E4OD Hard shifting
Thread Starter
|
New User
Joined: Jun 2003
Posts: 24
Likes: 0
From: Concord, CA
E4OD Hard shifting
This is just FYI stuff, but it's good info and might save you lot of money and frustration...
I have a 1990 Bronco with 351W and E4OD. For no apparent reason my transmission all of a sudden wouldn't shift below 3200 RPM and would have to be run almost up to 4000 to shift into overdrive. When it finally did shift I thought the rear axle was going to break off. I talked with several people I know at the local Ford dealership and they said it was the valve body and I should clean the valves. Did that, no change.
The only codes I was getting were 23: Throttle Body Sensor Out of Range and 62: Converter Clutch Failure. I took it to AMACO for a "professional" diagonosis and they said I needed to have the converter clutch and boost valve replaced, so might as well overhaul the tranny while it's out. I had the tranny overhauled only 8000 miles ago so I didn't buy it.
A buddy of mine, who has a '91 F250 with E4OD was having simaler problems and his mechanic replaced the Throttle Body Sensor. For $31.95 at Advanced Auto Parts I was willing to try and it looked like the ECU felt it was bad anyway.
Amazingly it fixed all the transmission problems. I have no idea why the throttle body sensor would cause the E4OD to freak out the way it did. Something to look into before replacing the converter clutch...
1990 Bronco XLT
351W
E4OD with ProTorque Heavy Duty Converter
Skyjacker 6" Lift
35" Thornbirds
I have a 1990 Bronco with 351W and E4OD. For no apparent reason my transmission all of a sudden wouldn't shift below 3200 RPM and would have to be run almost up to 4000 to shift into overdrive. When it finally did shift I thought the rear axle was going to break off. I talked with several people I know at the local Ford dealership and they said it was the valve body and I should clean the valves. Did that, no change.
The only codes I was getting were 23: Throttle Body Sensor Out of Range and 62: Converter Clutch Failure. I took it to AMACO for a "professional" diagonosis and they said I needed to have the converter clutch and boost valve replaced, so might as well overhaul the tranny while it's out. I had the tranny overhauled only 8000 miles ago so I didn't buy it.
A buddy of mine, who has a '91 F250 with E4OD was having simaler problems and his mechanic replaced the Throttle Body Sensor. For $31.95 at Advanced Auto Parts I was willing to try and it looked like the ECU felt it was bad anyway.
Amazingly it fixed all the transmission problems. I have no idea why the throttle body sensor would cause the E4OD to freak out the way it did. Something to look into before replacing the converter clutch...
1990 Bronco XLT
351W
E4OD with ProTorque Heavy Duty Converter
Skyjacker 6" Lift
35" Thornbirds
