KyleJamesBrockman
Registered User
Ok this problem is a doozy so I’ll try to explain best I can and hope somebody knows these transmissions well enough to point me in the right direction.
To start the truck is a 1990 7.3 idi automatic 4 door bronco. It’s all factory. No modifications except for an hd billet torque converter. I had the transmission rebuilt this fall. Transmission works great mechanically.
Since the rebuild, the tach has not worked (not a tach sensor issue.) When it rains heavily or I take the truck through a car wash, however, the tach works for a few miles. When the tach is working the transmission operates strangely. Soft shifts, erratic shifting between 3 and od. Etc.
Since the rebuild, when I was towing heavy for a long distance the truck would not shift down to 1st when I stopped. Could not do it manually either. This began happening more frequently, then stopped for a few months. This issue is back now, and the truck never shifts down to first. Not even when I start it up.
Also the truck was leaking transmission fluid out the top vent one night. Has not happened since.
I know that was long but thank you for reading. Any help is greatly appreciated. Y’all have a good day and good luck with your projects
To start the truck is a 1990 7.3 idi automatic 4 door bronco. It’s all factory. No modifications except for an hd billet torque converter. I had the transmission rebuilt this fall. Transmission works great mechanically.
Since the rebuild, the tach has not worked (not a tach sensor issue.) When it rains heavily or I take the truck through a car wash, however, the tach works for a few miles. When the tach is working the transmission operates strangely. Soft shifts, erratic shifting between 3 and od. Etc.
Since the rebuild, when I was towing heavy for a long distance the truck would not shift down to 1st when I stopped. Could not do it manually either. This began happening more frequently, then stopped for a few months. This issue is back now, and the truck never shifts down to first. Not even when I start it up.
Also the truck was leaking transmission fluid out the top vent one night. Has not happened since.
I know that was long but thank you for reading. Any help is greatly appreciated. Y’all have a good day and good luck with your projects