Engine/Transmission (1994 - 1998) 47rh shifting problems

[gcarthel]

I am having this problem on my 3500. This problem started when I figured out that the injection pump kill lever was not being opened all the way by the solenoid. When I fixed this problem I went from making 24-26 pounds of boost to making 40 to 45 pound of boost. Now all of the sudden my transmission will not shift until rpms get really high and it will down shift on its own way to soon. If I have the tc locked up manually with the mystery switch it will shift from 3rd to 2nd at about 56 mph, which really revs up the motor. I have been happy with the transbuddy kit that I installed and I really like to be able to lock up in any gear. I am wondering if the cause of this is a internal leak of somekind. Any input or solution would really be appreciated, as I have many loads of hay to move next week!!! Oo.

 

[Howard Durand]

What did you do to fix the fuel solenoid problem?

Past experience has caused me to stop and consider what I just did when a new problem suddenly arises right after fixing something.



First thing I would do is to check the throttle cable to the fuel pump and the throttle valve cable to the transmission to make sure they are functioning properly.

Check the plastic connector on the end of the throttle valve cable. It can be broken fairly easily. I believe the TV cable affects the 1 to 2 and 2 to 3 gear shifts.

The Throttle Position Sensor controls the 3 to 4 shift and is directly affected by any problem with the throttle cable assembly. Make sure the electrical connector is making good contact at the TPS.



Then again, maybe whatever you did has nothing to do with the new problem.



Murphy is still very much alive.

 

[Howard Durand]

Was the throttle cable assembly ever replaced under the recall?

 

[gcarthel]

I checked all of the adjustments on the tv cable and it is okay. I don't know if the cable has been replaced or not. I have only owned the truck for the last year or so. I put a dunrite transbuddy kit on this transmission because I needed the ablility to lock up in all gears. I have been happy so far, it is really nice to be able to pull a good hill and not burn up the transmission. It has only been 15000 miles since I serviced the filter but when I took the pan down last night it was in pretty bad shape. I went ahead and pulled the valve body out to make sure I hadn't left something loose when i put in the trans kit, everything looked good. I put on a new filter and all back together this morning and believe it or not it seems to have fixed it. Thanks for the suggestions and help. It looks like I might of dodged a bullet this time