Archived Output speed sensor changed, now truck is extremely sluggish

[kurtperry]

Hey everyone, I just had the OSS go bad in my 2000 at 89k miles. My truck is stock and has no engine performance mods. My brother, who has the same year truck experienced the same thing at almost the same milage a couple months ago.



Mine manifested with the check engine light and the trouble codes for P 1693 and P0720. I also got a P 0750 as I pulled the transmission 20 amp fuse so I could limp her home as she wouldnt shift out of 1st.



I got the sensor from the dealership, $22, and did the change. I pulled the Negative terminals on the batteries to reset the comp but still have the check engine light and the P1693 code.



It drives and it shifts but its got no power from a standing start... very sluggish!!! Its drivable but it takes a good bit to get it up to speed and it sure wont handle any kind of grade.



Any suggestions out there as to what I can do would be much appreciated

 

[DBraunig]

Try shifting the truck manually from a start in low gear and see how it acts. More than likely you have an issue with the governor pressure transducer / solenoid on the valve body.



Dave

 

[kurtperry]

tried that, no difference.



Talking to my brother, he said to look at the MAP sensor on the intake manifold..... its a real @#$%@ to get to and I dont have a deep socket that size????? anyone know what size socket it is??????



I have of course checked all the hoses that connect the turbo to the manifold and checked the turbo itsself to see if it spins freely, it does. the truck is shifting up and down through the gears, it just has no power!!!



Ok, I went to the dealership this morning, got a new MAP sensor, $102, Stopped at an auto parts store and bought the deep socket that fit it then went home to change it.



As luck would have it, the new sensor takes a 1 1/16 socket and the old sensor doesnt!!!! back to the auto parts store where they dont have a deep socket in the size I need so out come the pliers and I break off the plastic end of the old sensor so that a 1 1/4 shallow socket will fit and I remove the old sensor.



I use my new 1 1/16 socket and install the new sensor, plug it in and hit the road for home.



Yes, It worked and the truck has its old peppy spirit back.



Please explain to me if you can why things always seem to fail in pairs????

I never got an error code for the MAP sensor and this could have been a truely frustrating thing if it werent for my brothers similar experiences on his truck in the recent past.