2003 ford ranger 3.0 edge
Hi i have a 2003 ford ranger 3.0 with 133k miles on it The problem i have is the O/D light keeps flashing but when I take a obd reader to it nothing pops up.
I was told you delete the code and see if it would shift into 4th and 5th and it did, but the code came back on. I changed the transmission filter and put 4 quarts or transmission oil into it, is that enough or would that be low? what could be making it flash? codes came back as p0734 and p0735 thanks for any help. |
You need to check the transmission dipstick with engine running in PARK to see if you need more or less fluid in the transmission
You would have needed to measure the fluid that drained out to know approximately how much fluid to put back in A Flashing OD OFF light while driving means the computer has detected an issue with transmission operation, usually there will be a code set in memory but not always The computer often needs to "see" the same fault a few times before setting a code P0734 Gear 4 Incorrect ratio P0735 Gear 5 Incorrect ratio These codes mean the input shaft speed, intermediate shaft speed, and output shaft speeds didn't match the ratio selected by the computer when it activated the solenoids to change the ratios(gears) The absence of Solenoid codes means the computer is turning on and off the solenoids and not detecting an electrical fault, but the "gears"(ratios) are not responding Look at a full code list, here: https://www.therangerstation.com/tec...II_codes.shtml Transmission codes are in the 700's You will see all the codes the computer CAN USE The codes the computer DID NOT USE are as important as the code it did use That's the way OBD codes work, mechanics look at the code that was used, and THEN all the codes that were not used, or should, to do a diagnoses Did the old fluid look or smell "burned"? Do you notice the transmission slipping when shifting "gears"? Slipping causes the burnt look and smell, and means bands(brakes) and/or clutches are not fully engaging or disengaging This can be caused by low fluid pressure When you shift in to Reverse does it instantly engage or is there a delay, delay means low fluid pressure Drive needs 100psi pressure to engage Reverse needs 150psi pressure to engage So lower pressure effects Reverse first And just FYI, automatic transmission diagnoses is much harder than engine issue diagnoses Automatics have multiple layers of interdependent systems that engines just don't have Even transmission shops can only guess at a specific cause of any automatic transmission issue, not a Ford thing, ANY automatic |
Originally Posted by RonD
(Post 2205076)
You need to check the transmission dipstick with engine running in PARK to see if you need more or less fluid in the transmission
You would have needed to measure the fluid that drained out to know approximately how much fluid to put back in A Flashing OD OFF light while driving means the computer has detected an issue with transmission operation, usually there will be a code set in memory but not always The computer often needs to "see" the same fault a few times before setting a code P0734 Gear 4 Incorrect ratio P0735 Gear 5 Incorrect ratio These codes mean the input shaft speed, intermediate shaft speed, and output shaft speeds didn't match the ratio selected by the computer when it activated the solenoids to change the ratios(gears) The absence of Solenoid codes means the computer is turning on and off the solenoids and not detecting an electrical fault, but the "gears"(ratios) are not responding Look at a full code list, here: https://www.therangerstation.com/tec...II_codes.shtml Transmission codes are in the 700's You will see all the codes the computer CAN USE The codes the computer DID NOT USE are as important as the code it did use That's the way OBD codes work, mechanics look at the code that was used, and THEN all the codes that were not used, or should, to do a diagnoses Did the old fluid look or smell "burned"? Do you notice the transmission slipping when shifting "gears"? Slipping causes the burnt look and smell, and means bands(brakes) and/or clutches are not fully engaging or disengaging This can be caused by low fluid pressure When you shift in to Reverse does it instantly engage or is there a delay, delay means low fluid pressure Drive needs 100psi pressure to engage Reverse needs 150psi pressure to engage So lower pressure effects Reverse first And just FYI, automatic transmission diagnoses is much harder than engine issue diagnoses Automatics have multiple layers of interdependent systems that engines just don't have Even transmission shops can only guess at a specific cause of any automatic transmission issue, not a Ford thing, ANY automatic |
Transmission is slipping
Baby it and save up for a rebuild Or swap in a used 2001-2008 3.0l 2WD replacement 5R44E transmission, with new torque converter, always Don't forget to clean out the transmission cooler and lines as well |
Originally Posted by RonD
(Post 2205078)
Transmission is slipping
Baby it and save up for a rebuild Or swap in a used 2001-2008 3.0l 2WD replacement 5R44E transmission, with new torque converter, always Don't forget to clean out the transmission cooler and lines as well Thanks for all the help. |
If you have never swapped out an automatic read up on Torque Converter seating it will save you a few THOUSAND DOLLARS
Sure, on the manual swap but its ALOT more work Need the M5OD-R1(M5R1) transmission from a 2001 to 2008 3.0l 2WD, these are engine specific transmissions Floor plate and boot for shifter 3.0l Flywheel Clutch kit with Master Clutch/brake pedal assembly 2003 3.0l Ranger computer from manual trans factory model, 2wd or 4x4 doesn't matter Need to get at least ONE WORKING key WITH this new computer, and have the working key cut to match your ignition cylinder or cloned You will need to do some wiring for Reverse Lights and Safety switch by pass Optional is a Manual steering column to get rid of the automatic shifter |
Originally Posted by RonD
(Post 2205086)
If you have never swapped out an automatic read up on Torque Converter seating it will save you a few THOUSAND DOLLARS
Sure, on the manual swap but its ALOT more work Need the M5OD-R1(M5R1) transmission from a 2001 to 2008 3.0l 2WD, these are engine specific transmissions Floor plate and boot for shifter 3.0l Flywheel Clutch kit with Master Clutch/brake pedal assembly 2003 3.0l Ranger computer from manual trans factory model, 2wd or 4x4 doesn't matter Need to get at least ONE WORKING key WITH this new computer, and have the working key cut to match your ignition cylinder or cloned You will need to do some wiring for Reverse Lights and Safety switch by pass Optional is a Manual steering column to get rid of the automatic shifter |
Yes, same transmission 1995 to 2000 3.0l, and then same transmission 2001 to 2008 3.0l
So 2003 3.0l needs a trans from a 2001-2008 3.0l Ranger or Mazda B3000 and 2WD version Flex Fuel doesn't matter |
Originally Posted by RonD
(Post 2205175)
Yes, same transmission 1995 to 2000 3.0l, and then same transmission 2001 to 2008 3.0l
So 2003 3.0l needs a trans from a 2001-2008 3.0l Ranger or Mazda B3000 and 2WD version Flex Fuel doesn't matter |
It shouldn't if you use a 2001 to 2008 computer, but it would need to be a manual trans flex fuel computer if you wanted to run E85
3.0l. Flex fuel used larger injectors AND a Fuel sensor($650), up to 2000, then Ford changed to mid-size injectors on all 3.0l, and gave the Flex Fuel computer software the ability to add more fuel(E85) if needed, and no fuel Sensor was needed |
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