Possible transmission problems
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 5
Likes: 0
From: Spring Valley, CA
Possible transmission problems
Just bought a 1993 F150 4x4 with the E4OD transmission. I know these early transmissions are notoriously weak but just wanted to get some opinion on issues that im having before I fork out for a new transmission.
1. From and dead stop with transmission on OD position if I go WOT it starts sputtering like it wants to take off but can't find the right gear it'll continue hunting/jerking until I let off and roll on the throttle.
2. From a dead stop in OD position if I roll on the throttle nice and easy it will accelerate normally.
3. From a dead stop with gear shift in 1 position and give WOT truck takes off as one would expect.
4. Doing 65mph in OD position and hit a normal uphill when transmission tries to kick down it again acts like it cant find the gear and I lose speed unless I hit the OD override on the gear shift then it shifts down accelerates and once I crest the hill I can engage overdrive again. same symptoms when driving on flat surface and attempt to pass.
4. While doing 65mph on the freeway speedo jumps around sometimes going all the way to 0 then jumping back up to 65 then may or may not fluctuate between 55 and 70.
Also tachometer sometimes doesn't accurately reflect engine RPM. wondering if some or all these could be attributed to sensor(s) issue. This is my first OBS truck but definitely not my first ford. Thanks for any help you can provide.
1. From and dead stop with transmission on OD position if I go WOT it starts sputtering like it wants to take off but can't find the right gear it'll continue hunting/jerking until I let off and roll on the throttle.
2. From a dead stop in OD position if I roll on the throttle nice and easy it will accelerate normally.
3. From a dead stop with gear shift in 1 position and give WOT truck takes off as one would expect.
4. Doing 65mph in OD position and hit a normal uphill when transmission tries to kick down it again acts like it cant find the gear and I lose speed unless I hit the OD override on the gear shift then it shifts down accelerates and once I crest the hill I can engage overdrive again. same symptoms when driving on flat surface and attempt to pass.
4. While doing 65mph on the freeway speedo jumps around sometimes going all the way to 0 then jumping back up to 65 then may or may not fluctuate between 55 and 70.
Also tachometer sometimes doesn't accurately reflect engine RPM. wondering if some or all these could be attributed to sensor(s) issue. This is my first OBS truck but definitely not my first ford. Thanks for any help you can provide.
Senior Member
Joined: Dec 2012
Posts: 568
Likes: 38
Sounds to me like you are having an engine miss under load. When is the last time you checked plugs/wires/distributor/etc?
My old explorer would miss religiously when pulling hills at lower rpm, or when I tried to accelerate quickly. Check engine light never came on, so no codes to pull. After tune-up and replacing multiple parts, I finally had an injector cleaning done (through the fuel rail). Must have been some dirt in there, because it ran like a scalded monkey after that.
My old explorer would miss religiously when pulling hills at lower rpm, or when I tried to accelerate quickly. Check engine light never came on, so no codes to pull. After tune-up and replacing multiple parts, I finally had an injector cleaning done (through the fuel rail). Must have been some dirt in there, because it ran like a scalded monkey after that.
Thread Starter
Junior Member
Joined: Mar 2014
Posts: 5
Likes: 0
From: Spring Valley, CA
Thanks bronco junkie I'll deff look into this, I just bought the truck so not sure what has been done and when I planned one doing a full tune up over the next month but I'll put injector cleaning at the top of the list.