jonleroy2506
Registered User
Hey all,
I am new to this forum, I have read a lot of posts but this is my first. I know that there are a lot of posts related to this issue, but I have read over a lot of them and I can't seem top find any that adress quite the same issue as I am having. I have been digging for several weeks now and still am not sure what to do about my e4od transmission not shifting well. I think it is in limp mode but the overdrive light isn't flashing like many other people mentioned. I have not replaced anything yet because I don't want to throw money at parts and still get nowhere. There is one symptom my truck is having that I have not read about in any other threads that I hope may be an indicator to the issue
The first thing I did was check fuses and lo and behold the fuse for the tachometer was blown. I had read that a failed tach or one that isn't sending a signal can cause limp mode in the e4od so I switched the fuse and it blew again, several times. Is this a short circuit somewhere? Is it one of the two relays near the drivers side firewall? I tried tracing wires from the cluster back through the firewall to the relays but I really am not sure which wires I should be looking for specifically. At this point my next best guess is going to be to replace the brown relay on the drivers side near the firewall in hopes that that will fix the problem. Any suggestions would be appreciated.
Also one last thing, I read in a couple of posts related to this issue something about a fuse in the engine compartment, but I don't have a fusebox under the hood and dont know where to start looking for this fuse I read about. Is that only on later models (I have a 1991 7.3 idi ats turbo)
I am new to this forum, I have read a lot of posts but this is my first. I know that there are a lot of posts related to this issue, but I have read over a lot of them and I can't seem top find any that adress quite the same issue as I am having. I have been digging for several weeks now and still am not sure what to do about my e4od transmission not shifting well. I think it is in limp mode but the overdrive light isn't flashing like many other people mentioned. I have not replaced anything yet because I don't want to throw money at parts and still get nowhere. There is one symptom my truck is having that I have not read about in any other threads that I hope may be an indicator to the issue
The first thing I did was check fuses and lo and behold the fuse for the tachometer was blown. I had read that a failed tach or one that isn't sending a signal can cause limp mode in the e4od so I switched the fuse and it blew again, several times. Is this a short circuit somewhere? Is it one of the two relays near the drivers side firewall? I tried tracing wires from the cluster back through the firewall to the relays but I really am not sure which wires I should be looking for specifically. At this point my next best guess is going to be to replace the brown relay on the drivers side near the firewall in hopes that that will fix the problem. Any suggestions would be appreciated.
Also one last thing, I read in a couple of posts related to this issue something about a fuse in the engine compartment, but I don't have a fusebox under the hood and dont know where to start looking for this fuse I read about. Is that only on later models (I have a 1991 7.3 idi ats turbo)