E40D help!!
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From: naylor, Mo
E40D help!!
does anybody know anything about these e40d's, i have got a 91 f150 down and i cannot fingure out whats wrong with it, the truck will run fine for about 10 miles or so and then itl start shifting really hard, and sometimes it wont shift at all after it warms up, i also have an f350 with same tranny doing about the same thing, both seemed to start acting up not long after the motor was pulled and replaced on both of them. i thought maybe a pinched wire but i couldnt find 1. any info on this?
Fleet Owner
Joined: Oct 2005
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From: Kentucky
The E4OD transmission is 100% electronic controlled. Check to see if the computer (PCM) thinks there is something wrong: Fuel Injection Technical Library » How To Run a Self-Test
There are many unrelated sensors that can cause the PCM to go into Limp Mode which in turn can cause harsh shifting. Start with the KOEO test and CM code check.
There are many unrelated sensors that can cause the PCM to go into Limp Mode which in turn can cause harsh shifting. Start with the KOEO test and CM code check.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
+100 on pulling the codes, and I'd add that since the trans is controlled by the same computer that runs the engine there really are no unrelated sensors.
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From: naylor, Mo
ok thanks ill run them first chance i get, also do i need to drive the truck around again untill it messes up bcus i just put a new battery on it yesterday so it wiped my cm codes,
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From: naylor, Mo
no i dont believe it was but im not 100% on that, its been parked for awhile, will have 2 get some gas and drive it some so i can pull the codes on it
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