e4od problems

Reply Subscribe

Thread Tools

Search this Thread

Aug 10, 2012 | 06:43 PM

Brant Bowrifle

Thread Starter

Tuned

Joined: Sep 2010

Posts: 485

Likes: 0

From: Boise Idaho

e4od problems

Okay, so just when I think I'm done working on my 94' idi something else comes up. I drove my boat down to the lake yesterday and when I got off the freeway the off light started to blink on my od cancel switch. Got back home to check it out and it would shift hard when put in gear. Drove it the next day and it was fine for awhile, then started blinking and shifting into gear hard again, fine for a few minutes, then blinking......... The tach has always had a problem and does not show rpm until about 1200. The only thing that changed recently before this trip is that I noticed the needle jump up and at times where it didn't before. Something seemed to change a little in the transmission when it did that and I started to think the torque convertor was going out. I installed a used tach sensor that I've had around as a spare and it only changed it slightly. Now the off light comes on only when the tach needle drops off at 1200 rpm and it does it consistently. I'm not sure where the e4od gets it's input from the tach, from the gauge on the dash or from the sensor. I can probably go to a wrecking yard and get another gauge cluster but I thought I'd get some thoughts from you guys before doing that.

I do have a 95' psd gauge cluster. I don't think they are the same but I might go out and check.

Aug 10, 2012 | 08:06 PM

FORDF250HDXLT

Fleet Owner

Joined: Jul 2006

Posts: 20,382

Likes: 845

From: Mi'kma'ki

you need a 100% functioning tach signal to the pcm or she'll go in limp mode.
the harsh shift while the light is flashing is normal and doesn't necessarily (in fact,rarely) mean the converter nor any hard part is malfunctioning.start with a new (another good used) tach sensor.once the issue is resolved,and the light no longer flashes,the firm shifts will go away.

Aug 10, 2012 | 08:41 PM

Brant Bowrifle

Thread Starter

Tuned

Joined: Sep 2010

Posts: 485

Likes: 0

From: Boise Idaho

Thanks. Yeah, I figured it wasn't the converter after it started working right again. Hard to find the tach sender. You happen to know where I can get one? I haven't called the dealership yet because I hate dealing with those guys.

Aug 10, 2012 | 08:48 PM

FORDF250HDXLT

Fleet Owner

Joined: Jul 2006

Posts: 20,382

Likes: 845

From: Mi'kma'ki

E5TZ-17B384-A - Ford SENSOR ASY

that's for all 6.9 & 7.3l IDI engines.

Aug 11, 2012 | 12:39 PM

gumper 123

Senior User

Joined: Feb 2010

Posts: 241

Likes: 0

The stealer ship was te only place i could get one that soundslike what you need. My tach kept dropping out it ended up being pcm.

Aug 11, 2012 | 01:14 PM

rolape2

Senior User

Joined: Sep 2008

Posts: 318

Likes: 1

From: Portage Des Sioux, Mo

I had a problem with my Tach sensor being intermittent. The isulation was bad where the wires went into sensor. I seperated and sealed wires with liquid electrical tape. I have had no problems since.

Aug 11, 2012 | 09:48 PM

Brant Bowrifle

Thread Starter

Tuned

Joined: Sep 2010

Posts: 485

Likes: 0

From: Boise Idaho

I'll try sealing the wires and see what happens. Thanks for the tip. I'm going to call the stealership on Monday and see if they carry the sensor. I have a deer hunt to go on and I can't wait for a part to ship, or at least I hope I don't have to. I still think it is the sensor because it changed a little when I put in a different one. Can't be sure though. I did test both and I cant get any resistance numbers unless I wiggle the wires around and the numbers are all over the place.