changing gears
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Junior User
Joined: May 2004
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From: jacksonville nc,
changing gears
i have a 1993 F250 4x4 automatic. i am having a problem with the truck shifting gears. actually i'm not have a problem with it shifting at all it just seem like it cant make up its mind if it wants to go into over drive or stay i third gear. it usually happens between 40 and 50 mph. the fluid level is good so i cant figure it out. can anyone help?
Post Fiend
Joined: Nov 2004
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From: Manitoba
A/T - E40D FIPL Sensor Trouble Shooting & Adjustment
TECHNICAL BULLETIN # 186A
TRANSMISSION: E4OD
SUBJECT: FIPL troubleshooting & adjustment procedures
APPLICATION: Ford
DATE: Jan 1994
E4OD
FIPL Trouble Shooting & Adjustment Procedures (Diesel Applications Only)
Poor transmission performance and/or premature transmission failure may be caused by a defective Fuel Injection Pump Lever (FIPL) sensor, or sensor signal. The sensor is located on the Fuel Injection Pump (Figure 1) and is used to inform the Transmission Control Unit Assembly (computer) of throttle position.
Ford Motor Company recommends that the FIPL be checked or replaced every 50,000 miles. However, it is possible for a FIPL sensor to fail at less than 50,000 miles. Therefore, it is highly recommended that you install a new "upgraded" FIPL sensor when a transmission overhaul is performed on any diesel applications.
You should also be aware that early design FIPL sensors are not as desirable as late design sensors.
Another potential concern is that the wiring harness leading to the FIPL sensor may be broken or shorted to ground. Closely inspect the harness where it is routed across the top of the engine to the FIPL sensor. The natural vibration of a diesel engine can easily wear through the wiring insulation where it contacts the engine, brackets, etc.
Note The voltage specification for signal return (item 2, page 2) was incorrect on the original bulletin. Remove original # 186 from your files and replace it with this revised bulletin. # 186A.
Note For testing and adjustment information see following information.
TESTING THE FIPL SENSOR
Note During these tests the negative lead of the voltmeter MUST be connected directly to the negative battery post and the computer and FIPL harnesses must not be disconnected.
1. Wire A is reference voltage sent to the sensor from the computer ORANGE/WHITE
TEST: With the KEY ON, ENGINE OFF voltage should be approximately 5 volts.
2. Wire B is the ground path from the FIPL sensor to the computer BLACK/WHITE
TEST: With the KEY ON, ENGINE OFF voltage should be volts .025 or less.
3. Wire C is the throttle opening signal sent to the computer from the FIPL sensor . TEST With the KEY ON, ENGINE OFF and the throttle at idle position, voltage should be approximately 1.2 volts. With The throttle fully open, voltage should be approximately 4.5 volts. ORANGE/WHITE (CENTER WIRE)
The sweep from 1.2 volts at idle to approximately 4.5 volts at full throttle should be smooth. A meter with a snapshot or min/max capture mode is useful to catch intermittent "opens".
If the previously described range cannot be attained, FIPL adjustment can be achieved by rotating the sensor (on its bracket) one way or the other until the voltage values are satisfactory.
NOTE....
Members actual voltages do range from .95-1.2 volts on the FIPL on different trans so adjust to the best feel without slipping or slamming into gear.
TECHNICAL BULLETIN # 186A
TRANSMISSION: E4OD
SUBJECT: FIPL troubleshooting & adjustment procedures
APPLICATION: Ford
DATE: Jan 1994
E4OD
FIPL Trouble Shooting & Adjustment Procedures (Diesel Applications Only)
Poor transmission performance and/or premature transmission failure may be caused by a defective Fuel Injection Pump Lever (FIPL) sensor, or sensor signal. The sensor is located on the Fuel Injection Pump (Figure 1) and is used to inform the Transmission Control Unit Assembly (computer) of throttle position.
Ford Motor Company recommends that the FIPL be checked or replaced every 50,000 miles. However, it is possible for a FIPL sensor to fail at less than 50,000 miles. Therefore, it is highly recommended that you install a new "upgraded" FIPL sensor when a transmission overhaul is performed on any diesel applications.
You should also be aware that early design FIPL sensors are not as desirable as late design sensors.
Another potential concern is that the wiring harness leading to the FIPL sensor may be broken or shorted to ground. Closely inspect the harness where it is routed across the top of the engine to the FIPL sensor. The natural vibration of a diesel engine can easily wear through the wiring insulation where it contacts the engine, brackets, etc.
Note The voltage specification for signal return (item 2, page 2) was incorrect on the original bulletin. Remove original # 186 from your files and replace it with this revised bulletin. # 186A.
Note For testing and adjustment information see following information.
TESTING THE FIPL SENSOR
Note During these tests the negative lead of the voltmeter MUST be connected directly to the negative battery post and the computer and FIPL harnesses must not be disconnected.
1. Wire A is reference voltage sent to the sensor from the computer ORANGE/WHITE
TEST: With the KEY ON, ENGINE OFF voltage should be approximately 5 volts.
2. Wire B is the ground path from the FIPL sensor to the computer BLACK/WHITE
TEST: With the KEY ON, ENGINE OFF voltage should be volts .025 or less.
3. Wire C is the throttle opening signal sent to the computer from the FIPL sensor . TEST With the KEY ON, ENGINE OFF and the throttle at idle position, voltage should be approximately 1.2 volts. With The throttle fully open, voltage should be approximately 4.5 volts. ORANGE/WHITE (CENTER WIRE)
The sweep from 1.2 volts at idle to approximately 4.5 volts at full throttle should be smooth. A meter with a snapshot or min/max capture mode is useful to catch intermittent "opens".
If the previously described range cannot be attained, FIPL adjustment can be achieved by rotating the sensor (on its bracket) one way or the other until the voltage values are satisfactory.
NOTE....
Members actual voltages do range from .95-1.2 volts on the FIPL on different trans so adjust to the best feel without slipping or slamming into gear.
Thread Starter
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Junior User
Joined: May 2004
Posts: 64
Likes: 0
From: jacksonville nc,
ok, maybe i was looking at the wrong thing. when i am looking at the engine it is on the right side of the injector pump. it has 3 wires coming out of it but, one is white/red the middle one is a yellowish color and the bottom one is black/white. am i looking at the right thing.
Thread Starter
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Junior User
Joined: May 2004
Posts: 64
Likes: 0
From: jacksonville nc,
today i went to take it to the shop to get it fixed and for the life of me i could not get the transmission to malfunction. i took out the tach sensor and cleaned it but, all i did was wipe off a little oil and put it back in. could that have fixed it or was it just a good day and it will mess up again.
