2006 GT Automatic Transmission Issues
03-10-2016, 01:03 PM
#1
Thread Starter
Join Date: Mar 2016
Location: New York
Posts: 1
2006 GT Automatic Transmission Issues
So recently I've been having issues with the automatic transmission on my car. I first noticed the problem when I shifted the car into reverse the other night and it took about 10 seconds for it to kick in. The night after that the overdrive light started to flash while I was pulling out of the driveway. I couldn't get the car to shift beyond 1st or 2nd gear. I pulled the ODBII fault codes off and have listed them below. If anyone has any advice or could point me in the right direction I would greatly appreciate it.
Code:
Fault log report generated by Torque for Android ================================================= Vehicle VIN: Vehicle Manufacturer: Ford Vehicle Calibration ID: Current Fault Log ------------------ P0420: Catalyst System Efficiency Below Threshold (Bank 1) Pending Fault Log ------------------ P0795: Pressure Control Solenoid "C" Historic Fault Log ------------------ ECU reports no historic faults Other discovered fault codes (possibly pending, current or manufacturer specific) ---------------------------------------------------- P0734: Gear 4 Incorrect Ratio End of report.
Code:
Mode $06 report generated by Torque for Android ================================================ Vehicle VIN: Vehicle Manufacturer: Ford Vehicle Calibration ID: Test report: ------------------ MID:$01 TID:$01 Rich to Lean sensor threshold voltage(constant) - O2 Bank 1 Sensor 1 Max: 7.99527V Min: 0V Test result value: 0.44994V PASS ---- MID:$01 TID:$80 - O2 Bank 1 Sensor 1 Max: 7.99527V Min: 0.56998V Test result value: 0.8185V PASS ---- MID:$01 TID:$81 - O2 Bank 1 Sensor 1 Max: 3A Min: 0.465A Test result value: 1.227A PASS ---- MID:$02 TID:$01 Rich to Lean sensor threshold voltage(constant) - O2 Bank 1 Sensor 2 Max: 7.99527V Min: 0V Test result value: 0.44994V PASS ---- MID:$02 TID:$81 - O2 Bank 1 Sensor 2 Max: 3A Min: 0.22A Test result value: 0.686A PASS ---- MID:$05 TID:$01 Rich to Lean sensor threshold voltage(constant) - O2 Bank 2 Sensor 1 Max: 7.99527V Min: 0V Test result value: 0.44994V PASS ---- MID:$05 TID:$80 - O2 Bank 2 Sensor 1 Max: 7.99527V Min: 0.56998V Test result value: 0.76067V PASS ---- MID:$05 TID:$81 - O2 Bank 2 Sensor 1 Max: 3A Min: 0.465A Test result value: 1.231A PASS ---- MID:$06 TID:$01 Rich to Lean sensor threshold voltage(constant) - O2 Bank 2 Sensor 2 Max: 7.99527V Min: 0V Test result value: 0.44994V PASS ---- MID:$06 TID:$81 - O2 Bank 2 Sensor 2 Max: 3A Min: 0.22A Test result value: 0.668A PASS ---- MID:$21 TID:$80 - Catalyst Monitor Bank 1 Max: 0.78905Ratio Min: 0Ratio Test result value: 1.06639Ratio FAIL ---- MID:$22 TID:$80 - Catalyst Monitor Bank 2 Max: 0.59765Ratio Min: 0Ratio Test result value: 0.0625Ratio PASS ---- MID:$3a TID:$80 - EVAP Monitor (cap off) Test incomplete or dependant test failed -- MID:$3a TID:$81 - EVAP Monitor (cap off) Test incomplete or dependant test failed -- MID:$3a TID:$82 - EVAP Monitor (cap off) Test incomplete or dependant test failed -- MID:$3b TID:$80 - EVAP Monitor (0.090") Max: 624.5Pa Min: -8,192Pa Test result value: 342Pa PASS ---- MID:$3c TID:$80 - EVAP Monitor (0.040") Max: 280Pa Min: -8,192Pa Test result value: 249.5Pa PASS ---- MID:$51 TID:$24 - Max: 574.20001A Min: 61.6A Test result value: 655.20001A FAIL ---- MID:$a1 TID:$80 - Misfire Monitor General Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a1 TID:$81 - Misfire Monitor General Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a1 TID:$82 - Misfire Monitor General Data Max: 24.99893% Min: 0% Test result value: 0.49748% PASS ---- MID:$a1 TID:$83 - Misfire Monitor General Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a1 TID:$84 - Misfire Monitor General Data Max: 855.10004°C Min: 0°C Test result value: 495.10001°C PASS ---- MID:$a2 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 1 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a2 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 1 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a2 TID:$80 - Misfire Cylinder 1 Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a2 TID:$81 - Misfire Cylinder 1 Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a3 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 2 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a3 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 2 Data Max: 65,535 Min: 0 Test result value: 1 PASS ---- MID:$a3 TID:$80 - Misfire Cylinder 2 Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a3 TID:$81 - Misfire Cylinder 2 Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a4 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 3 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a4 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 3 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a4 TID:$80 - Misfire Cylinder 3 Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a4 TID:$81 - Misfire Cylinder 3 Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a5 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 4 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a5 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 4 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a5 TID:$80 - Misfire Cylinder 4 Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a5 TID:$81 - Misfire Cylinder 4 Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a6 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 5 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a6 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 5 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a6 TID:$80 - Misfire Cylinder 5 Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a6 TID:$81 - Misfire Cylinder 5 Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a7 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 6 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a7 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 6 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a7 TID:$80 - Misfire Cylinder 6 Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a7 TID:$81 - Misfire Cylinder 6 Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a8 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 7 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a8 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 7 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a8 TID:$80 - Misfire Cylinder 7 Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a8 TID:$81 - Misfire Cylinder 7 Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$a9 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 8 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a9 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 8 Data Max: 65,535 Min: 0 Test result value: 0 PASS ---- MID:$a9 TID:$80 - Misfire Cylinder 8 Data Max: 24.99893% Min: 0% Test result value: 0% PASS ---- MID:$a9 TID:$81 - Misfire Cylinder 8 Data Max: 0.99953% Min: 0% Test result value: 0% PASS ---- MID:$b1 TID:$24 - Max: 574.20001A Min: 225.44A Test result value: 655.20001A FAIL ---- End of report.
03-10-2016, 01:35 PM
#2
5th Gear Member
Join Date: Mar 2008
Location: wisconsin
Posts: 2,260
your trans has an internal issue, its slipping in gear 4 or gear 4 is not applying due to a mechanical or electrical fault, this sets these codes, and as a result puts the trans into failsafe mode, and limits the gears you will have. it also looks as if your bank 1 catalytic converter is bad. trans will have to be diagnosed and most likely taken apart to find the cause of the fault
03-14-2016, 06:06 PM
#3
Gentleman's Relish
Join Date: Feb 2005
Location: AZ
Posts: 13,090
The 5R55S transmissions have a solenoid pack that controls the shifting of the transmission. They also have servos for 2-3 and OD. that are accessible from the outside of the transmission.
P0795: Pressure Control Solenoid "C" - is a solenoid fault.
What makes the 5r55S such a PITA to troubleshoot is that unlike traditional transmissions where each gear is either enganged or disengaged, the 5r55S overlaps each each gear (Slips in and out) by applying variable pressure.
If you have a failing solenoid or a solenoid that does not operate in a linear fashion (has inconsistent electrical resistance) you will get odd shifting.
Also, the valve body on these tranny's use steel pistons in aluminum bodies. That causes odd wear in the Torque converter pressure regulator circuit of the valve body that leads to inconsistent pressure and wonky shifting.
Lastly here's another area where Steel and aluminum don't mix:
P0734: Gear 4 Incorrect Ratio
http://www.fordservoboretransmission...-solution.html
I'd say at least you are looking at a transmission flush and new solenoid pack with remaned valve body.
Take it to a tranny shop though and have them asses it with the proper tools. I updated my stuff before I had problems. Once problems present, you may have other issues that fixing the root cause will no longer remedy.
P0795: Pressure Control Solenoid "C" - is a solenoid fault.
What makes the 5r55S such a PITA to troubleshoot is that unlike traditional transmissions where each gear is either enganged or disengaged, the 5r55S overlaps each each gear (Slips in and out) by applying variable pressure.
If you have a failing solenoid or a solenoid that does not operate in a linear fashion (has inconsistent electrical resistance) you will get odd shifting.
Also, the valve body on these tranny's use steel pistons in aluminum bodies. That causes odd wear in the Torque converter pressure regulator circuit of the valve body that leads to inconsistent pressure and wonky shifting.
Lastly here's another area where Steel and aluminum don't mix:
P0734: Gear 4 Incorrect Ratio
http://www.fordservoboretransmission...-solution.html
I'd say at least you are looking at a transmission flush and new solenoid pack with remaned valve body.
Take it to a tranny shop though and have them asses it with the proper tools. I updated my stuff before I had problems. Once problems present, you may have other issues that fixing the root cause will no longer remedy.
03-15-2016, 12:28 AM
#4
2nd Gear Member
Join Date: Dec 2014
Location: Georgia
Posts: 225
Also don't get hung up to much on the cat efficiency codes sometimes codes piggyback. The auto cars 02 sensors are integrated into the trans harness so a fault in the trans could lead to other issues. I'd start by having the trans diagnosed and then go from there. Also some PCMs are programmed to set other codes in the event of a trans failure for emissions reasons your cats are most likely perfectly fine. Autos are finicky to figure out best to leave it to a specialist.
03-15-2016, 09:38 AM
#5
Gentleman's Relish
Join Date: Feb 2005
Location: AZ
Posts: 13,090
Agreed, with 09GT/CS. Focus on the main issue first which is the transmission.
You mention delayed engagement into reverse? There is a Reverse servo assembly that is under the pan, this servo is notorious for gumming up when the fluid is dirty. When was the last time the fluid was changed in the car?
There was some recent debate in another thread about fluid longevity in these transmissions, the manual states "sealed for life" or roughly 100K miles before flushing however, a heavy duty cycle recommends every 30K. Tranny fluid is very very temperature sensitive and quickly degrades as the temp rises above 190F so I consider even light duty as Heavy Duty.
You mention delayed engagement into reverse? There is a Reverse servo assembly that is under the pan, this servo is notorious for gumming up when the fluid is dirty. When was the last time the fluid was changed in the car?
There was some recent debate in another thread about fluid longevity in these transmissions, the manual states "sealed for life" or roughly 100K miles before flushing however, a heavy duty cycle recommends every 30K. Tranny fluid is very very temperature sensitive and quickly degrades as the temp rises above 190F so I consider even light duty as Heavy Duty.
03-16-2016, 02:09 PM
#7
Gentleman's Relish
Join Date: Feb 2005
Location: AZ
Posts: 13,090
Yup, mainly from Explorer and F-150 forums which use the 5r55W and N versions of the transmission.
The Mustangs use the 5r55S version so there are some minor internal differences that seemed to have helped some. That and we don't generally tow things
The Mustangs use the 5r55S version so there are some minor internal differences that seemed to have helped some. That and we don't generally tow things
