Unique trans issues
#1
Unique trans issues
Hey all, as you can see im new to this board, but have been researching alot on it, yet I can't seem to findany situation similar to mine. I have a 2000 Dakota 4x4 with the 4.7L. Its also lifted 10" w/ 35's on it ( if thats relivent )
The issue is that the truck will not shift into 3rd or 4th (OD). When i place it in drive it stays in first and will only shift into second if I give it full throttle. If i dont it seems to slip. But heres where it confuses me, if i run it in 2nd instead of Drive then it will shift from first to 2nd flawlessly But will still not go into 3rd of 4th.
When I First ran the codes I got the P1698 aswell as improper gear ration in 1st, 3rd and 4th. Today I cleared all the codes, checked all fuseable links and wires and took it for a ride. IT acted the same way but now only throws a p0700 code.
Its not in limp mode bc i have first, and it shifts hard w/ no slipping in 2nd, so im lead to believe its not a mechanical problem but more of a elitrical one.
Where should i start?
I appreciate any and all help. Thank you!
The issue is that the truck will not shift into 3rd or 4th (OD). When i place it in drive it stays in first and will only shift into second if I give it full throttle. If i dont it seems to slip. But heres where it confuses me, if i run it in 2nd instead of Drive then it will shift from first to 2nd flawlessly But will still not go into 3rd of 4th.
When I First ran the codes I got the P1698 aswell as improper gear ration in 1st, 3rd and 4th. Today I cleared all the codes, checked all fuseable links and wires and took it for a ride. IT acted the same way but now only throws a p0700 code.
Its not in limp mode bc i have first, and it shifts hard w/ no slipping in 2nd, so im lead to believe its not a mechanical problem but more of a elitrical one.
Where should i start?
I appreciate any and all help. Thank you!
Last edited by MassiveDakota; 03-14-2010 at 11:42 AM.
#5
#6
Also, it has absolutly no grinding or metal shavings in the pan at all. When placed in 2nd it runs perfectly but just will not go into 3rd or 4th. Maybe a speed sensor? or would that throw a code?
I was thinking Selenoid pack, but wouldn't that throw it in limp mode?
Could the tcm just need replaced?
as you can tell im grasping as straws here! lol
I was thinking Selenoid pack, but wouldn't that throw it in limp mode?
Could the tcm just need replaced?
as you can tell im grasping as straws here! lol
#7
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#8
Sounds like the front speed sensor to me. Mine acted the same way when the front sensor went caput. It didn't throw a check engine light right away. Took about 5 or 6 starts before the light came on. Not shifting past 2nd is also a symptom of Governor Pressure Solenoid, which doesn't always throw a light. I would start with the speed sensor. If that doesn't do it, things could get interesting.
It does not, however, sound mechanical in nature. Good luck!
- miggity
It does not, however, sound mechanical in nature. Good luck!
- miggity
Last edited by miggity; 03-15-2010 at 06:14 PM. Reason: terribad speeling r teh win
#9
Sounds like the front speed sensor to me. Mine acted the same way when the front sensor went caput. It didn't throw a check engine light right away. Took about 5 or 6 starts before the light came on. Not shifting past 2nd is also a symptom of Governor Pressure Solenoid, which doesn't always throw a light. I would start with the speed sensor. If that doesn't do it, things could get interesting.
It does not, however, sound mechanical in nature. Good luck!
- miggity
It does not, however, sound mechanical in nature. Good luck!
- miggity
#10