no way around that. There is no other way to get the signals for those sensors.
As I've said before that's impossible. You can't do it, I can't do it.
As I've said before that's impossible. You can't do it, I can't do it.
#28
[QUOTE=Mark Kovalsky;15597285]Yes, really. I have said many times that you MUST have those sensors or it isn't going to run right. There is no way around that. There is no other way to get the signals for those sensors.
As I've said before that's impossible. You can't do it, I can't do it.[/QUOTE]
Mark, how long would you expect it to run semi properly with those signals? Is it possible that the PCM memory was cleared right at delivery and it took a bit of driving for symptoms to show up?
OP have you tried clearing the codes and see how it drives? Not that it will fix anything but may help you to see more clearly how it could be ok and now it isn't.
As I've said before that's impossible. You can't do it, I can't do it.[/QUOTE]
Mark, how long would you expect it to run semi properly with those signals? Is it possible that the PCM memory was cleared right at delivery and it took a bit of driving for symptoms to show up?
OP have you tried clearing the codes and see how it drives? Not that it will fix anything but may help you to see more clearly how it could be ok and now it isn't.
#29
Mark, how long would you expect it to run semi properly with those signals? Is it possible that the PCM memory was cleared right at delivery and it took a bit of driving for symptoms to show up?
OP have you tried clearing the codes and see how it drives? Not that it will fix anything but may help you to see more clearly how it could be ok and now it isn't.
OP have you tried clearing the codes and see how it drives? Not that it will fix anything but may help you to see more clearly how it could be ok and now it isn't.
Update: Friday, after leaving autozone, the dude erased the codes, and i drove it around for 45 minutes and it never stalled. than i drove it home and parked it and it restarted fine. yesterday (saturday), i went to drive it again and no SVC ENG SOON Light on when i started it, but after driving it for about 6 miles, The light came on, and soon after it stalled again. so than noticed the light is coming on and stalling after 2 driving cycles. So since I'm planning to go on a trip in 3 weeks i bought my own scanner. Scanned and same codes! but if i keep clearing the code before it hits the 2nd driving cycle when the codes are "Pending", it never stalls!!
#30
My friend, its obvious that I have to get to the factory configuration! we all know that! you really cannot help me? (BTW that was rude) Well, if I didn't want to get it to factory configuration, I wouldn't be here trying to get everyones help!! that's why im here!! don't say "We really Cannot help you"!! that's what forums are all about dude!! we are supposed to help each other out!! im sure you needed forum help before, and you got it!!
Thanks for that Krewat! I really appreciated! I think that's what its all about!! Maybe some day someone will need info from this thread and we all we'll end up helping them!