E4OD problem....maybe

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Sep 5, 2010 | 08:34 AM

#16

rla2005

Fleet Owner

Joined: Oct 2005

Posts: 20,784

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From: Kentucky

Ok, I understand now. Another item to check if the transmission still acts like it is slipping is the MLPS (Manual Lever Position Sensor). This is an input to tell the PCM where the shifter positon is at. If it sends the wrong info the PCM could be telling the trans. the wrong thing to do. If the MLPS signal is out of range it will pop an error code, but in some cases the MLPS can still have issues without flagging a code. The MLPS will not affect the rough running engine problem.

The MLPS is located on the driver side of the transmission. Check/clean the connections to it.

Sep 5, 2010 | 09:26 AM

#17

Encho

The Southernmost Mod

Joined: Dec 2004

Posts: 6,902

Likes: 20

From: Caracas, Venezuela

If the computer says it's getting proper signals from all the sensor, you can rule them out as the cause of the roughness, that's a good thing.

Dec 26, 2010 | 11:33 AM

#18

jbas

Thread Starter

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Joined: Aug 2010

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Update:

My issue endedup being the PCM. I happened to have one that I purchased with a superchip. I put it in because I kept having the issue intermittently. It has been four months now and it has not happened since.