New Magnum F T56 Reverse Lockout Problem
Thread Starter
Joined: Aug 2009
Posts: 1,153
Likes: 169
From: Litchfield Park AZ
New Magnum F T56 Reverse Lockout Problem Brand new Magnum F T56 will not go into reverse unless forced. Installed recently with just less than 100 miles on it so far. Goes into all gears smoothly however now it will not go into reverse without two hands, does not grind just has a lot of resistance moving to the right.
DEX 3 Fluid, Tick Master properly adjusted, Monster twin disc clutch with proper air gap, no air in system. It worked perfectly then went to go for a drive and back out of the garage with this. Sensor fuse is not blown and there is power at the connector. Any ideas?
DEX 3 Fluid, Tick Master properly adjusted, Monster twin disc clutch with proper air gap, no air in system. It worked perfectly then went to go for a drive and back out of the garage with this. Sensor fuse is not blown and there is power at the connector. Any ideas?
Joined: Apr 2006
Posts: 3,912
Likes: 1,158
From: Grand Rapids, Michigan
It's not the trans, it's the reverse lockout solenoid. Mine was sticking and I had to push it hard to get it into reverse. I just pulled my drivetrain, so I took it out and bench tested it and it was a little sticky. I disassembled it and cleaned it, and it was functioning correctly after that. It's easy to get to on the trans, right by the shifter, only one bolt. Pull it out and bench test it. Sometimes they do fail.
Thread Starter
Joined: Aug 2009
Posts: 1,153
Likes: 169
From: Litchfield Park AZ
It's not the trans, it's the reverse lockout solenoid. Mine was sticking and I had to push it hard to get it into reverse. I just pulled my drivetrain, so I took it out and bench tested it and it was a little sticky. I disassembled it and cleaned it, and it was functioning correctly after that. It's easy to get to on the trans, right by the shifter, only one bolt. Pull it out and bench test it. Sometimes they do fail.
Thread Starter
Joined: Aug 2009
Posts: 1,153
Likes: 169
From: Litchfield Park AZ
Joined: Apr 2006
Posts: 3,912
Likes: 1,158
From: Grand Rapids, Michigan
Mine is having a similar problem, but it's all apart at the moment. I have a piggyback harness in my car, and the reverse lockout worked initially, but then stopped. I wonder if I'm having a similar issue to what you are.
Thread Starter
Joined: Aug 2009
Posts: 1,153
Likes: 169
From: Litchfield Park AZ
It was kinda weird, was testing/setting my TPS so I had the key on for a little bit then the occurrence. Who knows if that had something to do with it or it could be an intermittent problem with the system. Either a plug/pin/VSS sensor but I didn’t get that far after the bench test. Was even thinking the PCM had failed to send the ground signal.
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Thread Starter
Joined: Aug 2009
Posts: 1,153
Likes: 169
From: Litchfield Park AZ
Thread Starter
Joined: Aug 2009
Posts: 1,153
Likes: 169
From: Litchfield Park AZ
Joined: Apr 2006
Posts: 3,912
Likes: 1,158
From: Grand Rapids, Michigan
I saw those reverse lockout deletes. They're cool for what they are, but like the OP, I would not want to risk shifting into reverse at speed. I'm violent with my shifter.
It's not the trans, it's the reverse lockout solenoid. Mine was sticking and I had to push it hard to get it into reverse. I just pulled my drivetrain, so I took it out and bench tested it and it was a little sticky. I disassembled it and cleaned it, and it was functioning correctly after that. It's easy to get to on the trans, right by the shifter, only one bolt. Pull it out and bench test it. Sometimes they do fail.
Joined: Apr 2006
Posts: 3,912
Likes: 1,158
From: Grand Rapids, Michigan
I don't know if there's a fuse, but I have yet to check my circuit out to see if I have a wiring issue. I know my lockout functions correctly, but the circuit isn't providing power to it. I have a Current Performance integration harness on mine. I've been busy with a whole bunch of other crap on my car, so it'll be a bit until I can test. The unit itself is very simple to remove to bench test, if you're concerned it's not functioning.
On The Tree
Joined: Jan 2012
Posts: 102
Likes: 10
I recently had this same issue. Bench tested mine and it seemed "ok" but seemed like I was losing signal from the harness. I too went with the delete plug and chose the stiffer spring. Testing it with the car not running it would be pretty hard to get it into reverse while hitting 5th. The delete kit still offers resistance and the physical travel of the shifter is different enough. If i'm speed shifting into 5th, I am going way to fast.