4R100 shifting issues
#1
4R100 shifting issues
I have a 2000 F53 MH with a V10 and 4R100. It has 72K, flushed/changed the transfluid as per a good write up!! I dropped the pan, changed filters, refilled, pulled the cooler line and flushed/filled/flushed/filled. I did that at 60K, shifted fine.
A few weeks ago it started not down shifting out of OD every now and then. Then it stopped downs shifting from OD and threw a P0705 code. It did not down shift from any gear. Then it stared short shifting up. I replaced the TRS (transmission range sensor) with a ford part and it helped the 1-2-3 down shifting some but not 100% and still no OD down shift.
If I hit the OD button on the gear selector it will down shift, and stay down shifted till it needs to up shift, even if i hit the button sooner that it needs..
The fluid id full, nice and red, no burning smell. I checked all the fuses. Now what??
Thanks
T
ps(WE are full time RVer's that travel for my work, so leaving at a shop is out of the question..)
A few weeks ago it started not down shifting out of OD every now and then. Then it stopped downs shifting from OD and threw a P0705 code. It did not down shift from any gear. Then it stared short shifting up. I replaced the TRS (transmission range sensor) with a ford part and it helped the 1-2-3 down shifting some but not 100% and still no OD down shift.
If I hit the OD button on the gear selector it will down shift, and stay down shifted till it needs to up shift, even if i hit the button sooner that it needs..
The fluid id full, nice and red, no burning smell. I checked all the fuses. Now what??
Thanks
T
ps(WE are full time RVer's that travel for my work, so leaving at a shop is out of the question..)
#3
#4
OK, I had the codes pulled. P1100, P1702, P171&174(had a fuel pump go south), P0705, P1120 & 1125. The guy cleared the codes. 1120 and 1125 is TPS, swapped TPS and nothing. I am looking at P1702 TRS Sensor Intermittent Circuit Malfunction, and the 1100..
Help what next??
<table border="1" cellspacing="1"><tbody><tr><td>P0705
</td> <td> Digital TR
</td> <td> Digital TR circuit failure</td> <td> Digital TR circuits, indicating an invalid pattern in TR_D. Condition caused by a short to ground or an open in TR4, TR3A, TR2 and or TR1 circuits. This DTC cannot be set by an incorrectly adjusted digital TR sensor.</td> <td> Increase in EPC pressure (harsh shifts). Defaults to (D) or D for all gear positions. In (D) position trans, stuck in D or manual 2.</td> <td> WIRING OR DIGITAL TR SENSOR</td></tr></tbody></table>
<table border="1" cellspacing="1"><tbody><tr><td>P0122
P0123
P1120
</td> <td> TP
</td> <td> TP concern</td> <td> PCM has detected an error that may cause a transmission concern.</td> <td> Harsh engagements, firm shift feel, abnormal shift schedule, torque converter clutch does not engage, torque converter clutch cycling.</td> <td> WIRING OR TP SENSOR</td></tr></tbody></table>
<table border="1" cellspacing="1"><tbody><tr><td>P0102
P0103
P1100
P1101
</td> <td> MAF
</td> <td> MAF concerns</td> <td> MAF system has a malfunction which may cause a transmission concern.</td> <td> High or low EPC pressure, incorrect shift schedule. Incorrect torque converter clutch engagement scheduling. Symptoms similar to a throttle position (TP) failure.</td> <td> WIRING OR MAP SENSOR
</td></tr></tbody></table>
Help what next??
<table border="1" cellspacing="1"><tbody><tr><td>P0705
</td> <td> Digital TR
</td> <td> Digital TR circuit failure</td> <td> Digital TR circuits, indicating an invalid pattern in TR_D. Condition caused by a short to ground or an open in TR4, TR3A, TR2 and or TR1 circuits. This DTC cannot be set by an incorrectly adjusted digital TR sensor.</td> <td> Increase in EPC pressure (harsh shifts). Defaults to (D) or D for all gear positions. In (D) position trans, stuck in D or manual 2.</td> <td> WIRING OR DIGITAL TR SENSOR</td></tr></tbody></table>
<table border="1" cellspacing="1"><tbody><tr><td>P0122
P0123
P1120
</td> <td> TP
</td> <td> TP concern</td> <td> PCM has detected an error that may cause a transmission concern.</td> <td> Harsh engagements, firm shift feel, abnormal shift schedule, torque converter clutch does not engage, torque converter clutch cycling.</td> <td> WIRING OR TP SENSOR</td></tr></tbody></table>
<table border="1" cellspacing="1"><tbody><tr><td>P0102
P0103
P1100
P1101
</td> <td> MAF
</td> <td> MAF concerns</td> <td> MAF system has a malfunction which may cause a transmission concern.</td> <td> High or low EPC pressure, incorrect shift schedule. Incorrect torque converter clutch engagement scheduling. Symptoms similar to a throttle position (TP) failure.</td> <td> WIRING OR MAP SENSOR
</td></tr></tbody></table>
#6
I cleaned the MAF and pulled the Neg Cable for 30 minutes, it ran good for 1 hour then started the engaging and disengaging. Cleaned again and reset, 2 hrs then started, cleaned again, and reset, not past 6 hrs!!! Then the check engine cam back, time to reread codes. Still not down shifting, i was told it is a solenoid pack in the trans. Still looking to find some more info??
Thanks
t
Thanks
t
#7
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