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Transmission Problems

Transporter

Transporter

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My tow haul light and engine light is on throwing these codes.Tranny seemed to go into neutral as well until i shut it off and on then i limped truck to town.These are the codes p0700 trans ctrl sys error.....p1000 monitor check not complete more driving required.....p0757 shift solenoid B stuck on.........p2701 trans friction element B apply time range/ref anybody have any insight to a fix with sensors mabye.Ford wont warrenty this at the town im at because I have larger than stock tires and its a 2000 dollar tow bill home.So id like to try and fix myself.Its on an 06 f-350.Codes were read with a flashpaq 1805 a xcalibrator2 showed no codes.
 
the tires shouldn't void the warranty, that would be illegal unless they can prove the tires were the direct cause of the failure.....Magnuson-Moss act.
 
winter brew said:
the tires shouldn't void the warranty, that would be illegal unless they can prove the tires were the direct cause of the failure.....Magnuson-Moss act.
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i agree tires wont affect warranty, they're BS'ing you. as i have larger tires on my jeep and it never affected the warranty. Only thing tires do is make your speedo off.
 
Im hoping sensors in the transmission and fix myself out here at work.Dont take your truck into Dawson Creek BC ford dealerships if your from Alberta.Apperantly there its voids warrenty if yah have big tires and a digital display of water temp and boost on your dash.Also they charged 140 bucks to run their scanner and pull transmission dipstick.What I had to pay so they would let the tow truck driver that came to pick it up leave with it and bring out to my jobsite.
 
I don't think it is the tires, but it could be....
IF it throws the spedo off, it might confuse the car, because the wheel speed sensors will be reading one thing and the VEHICLE speed sensor which is in the tranny will read another thing, it will know your RPM and therfor it will expect the 2 sensors to match up.

Meaing RPMS will be 2500 and the Vehicle speed in 5th gear should be 60 and the wheel speed sensors might be something like 120 RPM. When you put a bigger tire on everything changes.
 
^^^^^^^What are you talking about, changing the tires size won't affect wheel speed vs the rpm of the vehicle. Tire size affects the distance covered per revolution of the tire because the circumference is larger. The speedo is off because you are traveling faster than it tells you.

That being said, larger tires effectively change your gear ratio and can cause more stress on your drivetrain, but to deny you warranty because you changed tire size is bs. You would have to lift your truck a lot to clear the tires it would take to trash the drivetrain in you f350, and even then it would not be likely. And then it would be the lift that voided your warranty.
 
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moldy said:
^^^^^^^What are you talking about, changing the tires size won't affect wheel speed vs the rpm of the vehicle. Tire size affects the distance covered per revolution of the tire because the circumference is larger. The speedo is off because you are traveling faster than it tells you.

That being said, larger tires effectively change your gear ratio and can cause more stress on your drivetrain, but to deny you warranty because you changed tire size is bs. You would have to lift your truck a lot to clear the tires it would take to trash the drivetrain in you f350, and even then it would not be likely. And then it would be the lift that voided your warranty.
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Your tranny is going one speed, which the vehicle knows from the Vehicle speed sensor in the Tranny. If you put a bigger tire on it will take less revolutions to go the same speed. so tranny is turning at one speed and with the regular tire on it, it will be going say 65 miles per hour. Put a larger tire on it and it will take less revolutions to go the same speed. Put a smaller tire on it and it will take more revolutions.

Modern vehicles have WHEEL speed sensors usually mounted to the hub. This is how any traction control or skid control will work, but this is not the only function. The ECU of the vehicle knows how fast each wheel is turning. Obviously when you make a right hand turn your inside (right side) tires are going slower that your your outside (left) tires. Your ECU also knows the angle at which your steering wheel is turned (say 13 degrees), it then has a mathmatical formula that it does itself automatically, basically vehicle speed (transmission) figured in with steering wheel turn angle, which is compared to the wheel speed sensors. If that is off by a certain percentage (who knows what the tolerances are, they change from vehicle to manufacture), it can trigger a fault code or even confuse the transmission/ecu/sensor.

What I explained might not be the case, but it is something to consider. This is also the reason why have different sized tires on a vehicle is bad. Even tires that are new compared to old worn down tires will cause problems with the Vehicles ECU. (meaning, having two new ones and two old ones on at the same time or any other combination)
 
The wheel sensors are in the hubs wich are at a constant diameter. Changing the tire size will have no affect on the # of revolutions the sensors detect. Plus the manufactures usually have 2 or 3 optional tire sizes that will fit the vehical.
 
Well I have an 8 inch Rize lift and 37's too but whatever the point is they just said they wouldnt warrenty it without even knowing the problem or cause.
 
6Mile said:
The wheel sensors are in the hubs wich are at a constant diameter. Changing the tire size will have no affect on the # of revolutions the sensors detect. Plus the manufactures usually have 2 or 3 optional tire sizes that will fit the vehical.
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Yes, I know they are in the hubs. Changing the tire size WILL affect the # of revolutions. Go to any tire site and look at different sized tires and most sites will tell you RPM (Revolutions per mile). Notice the bigger tires have less revolutions.
 
milehighassassin said:
Yes, I know they are in the hubs. Changing the tire size WILL affect the # of revolutions. Go to any tire site and look at different sized tires and most sites will tell you RPM (Revolutions per mile). Notice the bigger tires have less revolutions.
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Say for example your truck is turning 300 wheel revolutions per minute, at 3000 rpm's on the engine in fourth gear going 65 down the highway. If you put bigger tires on it your truck will still be turning 3000 rpm's in fourth gear, and your wheels will still be turning 300 revolutions, and your speedo will still say that you're going 65. But because of the bigger tires you will actually be going faster. Bigger tires will not affect the number of wheel revolutions, just your speed.
 
Transporter said:
No I have had the truck for two years.The dealer sells them like that with lift kit etc.
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I dont know how ford does it but when I worked at a gm dealer anything that abused the drivetrain could void the warranty(largetires/lifts, engine mods, snowplows,etc..)on our state IM laws changing tire diameter is actually illegal(changes emissions output due to altering engine load)but is seldom enforced...as to your trans..sounds like you lost an electrical shift solenoid..am surprised the dealer didnt throw it on a scanner and check it...
 
Transporter said:
Well I have an 8 inch Rize lift and 37's too but whatever the point is they just said they wouldnt warrenty it without even knowing the problem or cause.
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I have known guys who wouldn't lift a truck until the warranty was up just to avoid problems. Our local chevy dealer was taking a couple new trucks every once and a while and sending them off to be lifted and was not voiding the warranty, I'd press them pretty hard about it. Chevy's are a lot harder to lift right than a F350 (IFS vs Solid axle). If the service guy is giving you a hard time, I'd go above his head, and if you can't get any satisfaction out of the dealer I'd press the issue with ford. Hope they do the right thing. Did you install the lift or was it done at a shop? If it was done at a shop you might try to get them involved or the lift manufacturer.
 
I posted what was wrong at the top.Its not a problem getting it fixed back in Alberta its just the Ford dealer in BC where I was workin wouldnt fix it because they are a bunch of morons.
 
moldy said:
Say for example your truck is turning 300 wheel revolutions per minute, at 3000 rpm's on the engine in fourth gear going 65 down the highway. If you put bigger tires on it your truck will still be turning 3000 rpm's in fourth gear, and your wheels will still be turning 300 revolutions, and your speedo will still say that you're going 65. But because of the bigger tires you will actually be going faster. Bigger tires will not affect the number of wheel revolutions, just your speed.
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No that is incorrect.

The transmission will still turn 3000 RPMS at 65 MPH, but with larger wheels they will be turning LESS revolutions per mile.


Say tire x turns 505 revolutions per mile,
and you go to Tire Z which is two sizes larger, they will be turning something like 470 revolutions per mile.


Go get a tape measure.

Measure out say 12 feet.

Get a regular size jar out of the fridge say a Canning Jar.

Now go get a 5-gallon bucket. Roll each of them accross the space you measured out and count how many revolutions it takes to cover the distance. It will be less for the 5 gallon bucket.
 
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