E4od Trouble

Reply Subscribe

Thread Tools

Search this Thread

Nov 27, 2008 | 11:19 PM

fordtowman

Thread Starter

New User

Joined: Mar 2007

Posts: 23

Likes: 0

E4od Trouble

Hi my father inlaw has a 91 Ford f-350 460 2wd with an E4OD. It will not drive in drive you need to shift it into low and go up through the gears manualy. The trouble codes say overdrive switch is bad, that wouldn't be the switch on the dash would it? I am thinking cylinoid pack trouble. I had him check wires they seem to be fine. Any ideas I could give him would help he lives out in the middle of nowhere and does not have a lot of cash to through parts at it. Thank You

Nov 27, 2008 | 11:25 PM

pfogle

Lead Driver

Joined: Feb 2003

Posts: 8,140

Likes: 4

From: Oak Harbor, OH

It could be the switch on the dash, or it could be the MLPS, the switch on the side of the transmission.

Nov 28, 2008 | 12:24 AM

fordtowman

Thread Starter

New User

Joined: Mar 2007

Posts: 23

Likes: 0

ok so what does MLPS stand for ??

Nov 28, 2008 | 06:53 AM

pfogle

Lead Driver

Joined: Feb 2003

Posts: 8,140

Likes: 4

From: Oak Harbor, OH

Manual Lever Position Sensor. It's mounted to the side of the trans where the shift linkage hooks up.

Nov 28, 2008 | 08:49 AM

jr32560

Fleet Owner

Joined: Jan 2008

Posts: 26,898

Likes: 3

From: southern md

it's a glorified neutral safety switch ain't it?

Nov 28, 2008 | 10:08 AM

quicklook2

Post Fiend

Joined: May 2004

Posts: 11,289

Likes: 6

From: Lakewood, Ohio

not really.

it is how the computer gets its info.

Nov 28, 2008 | 05:54 PM

jr32560

Fleet Owner

Joined: Jan 2008

Posts: 26,898

Likes: 3

From: southern md

so where is the neutral safety switch???

Trending Topics

Odd knock/rattle at idle only after fully warmed up

23

252
This is prolly a 1 page thread at most

110.3k

6M
Another Crank no start -- sorry

14

111
2022 f350 6.2 10 speed 3.73 gears, its so thirsty!!

26

776
TCU Telematics module

24

742

Nov 29, 2008 | 01:53 AM

pfogle

Lead Driver

Joined: Feb 2003

Posts: 8,140

Likes: 4

From: Oak Harbor, OH

It's part of the MLPS. It DOES act as the neutral safety switch as well as telling the computer what gear the truck is in. If the truck thinks it's in first gear then it won't shift out first gear. The computer control a solenoid pack inside the trans. You CAN manually shift it from first to third gear. Fourth is controlled by the computer. When you put the selector in (D) it sends a signal to the computer saying that it's in drive. The computer then tells the transmission HOW and WHEN to shift. If the MLPS is bad, it won't shift correctly, or it won't shift at all.