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ABS Brake Light on

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Old Mar 21, 2024 | 09:33 PM
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ABS Brake Light on

About a year ago when I was pulling my travel trailer to a campsite , I had to make a harder than normal stop. Trck didnt stop on a dime with the weight in back but none the less it stopped safely.. shortly after a brake and ABS light went on for a bit and went away. It has occasionally come back and today driveing up I-5 corridor (Grapvine) light came back on with no towing load. would this be a bad ABS sensor for this truck? it is a 94 F-350 IDI. Where would the location for this senser be?


Greatly appreciate it.
 
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Old Mar 22, 2024 | 04:38 AM
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abs sensor would be in the read differential. look for sensor on top of the housing. pull it out and look for a clean surface. if it has any metal dust on it from wear in the differential, it will malfunction.
 
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Old Mar 22, 2024 | 10:14 AM
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TJ,
Thank you.. I did have the front and rear diff's regeared... I will have to check that out.
 
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Old Mar 22, 2024 | 06:55 PM
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So, I went over to auto part store got the new sensor, took out the old one and replaced with new one. when I drove the truck the needle jumped back and forth at speed of around 55 and 60. Not sure why but is there something infront of it that is looking to engage but cannot?
Thanks.
 
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Old Mar 23, 2024 | 12:27 AM
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Is there a good location where I could search to replace the ABS module. looks like all modules are reman.. just wondering who may have a reputable remanufactured one to replace with.
Thanks.
 
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Old Mar 23, 2024 | 08:57 AM
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auto trans, or manual?
94 E4OD trans uses a VSS in the trans.
speedometer is run by a PSOM on the back of the instrument cluster.
 
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Old Mar 23, 2024 | 10:25 AM
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This is an automatic Transmission. I had this rebuilt and upgraded the torque convertr and fle plate on account of heating up too quickly going up 6% uphills.
 
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Old Mar 23, 2024 | 11:43 AM
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I just finished reading up on the Psom issues 94 and before for these specific trucks.

I ordered Ford sensor since autopart store part said to be for my truck made my speed needle flutter at 65 miles an hour. I think will try that route and if problem persists then Psom module would be next to get checked.

Something did spring up when I did the FTE Search.
This place called Module Mechanics who repair these Psom's . How reliable are these guys? are there othere better locations?
 
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Old Mar 23, 2024 | 01:46 PM
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Originally Posted by 818rider
I just finished reading up on the Psom issues 94 and before for these specific trucks.

I ordered Ford sensor since autopart store part said to be for my truck made my speed needle flutter at 65 miles an hour. I think will try that route and if problem persists then Psom module would be next to get checked.

Something did spring up when I did the FTE Search.
This place called Module Mechanics who repair these Psom's . How reliable are these guys? are there othere better locations?
are they the guys in Chattanooga Tennessee? if so they have a very good reputation.
 
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Old Mar 23, 2024 | 04:39 PM
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If I could butt into this conversation... What was the ABS code? Replacing sensors without knowing the code is a waste of time and money. I hope you kept your old sensor because there's probably nothing wrong with it. Aftermarket sensors sometimes don't match well with the other OEM ford components.
 
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Old Mar 23, 2024 | 09:54 PM
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I did keep the old sensor.. I cleaned and re-installed it and the light went away..

In regards to codes..
10- Cylinder #1 has a problem
23-O Throttle Position Sensor Signal out of Range
14-C Engine RPM sensor cuircuit fault.

how bad are the problems!!
Thanks.
 
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Old Mar 23, 2024 | 10:03 PM
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Code Correction..

10- Cylinder #1 has a problem

23-O Fuel injection pump lever sensor input is out of self test range
14-C Engine RPM sensor cuircuit fault.
14-C ignition profile pickup cicuit failure


Now how bad is it. LOL....
 
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Old Mar 23, 2024 | 10:05 PM
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Originally Posted by 818rider
I did keep the old sensor.. I cleaned and re-installed it and the light went away..

In regards to codes..
10- Cylinder #1 has a problem
23-O Throttle Position Sensor Signal out of Range
14-C Engine RPM sensor cuircuit fault.

how bad are the problems!!
Thanks.
Not bad. Code 10 is not a real code.
23-TPS can be easily checked and replaced if needed with a multimeter. I get that code too. I need to investigate it.
14- does your tachometer work correctly?
None of those are abs codes thou. Your abs computer is a separate box that you need to jump a wire to read. It's easier to YouTube it to find out how to do it vs reading it.

 
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Old Mar 23, 2024 | 10:06 PM
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You can't have a ignition profile pickup code since you don't have a PIP sensor. That's a gas engine part.

 
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Old Mar 24, 2024 | 01:14 AM
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Originally Posted by Prototypemech
Not bad. Code 10 is not a real code.
23-TPS can be easily checked and replaced if needed with a multimeter. I get that code too. I need to investigate it.
14- does your tachometer work correctly?
None of those are abs codes thou. Your abs computer is a separate box that you need to jump a wire to read. It's easier to YouTube it to find out how to do it vs reading it.
Tachometer works fine with OEM speed sensor.. I did re-geared the front and rear diffs from 4.10 to 4.56 for better up hill pull. Could that have made the code come up?
I have to look into checking the TPS sensor.
 
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