Thank you for the donation.
This is a tricky situation.
1. The sensors are external so replacement can be done without removal of the trans assy from the vehicle. $300 is rather steep to do the job.
2. If the new transmission has a fault, even though it might have been rebuilt, you would have to pay the mechanic to remove the trans again.
3. Even if the trans had come with the sensors, there is no guarantee that the sensora are good.
4. If the sensors from the original transmission are faulty, moving them over to the new trans wuold result in the same problem.
5. If the sensors are good, then you would not have any problem moving them over.
Are all the sensors missing or only specific ones?
Is it the sensors or solenoids that are missing?
What is/are the exact trouble code retrieved for the D4 light blinking?
Though the original transmission is slipping, the cause might not be internal. A faulty sensor or solenoid can cause the problem.
If you have not retrieved the trouble codes, get a free scann done at Autozone to retrieve the trouble codes so we can understand the problem better.
If I am in the situation, I would get the trouble codes to understand what is causing the D4 light to blink before proceeding further.
Wednesday, January 13th, 2010 AT 1:16 PM