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What causes a slip code on an E4OD trany?

What causes a slip code on an E4OD trany?

Normally this is caused by a transmission slip code. Have your computer scanned to see what transmission codes are stored. If it is a torque converter slip code keep in mind it could be stored from converter clutch slippage, or slippage in another transmission clutch pack. I have a 91′ F-150 with a straight 6, E4OD trany.

Why does my E4OD keep having transmission problems?

This would keep the engine from having problems due to the electronic transmission being disconnected. The reason for your repeat problems could be due to the factory control strategy for this transmission. Most references recommend updating to a 1994 level PCM after completing a rebuild on an early E4OD.

What kind of transmission does a 91 Bronco have?

91 Bronco, 5.0 E40D, Hard 1-2 shift after she warms up. Orig throwing code 634 and I replaced the MLPS sensor- no change, no codes now accept for EGR. I checked all fuses, flushed tranny and then changes filter and changed fluid, tried Lucas trans additive-nothing.

What causes a Ford E4OD to go into reverse?

The linkage has the transmission partially in Park, and the manual valve in the valve body is headed for Reverse. Any vibration or even the shake of the engine starting is enough to cause the linkage to move away from Park and into Reverse. Chock the wheels, set the parking brakes, drop the transmission pan and drain the ATF.

Normally this is caused by a transmission slip code. Have your computer scanned to see what transmission codes are stored. If it is a torque converter slip code keep in mind it could be stored from converter clutch slippage, or slippage in another transmission clutch pack. I have a 91′ F-150 with a straight 6, E4OD trany.

What causes increase in rpm in E4OD Tran?

You could put C6 gears in the transmission, but this would actually reduce the RPM in first and second, and give no change in 3rd or 4th. The most likely cause for the increased RPM would be a torque converter clutch that is not engaging. I have a 1990 f-250 with a 7.3 liter diesel, and a e4od tran.

What happens when the clutch fails on an E4OD?

When the intermediate clutch fails on an E4OD it causes it to stay in first gear until third gear is commanded and then it will shift from first to third. Going directly from first to 3rd will cause a harsh shift. Pay close attention to the number of shifts to make sure this is not happening.

This would keep the engine from having problems due to the electronic transmission being disconnected. The reason for your repeat problems could be due to the factory control strategy for this transmission. Most references recommend updating to a 1994 level PCM after completing a rebuild on an early E4OD.

How much does it cost to trans a Ford E4OD?

If you want to help your E4OD get a reputable trans. shop to recommend and install a valve body kit (shift kit) such as a sonnex. These trans. are very expensive $2500.-3000. to replace with oem and double that for an extreme duty unit.

You could put C6 gears in the transmission, but this would actually reduce the RPM in first and second, and give no change in 3rd or 4th. The most likely cause for the increased RPM would be a torque converter clutch that is not engaging. I have a 1990 f-250 with a 7.3 liter diesel, and a e4od tran.

When the intermediate clutch fails on an E4OD it causes it to stay in first gear until third gear is commanded and then it will shift from first to third. Going directly from first to 3rd will cause a harsh shift. Pay close attention to the number of shifts to make sure this is not happening.

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Ruth Doyle