SaundersDiesel
No Smoke from a 12v?
- Joined
- Aug 27, 2011
- Messages
- 7
OK I just got this truck and I have done everything that I can think of. It has a rebuilt transmission with less than 10k on it and a new tps all of the fluids are good and all of that fun stuff.
The problem that I am having is the truck keeps searching for a gear. Like if I am going 35mph and hit the slightest hill or give the truck a tad bit of fuel it kicks down into first gear and wont shift up until i let off the pedal and then just barley put my foot on it. Its even worse when I get on the interstate it will jump from drive to od, then down to second and lay on the governor until i am basically going 40 and then it might shift up.
Like I said I have changed the tps and it meters out good and I did a search and thats all I could find was everyone saying to get a new tps, so I did. I also installed a new transmission temp sensor and then bypassed it altogether as I learned that the problem was only happening when the vehicle is warmed up after the tps change. SO the tps was part of the problem. I have also swapped the pcm for a known good and the same thing still happens when it gets warmed up when either using the temp sensor or the 1k ohm bypass.
Could the pump in the trans be weak or do I need to be looking somewhere else. Also the problem gets 10 times worse when I get hit the lockup switch when the truck hit od, isnt it supposed to keep it in that gear not make it jump around even worse.
Sorry for such a first post I really didnt want to post it but I am out of ideas other than taking the truck back to the shop and seeing if something is wrong internally. I doubt it is as all of my buddies get there transmissions from the same guy and they have never had a problem with them, but he is willing to fix the mistake if it is something inside.
The problem that I am having is the truck keeps searching for a gear. Like if I am going 35mph and hit the slightest hill or give the truck a tad bit of fuel it kicks down into first gear and wont shift up until i let off the pedal and then just barley put my foot on it. Its even worse when I get on the interstate it will jump from drive to od, then down to second and lay on the governor until i am basically going 40 and then it might shift up.
Like I said I have changed the tps and it meters out good and I did a search and thats all I could find was everyone saying to get a new tps, so I did. I also installed a new transmission temp sensor and then bypassed it altogether as I learned that the problem was only happening when the vehicle is warmed up after the tps change. SO the tps was part of the problem. I have also swapped the pcm for a known good and the same thing still happens when it gets warmed up when either using the temp sensor or the 1k ohm bypass.
Could the pump in the trans be weak or do I need to be looking somewhere else. Also the problem gets 10 times worse when I get hit the lockup switch when the truck hit od, isnt it supposed to keep it in that gear not make it jump around even worse.
Sorry for such a first post I really didnt want to post it but I am out of ideas other than taking the truck back to the shop and seeing if something is wrong internally. I doubt it is as all of my buddies get there transmissions from the same guy and they have never had a problem with them, but he is willing to fix the mistake if it is something inside.
