Question about Cars & Trucks
Not shifting into overdrive
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: f350 automatic transmission
Since you have the same 4R100 as the 7.3L I recommend checking the resistance of the solenoid connectors, it is like sonic said at the rear passenger side and it will be hiding under some flexible heat shielding (it is next to the exhaust pipe afterall..). Specifically, take the resistance (ohms) from pins 1 to 4 doesn't matter which is black or red. It should be 10-20 ohms. You also might have to put a jack under the transfer case, unbolt, drop the support beam and let the whole drivetrain come down a bit for decent access. These pins should be labeled but pin 1 is in the row away from the tab and is the rear-most pin. Replacing the solenoid body is $200 and a pan drop. Grab a few gallons of Mercon!
Posted on Nov 19, 2008
I have that exact same truck and transmission and My Transmission did the exact same thing about a year ago and there was some kind of snap ring inside the transmission that broke. I originally thought it had to be an electirical problem because the truck shifted fine until OD or if i turned OD off. The 4r70w is a light transmission and i would suggest you have a shift kit put in and they make a heavier kit to beef it up.. Sorry its probably not the new you were looking for.
Posted on Apr 15, 2009
sorry to say this trans has to be removed and rebuilt seems like od clutches burnt out-do you tow heavy trailer with truck as you have to tow with od off(push button on shifter)
Posted on Oct 05, 2009
you may be confusing the torque converter clutch engagement with o.d. this trans has a problem with the T.C.C. regulator valve wearing out the valve body bore. this will cause the converter clutch to engage only sometimes or not at all. this will set a P1870 code in the control module. when this code is stored in the controller, ( check engine light may or may not be on), it increases the pressure in the transmission causing the 1-2 shift to be harsh. ask a local tranny shop to scan the vehicle ( most will do this for free) if this is the problem they can either fix your valve body (sonnax parts) or replace it with an upgraded valve body. hope this helps
Posted on Dec 16, 2009
Tips for a great answer:
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i suggest you to refer these gear shift issues, which are mostly noticed. These
are direct links with appropriate solutions to
the specific problems of gear ****.
GEAR SHIFT ISSUES
Car is stuck in park and the shift will not move?
These details will help.
Nov 28, 2012 | Cars & Trucks
Automatic transmission shift lever issues?-------
AUTOMATIC TRANSMISSION FLUID LEVEL? --
AUTOMATIC TRANSMISSION FLUID AND
Transmission fault light on car dash?
Transmission shifting problem?
Transmission Slips out of 2nd gear?
OD light flashing and transmission fluid leaking?
Why Transmission fluid leaks near radiator?
Transmission fluid leaking?
****** wont go in reverse?
Automatic transmission will not go into reverse?
Transmission is making buzzing noise?
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