I have a 95 bronco and my transmission has been hitting hard but it's not consistent. Sometime so hard sometimes it will be perfectly fine. I took it to a transmission specialist this morning and he said there was a converter in the dash that converts the alternating current from the transmission to direct current that the computer takes. And if that's going bad it will cause her do that so my question is does anybody know the part name and where I can buy one? And then the electrical diagram with this part and it would be very helpful.
95 bronco electrical
- Thread starter dnlcarver
- Start date
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Yo dnlcarver,
Ask the specialist the name of that part. I have no idea of what it could be.
Here is a partial 95 E4OD wiring diagram;
http://web.archive.org/web/20111201152903/http://www.oldfuelinjection.com/files/bronco_1995_30-1.gif
Try a Self Test for Diagnostic Trouble Codes (DTC)s by my pal, BroncoJoe19
http://broncozone.com/topic/14269-code-reader/?pid=74587&mode=threaded
Some basics;
The engine temperature must be greater than 50° F for the Key On Engine Off (KOEO) Self-Test and greater than 180° F for the Key On Engine Running (KOER) Self-Test.
Run it around to heat the engine up and shift thru all gears including Reverse.
Make sure A/C is off and transmission is in Park (automatic); or in Neutral for a Manual & release clutch.
Then turn off engine, all accessories/lights (close driver's door) , etc.
Do KOEO test First
Post Code(s) here according to:
KOEO
&
KOER
Ask the specialist the name of that part. I have no idea of what it could be.
Here is a partial 95 E4OD wiring diagram;
http://web.archive.org/web/20111201152903/http://www.oldfuelinjection.com/files/bronco_1995_30-1.gif
Try a Self Test for Diagnostic Trouble Codes (DTC)s by my pal, BroncoJoe19
http://broncozone.com/topic/14269-code-reader/?pid=74587&mode=threaded
Some basics;
The engine temperature must be greater than 50° F for the Key On Engine Off (KOEO) Self-Test and greater than 180° F for the Key On Engine Running (KOER) Self-Test.
Run it around to heat the engine up and shift thru all gears including Reverse.
Make sure A/C is off and transmission is in Park (automatic); or in Neutral for a Manual & release clutch.
Then turn off engine, all accessories/lights (close driver's door) , etc.
Do KOEO test First
Post Code(s) here according to:
KOEO
&
KOER
Yo, YW.
Let's see if the codes, if any will get us to a pin point test, such as:
Erratic/Hard Shifting Due to Short Circuits, Common Locations TSB 95-02-11 in 94-95 Bronco & Trucks (Also happened in our 96 w/E4OD); Miesk5 NOTE; 1. Driver's side A pillar trim screws may have been installed thru da 17K745 Sun Visor wire assy & .. bullet connector; 3. Scuff plate screws (driver's side) may pinch the 14A504 wire assy; 4 14401 wire assy may be trapped/pinched between Half car beam & instrument panel attachment (repeated as #7. the wire harness may be pinched/shorted behind the dash where the 14401 wire assy may come in contact w/a sharp edge on dash panel wall 5. shift cable assy near tranny may chaf the wire harness; the wire harness; 7. repeated above..brake pedal-to-dash panel wall weld
Source: by Ford
Transmission Control Indicator Lamp (TCIL) Flashing Diagnostic Trouble Codes 62, 628 and/or 1728 Transmission Shifts Hard TSB 98-4-19 in 90-96; "...LIGHT TRUCK: 1989-97 F SUPER DUTY, F-250 HD, F-350 1989-98 ECONOLINE, F-150, F-250 LD 1990-96 BRONCO 1997-98 EXPEDITION 1998 NAVIGATOR This TSB article is being republished in its entirety to correct the vehicles listed. ISSUE: Some vehicles may exhibit a flashing Transmission Control Indicator Lamp (TCIL) and Diagnostic Trouble Codes (DTCs) 62, 628, and/or 1728 may be stored in memory. These DTCs can be set by any internal transmission element slippage or potentially by torque converter slippage. ACTION: Refer to the following text when servicing these codes. NOTE: WHEN SERVICING A VEHICLE WITH A FLASHING TCIL WITH DTCS 62, 628 AND/OR 1728, DO NOT REPLACE THE TORQUE CONVERTER UNLESS PROPER DIAGNOSIS HAS PROVEN THE TORQUE CONVERTER TO BE THE CAUSE. Always verify the customer concern. Proper diagnosis for DTCs 62, 628 and/or 1728 may require talking to the customer to find out if there were any other symptoms associated with the TCIL flashing, (i.e., shift concerns, erratic/early/late, proper torque converter operation, etc.), prior to noticing the TCIL flashing. Prior to transmission repairs for DTCs 62, 628 and/or 1728 or investigating other causes, repair all non-related transmission DTCs first, then repair all other transmission DTCs other than 62, 628 and/or 1728. Some of the other causes that may result in DTCs 62, 628 and/or 1728 are as follows: - Aftermarket modifications (i.e., performance enhancers, electrical modifications, etc.) - Missing shifts (some/all) - Transmission fluid leakage (internal and/or external) - Erratic shift timing - Valves, springs or retainers in the main control/accumulator body not assembled correctly, binding or sticking - Check balls missing and/or mislocated. Damaged, unable to seal/seat properly - Higher or lower than normal line pressure - Transmission fluid restrictions and/or level - Erratic/inoperative vehicle speed and/or rpm sensor - Poor engine performance concerns Any vehicle system concerns that could cause the strategy to detect a perceived internal slippage or change in the expected rpm of internal transmission rotating components may cause DTCs 62, 628 and/or 1728 to set. NOTE: ONCE DTCs 62, 628 AND/OR 1728 SET, OTHER TRANSMISSION FUNCTIONAL DTCs MAY NOT SET..." by Ford via me
Let's see if the codes, if any will get us to a pin point test, such as:
Erratic/Hard Shifting Due to Short Circuits, Common Locations TSB 95-02-11 in 94-95 Bronco & Trucks (Also happened in our 96 w/E4OD); Miesk5 NOTE; 1. Driver's side A pillar trim screws may have been installed thru da 17K745 Sun Visor wire assy & .. bullet connector; 3. Scuff plate screws (driver's side) may pinch the 14A504 wire assy; 4 14401 wire assy may be trapped/pinched between Half car beam & instrument panel attachment (repeated as #7. the wire harness may be pinched/shorted behind the dash where the 14401 wire assy may come in contact w/a sharp edge on dash panel wall 5. shift cable assy near tranny may chaf the wire harness; the wire harness; 7. repeated above..brake pedal-to-dash panel wall weld
Source: by Ford
Transmission Control Indicator Lamp (TCIL) Flashing Diagnostic Trouble Codes 62, 628 and/or 1728 Transmission Shifts Hard TSB 98-4-19 in 90-96; "...LIGHT TRUCK: 1989-97 F SUPER DUTY, F-250 HD, F-350 1989-98 ECONOLINE, F-150, F-250 LD 1990-96 BRONCO 1997-98 EXPEDITION 1998 NAVIGATOR This TSB article is being republished in its entirety to correct the vehicles listed. ISSUE: Some vehicles may exhibit a flashing Transmission Control Indicator Lamp (TCIL) and Diagnostic Trouble Codes (DTCs) 62, 628, and/or 1728 may be stored in memory. These DTCs can be set by any internal transmission element slippage or potentially by torque converter slippage. ACTION: Refer to the following text when servicing these codes. NOTE: WHEN SERVICING A VEHICLE WITH A FLASHING TCIL WITH DTCS 62, 628 AND/OR 1728, DO NOT REPLACE THE TORQUE CONVERTER UNLESS PROPER DIAGNOSIS HAS PROVEN THE TORQUE CONVERTER TO BE THE CAUSE. Always verify the customer concern. Proper diagnosis for DTCs 62, 628 and/or 1728 may require talking to the customer to find out if there were any other symptoms associated with the TCIL flashing, (i.e., shift concerns, erratic/early/late, proper torque converter operation, etc.), prior to noticing the TCIL flashing. Prior to transmission repairs for DTCs 62, 628 and/or 1728 or investigating other causes, repair all non-related transmission DTCs first, then repair all other transmission DTCs other than 62, 628 and/or 1728. Some of the other causes that may result in DTCs 62, 628 and/or 1728 are as follows: - Aftermarket modifications (i.e., performance enhancers, electrical modifications, etc.) - Missing shifts (some/all) - Transmission fluid leakage (internal and/or external) - Erratic shift timing - Valves, springs or retainers in the main control/accumulator body not assembled correctly, binding or sticking - Check balls missing and/or mislocated. Damaged, unable to seal/seat properly - Higher or lower than normal line pressure - Transmission fluid restrictions and/or level - Erratic/inoperative vehicle speed and/or rpm sensor - Poor engine performance concerns Any vehicle system concerns that could cause the strategy to detect a perceived internal slippage or change in the expected rpm of internal transmission rotating components may cause DTCs 62, 628 and/or 1728 to set. NOTE: ONCE DTCs 62, 628 AND/OR 1728 SET, OTHER TRANSMISSION FUNCTIONAL DTCs MAY NOT SET..." by Ford via me
Rons beast
Active member
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Hey dnl
There is a reason that place is no longer open...they are full of s*%$...and the trans place shouldn't be far behind.
There is a reason that place is no longer open...they are full of s*%$...and the trans place shouldn't be far behind.
Yo,
I lost my first reply when the zone froze. It is the zone because 2 other windows I had open were ok.
"He may have mixed it up with this, "Two different types of VSS are used. The optical VSS, which first appeared on General Motors vehicles in the 1980s, works off a conventional speedometer cable. The later style is the permanentmmagnet or "magnetic impulse" design. An optical VSS is located inside the speedometer head at the back of the instrument panel. It uses a photo cell, light-emitting diode (LED), and a two-blade, mirrored reflector to generate an electrical signal. The LED is powered and emits light whenever the ignition switch is on. When
the vehicle is in motion, the speedometer cable spins the two-bladed reflector. The reflector rotates through the LED light beam, breaking the beam two times for each revolution of the reflector. Each time a mirror passes through the LED beam, the light is reflected to the photo cell. When the mirror isn’t breaking the beam, no light reaches the photo cell. Whenever light hits a photo cell an electric signal is generated...Yada yada..." by Wells.
Most mom and pop repair shops that used to be experts with all makes and models of Carbureted vehicles are dwindling here in the pines. The advent of electronic fuel injection, and E4OD caused these shops to wash their hands of the new Ford pin point tests using now obsolete (@ dealerships) costly break-out boxes and Rotunda E4OD test equipment, etc. & Ford EVTMs. So they stayed with general brake pads, rotors, plug, wires, filter, etc. work.
Some dealerships seem to think that our Broncos are obsolete as well. Even Ford removed the VECI info from their site recently. Spokesperson at Ford messaged me that local dealership will give them, but closest two dealers told me that they do not have them. Same for HELP, Ford's official tech manual, owners manuals, etc. no longer carry many years' manuals. E bay, yard sales and CL are only sources left.
I lost my first reply when the zone froze. It is the zone because 2 other windows I had open were ok.
"He may have mixed it up with this, "Two different types of VSS are used. The optical VSS, which first appeared on General Motors vehicles in the 1980s, works off a conventional speedometer cable. The later style is the permanentmmagnet or "magnetic impulse" design. An optical VSS is located inside the speedometer head at the back of the instrument panel. It uses a photo cell, light-emitting diode (LED), and a two-blade, mirrored reflector to generate an electrical signal. The LED is powered and emits light whenever the ignition switch is on. When
the vehicle is in motion, the speedometer cable spins the two-bladed reflector. The reflector rotates through the LED light beam, breaking the beam two times for each revolution of the reflector. Each time a mirror passes through the LED beam, the light is reflected to the photo cell. When the mirror isn’t breaking the beam, no light reaches the photo cell. Whenever light hits a photo cell an electric signal is generated...Yada yada..." by Wells.
Most mom and pop repair shops that used to be experts with all makes and models of Carbureted vehicles are dwindling here in the pines. The advent of electronic fuel injection, and E4OD caused these shops to wash their hands of the new Ford pin point tests using now obsolete (@ dealerships) costly break-out boxes and Rotunda E4OD test equipment, etc. & Ford EVTMs. So they stayed with general brake pads, rotors, plug, wires, filter, etc. work.
Some dealerships seem to think that our Broncos are obsolete as well. Even Ford removed the VECI info from their site recently. Spokesperson at Ford messaged me that local dealership will give them, but closest two dealers told me that they do not have them. Same for HELP, Ford's official tech manual, owners manuals, etc. no longer carry many years' manuals. E bay, yard sales and CL are only sources left.
Last edited by a moderator:
Seabronc
New member
>-So I have definitely confirmed it's an electrical problem. When the transmission acts up all I have to do is disconnect the negative terminal on my battery, and that resets the electrical system, then my transmission acts fine. A trusted mechanic told me that it might be the ABS speed sensor in the rear which I did replace and it did not fix my problem. I know it could possibly be the computer but wouldn't there be other signs if it was?
Last edited by a moderator:
Yo,
We can give you more info if you did the self test for codes. Yes, it could be the Vehicle Speed Sensor (VSS) mounted on the rear 8.8 differential, or it could be a bad connector pin or the 4WABS control module. But your PSOM (SPEEDOMETER) would be jumping around and Amber ABS lamp would be lit.
Do the self test or have it scanned for codes.
BTW, Some aftermarket Vehicle Speed Sensor (VSS) are currently reported to be defective. Advise Ford Motorcraft units be used.
We can give you more info if you did the self test for codes. Yes, it could be the Vehicle Speed Sensor (VSS) mounted on the rear 8.8 differential, or it could be a bad connector pin or the 4WABS control module. But your PSOM (SPEEDOMETER) would be jumping around and Amber ABS lamp would be lit.
Do the self test or have it scanned for codes.
BTW, Some aftermarket Vehicle Speed Sensor (VSS) are currently reported to be defective. Advise Ford Motorcraft units be used.
Last edited by a moderator:
Yo,
OK,
You or the shop can now test for ABS CODES.
4WABS Self Test & Test Connector Diagram, Component Locations, DTCs, 93-96; USE THIS PROCESS! "...The 4WABS TEST Connector is red; located at the left-hand side (driver's side) of the engine compartment near hood hinge and marked ANTI-LOCK TEST.
4WABS Self Test Connector pic in a 95 (near driver's side hood hinge)
Source: by s8c2 (the wagon)
Light Flash Technique:
1. Note: If 12V test light is not available, the amber ABS warning light also flashes during this test. Locate test connector in the engine compartment and install 12V test light between Pins C and E.
2. With the ignition off, jumper Pin E to B.
3. Turn key to RUN position.
4. Remove jumper between Pins E and B after 5 seconds.
5. Count light flashes of test light or amber ABS warning light..."
read more @ http://www.supermotors.net/registry/media/255501_1
miesk5 Note; for all Resistance tests, battery needs to be disconnected; remove Negative cable at battery
...
Post code (s) here and then we can give you the pin-point tests.
OK,
You or the shop can now test for ABS CODES.
4WABS Self Test & Test Connector Diagram, Component Locations, DTCs, 93-96; USE THIS PROCESS! "...The 4WABS TEST Connector is red; located at the left-hand side (driver's side) of the engine compartment near hood hinge and marked ANTI-LOCK TEST.
4WABS Self Test Connector pic in a 95 (near driver's side hood hinge)
Source: by s8c2 (the wagon)
Light Flash Technique:
1. Note: If 12V test light is not available, the amber ABS warning light also flashes during this test. Locate test connector in the engine compartment and install 12V test light between Pins C and E.
2. With the ignition off, jumper Pin E to B.
3. Turn key to RUN position.
4. Remove jumper between Pins E and B after 5 seconds.
5. Count light flashes of test light or amber ABS warning light..."
read more @ http://www.supermotors.net/registry/media/255501_1
miesk5 Note; for all Resistance tests, battery needs to be disconnected; remove Negative cable at battery
...
Post code (s) here and then we can give you the pin-point tests.
Last edited by a moderator:
Yo D,
Then just do it yourself & save $. Take time to read and print out the instructions and locate the Red test connector. It's the only bright red connector in the engine bay near driver side hood hinge and marked ANTI-LOCK TEST.
I have my better-half assist me, but more often I assist her when testing our 96s anti-lock system, etc. Always good to have a Chief Inspector hovering.
Good luck!
Then just do it yourself & save $. Take time to read and print out the instructions and locate the Red test connector. It's the only bright red connector in the engine bay near driver side hood hinge and marked ANTI-LOCK TEST.
I have my better-half assist me, but more often I assist her when testing our 96s anti-lock system, etc. Always good to have a Chief Inspector hovering.
Good luck!
Last edited by a moderator:
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