Reverse/1st issues E4od
Thread Starter
|
5th Wheeling
Joined: Sep 2022
Posts: 34
Likes: 1
Reverse/1st issues E4od
Truck had many issues when I acquired it. But persistent has been hesitation or refusal to drive in reverse or manual 1st once warmed up.
Once replaced the wires/coils/cap/rotor/vacuum cannister/all vacuum lines; reverse became much easier.
Originally reverse only worked if i would quickly cut wheels to the stop position and back. Engine would rev up enough to catch itself.
After replacements mentioned above reverse catches itself sometimes and otherwise a blip of the throttle will do it.
I'm aware of slip yoke and filter drop issues but I have doubts either would be as vauge or temperature dependent as mine.
One thought I had is perhaps on partial cool down my tranny fluid flows enough into the pan to allow reverse to work with a suspected bad filter. Once engine runs tranny fluid is pumped out and since pressure is more critical in R and manual 1st the here lies my issues?
Any experience or suggestions are appreciated, especially the obvious things I may have missed.
Once replaced the wires/coils/cap/rotor/vacuum cannister/all vacuum lines; reverse became much easier.
Originally reverse only worked if i would quickly cut wheels to the stop position and back. Engine would rev up enough to catch itself.
After replacements mentioned above reverse catches itself sometimes and otherwise a blip of the throttle will do it.
I'm aware of slip yoke and filter drop issues but I have doubts either would be as vauge or temperature dependent as mine.
One thought I had is perhaps on partial cool down my tranny fluid flows enough into the pan to allow reverse to work with a suspected bad filter. Once engine runs tranny fluid is pumped out and since pressure is more critical in R and manual 1st the here lies my issues?
Any experience or suggestions are appreciated, especially the obvious things I may have missed.
Thread Starter
|
5th Wheeling
Joined: Sep 2022
Posts: 34
Likes: 1
I'll add reverse always works and did before replacements. If engine dies/or I turn engine off and then quickly once started back up it is shifted into reverse.
I haven't experimented nearly enough with 1st as R but I imagine it's the same.
I haven't experimented nearly enough with 1st as R but I imagine it's the same.
Hotshot
Joined: Jun 2015
Posts: 12,831
Likes: 2,436
Originally reverse only worked if i would quickly cut wheels to the stop position and back.
I'm aware of slip yoke and filter drop issues but I have doubts either would be as vauge or temperature dependent as mine.
One thought I had is perhaps on partial cool down my tranny fluid flows enough into the pan to allow reverse to work with a suspected bad filter. Once engine runs tranny fluid is pumped out and since pressure is more critical in R and manual 1st the here lies my issues?
I'm aware of slip yoke and filter drop issues but I have doubts either would be as vauge or temperature dependent as mine.
One thought I had is perhaps on partial cool down my tranny fluid flows enough into the pan to allow reverse to work with a suspected bad filter. Once engine runs tranny fluid is pumped out and since pressure is more critical in R and manual 1st the here lies my issues?
Thread Starter
|
5th Wheeling
Joined: Sep 2022
Posts: 34
Likes: 1
Stop position is wheel lock, i.e turning wheel all the way left or right. The act of turning my wheel all the way one direction for a brief second will cause a slight rpm raise from the extra load at wheel lock. This will level the rpm out in reverse and then it runs fine. The reason I did vacuum lines/tune up is because it'll drive in reverse if I can get rpms up around 1k rpm just once. Once i get the rpms get above idle rpm (850-950) in reverse then the truck will idle and drive just fine in reverse. I have to do that everything it's warmed up if I need to back up. I think this is also why it works if I shut the truck off in N and then restart and quickly shift to R before RPMs drop from startup
Thread
Thread Starter
Forum
Replies
Last Post
