Multiple Issues
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Senior User
Joined: Oct 2008
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From: Ontario, CAN
Multiple Issues
Truck started some throttle issues when in reverse. Stumbled when put in reverse for just a second. Then began revving up when put in park. Threw a P0720 code (OSS) possibly. Then overdrive light flashed. Cleared codes, seems to run fine, but now the EBPV won't engage after start up. It's plenty cold out.
I have a coolant leak issue that is being resolved today. Could coolant on/in the EBPV sensor connection cause the EBPV failure?
Could coolant on the belt cause alternator issues that could relate to the OSS problem?
I have a coolant leak issue that is being resolved today. Could coolant on/in the EBPV sensor connection cause the EBPV failure?
Could coolant on the belt cause alternator issues that could relate to the OSS problem?
Lead Driver
Joined: Jun 2003
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From: Damon (South East Texas)
Where is the coolant leak? While it may be possible for coolant to contaminate the EBPS connection, I doubt it would have anything to do with the OSS, as it is location in the top rear of the transmission case.
Post Fiend
Joined: Nov 2007
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From: Payson, AZ
These two sensors are interchangeable. Swap them and see if you get a TSS code.
EDIT: If you have a PTO tranny make sure they are the same. The TSS may be a different length on a PTO tranny.
Thoroughly clean before re-installing, including both the female and male connectors.
TSS -Turbine Shaft Speed Sensor OSS -Output Shaft Speed Sensor.
EDIT: If you have a PTO tranny make sure they are the same. The TSS may be a different length on a PTO tranny.
Thoroughly clean before re-installing, including both the female and male connectors.
TSS -Turbine Shaft Speed Sensor OSS -Output Shaft Speed Sensor.
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From: Ontario, CAN
I'm sure you are right about the OSS, it's just that it is happening all at the same time.
The last time I shut it off, it would high idle after being put in park. Threw a P0503 code. I'm going to look it up now.
The worst part is...I had to go rent a car as we loaned our other vehicle to in laws while they visit.
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From: Ontario, CAN
Thanks Payson...Here's a thought----I have been having fuel pressure problems (varying pressure) lately. If the fuel pump is having problems, it could interfere with the VSS via the wiring harness and possibly throw the code and make the overdrive light flash. Maybe that bears investigation as well. Most of these items are original and I have about 290,000 miles on her.
Post Fiend
Joined: Nov 2007
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From: Payson, AZ
Thanks Payson...Here's a thought----I have been having fuel pressure problems (varying pressure) lately. If the fuel pump is having problems, it could interfere with the VSS via the wiring harness and possibly throw the code and make the overdrive light flash. Maybe that bears investigation as well. Most of these items are original and I have about 290,000 miles on her.
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From: Ontario, CAN
True, but I also had RPM fluctuation when going into park as well as OD light flashing. I think that indicates VSS problems, if I'm not mistaken.
I think my EBPV problem is from my serpentine belt shredding the other day. I replaced the belt but didn't look around to much and I bet it may have damaged the sensor plug or something.
Will check this PM
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Post Fiend
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From: Payson, AZ
Flashing OD typically indicates a tranny code is set, such as an OSS fault. The flashing OD is not always indicative of a bad VSS.
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Post Fiend
Joined: Nov 2007
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From: Payson, AZ
That's good to hear. Did the sensor that was the OSS have any fine metal stuck to it? It's a magnet and of course attracts wear metals and that can cause it to not sense properly.
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From: Ontario, CAN
Sorry to say, I did not do it. I was too busy (still) to get anything done. I had a friend of mine do it and as they were both original equipment from 2001, I just told him to change them both.
I will ask him though and see if he noticed.
Thanks for your help.
I will ask him though and see if he noticed.
Thanks for your help.
Post Fiend
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From: Payson, AZ
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Last time though I was tooling around in a flooded parking lot....shut it off and restarted, never though much on it. (Didn't have AE yet.)
This time I was just driving. I again shut it off and turned it on, and it went away. I'll probably scan it Friday when I have some time off. We'll see... I hope it's just some stupid sensor. Drove great other than the light.
Post Fiend
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From: Payson, AZ
This is the second time since I have had it... I'm pretty damn observant.
Last time though I was tooling around in a flooded parking lot....shut it off and restarted, never though much on it. (Didn't have AE yet.)
This time I was just driving. I again shut it off and turned it on, and it went away. I'll probably scan it Friday when I have some time off. We'll see... I hope it's just some stupid sensor. Drove great other than the light.
Last time though I was tooling around in a flooded parking lot....shut it off and restarted, never though much on it. (Didn't have AE yet.)
This time I was just driving. I again shut it off and turned it on, and it went away. I'll probably scan it Friday when I have some time off. We'll see... I hope it's just some stupid sensor. Drove great other than the light.
I had a flashing OD light, ABS light and irractic or no speedo and that was the VSS. No SES light and at the time wasn't able to read codes.