The transmission harness

 

Was there a reason you changed it, or was it just a guess?

If you could tell me the codes that were stored I could point you in the right direction. You listed codes above, but one was a two digit code. There are no two digit codes in this truck.

 

I'll test the codes the codes again when I get home should I run a KOER, or a self test. To be honest I'm doing what I was instructed not to do and throwing parts at it, I'm trying to eliminate possibilities.

 

KOER Codes Include-
116, 172, 538, 536, 632, 176,

KOEO Ocdes Include-
633, 172, 334
I don't know if I mentioned but the egr system is gutted out at the moment

 

I don't see where you even mention what the problem is, just that the new trans has the same problem. What is the problem?

 

The rpm's will surge up and down upon acceleration, it's almost as as if the throttle is being opened and closed over and over. Sometimes it will eventually shift and it will continue to shift until I restart the truck. When the issue first started it would happen once every couple weeks but it was rare, now it is every time I restart it.

 

I think you're looking too far back. That's usually an engine problem, not a transmission problem.

 

Do you think the egr could effect it?

 

Uhhh .... Yeah, that would definitely cause EGR related codes.

116 - ECT sensor out of self test range. You may have to warm up the truck to get the sensor to respond if this code occurs.

172 - O2 Sensor not switching/is currently or was stuck lean. Likely an air leak in the intake, cracked exhaust manifold, low fuel pressure/dirty injectors, fouled plugs, basically anything that could cause higher than normal O2 levels in the exhaust. O2 sensor may have failed.

538 - Snap the throttle wide open during the test, it measures TPS output during the KOER test.

536 - You have to tap the brake pedal during the KOER test or it assumes your brake switch/circuitry is failed.

632 - (R) E4OD - Transmission Control Switch (TCS) should be cycled once between engine ID and Goose test ... This one is weird, maybe Mark can help with this one?

176 - Front left O2 sensor stuck lean ... same cause as above

KOEO

633 - 4x4L switch should be in 4x2 or 4x4 high for the test? Weird.

172 - See above

334 - EGR Valve Position sensor high voltage/open circuit? That's likely a result of the 'gutted' EGR system.

Phew ... Lot of crap going on here. The truck is probably running like crap because the computer thinks the truck is running lean and overcompensating with too much fuel to make the mixture 'even' according to sensor values. What I would do if I were you is disregard the transmission problems right now and focus on codes 172 and 176, see if you can find out why the computer is seeing lean conditions.

 

Would some of you guys take a look at this other E4OD thread:

https://www.ford-trucks.com/forums/1...ft-issues.html

I think you might could help.

 

This thread we are in now for fishfreak101 is one of five or so threads he has on this problem. It goes back several months. You might get more out of it if you look back.

 

Thanks slot man I'll rerun the test, and try to eliminate the lean fuel mix code.

 

I reran the tests I am now only getting 172 and 538. I don't know why I didn't mention this before, it just didn't seem of relevance, but when I fill up the front tanks it leaks at the pump a a little the surging happens on both the front and rear tanks, could the leaking front pump have anything to do with it?

 

I reran the tests I am now only getting 172 and 538. I don't know why I didn't mention this before, it just didn't seem of relevance, but when I fill up the front tanks it leaks at the pump a a little the surging happens on both the front and rear tanks, could the leaking front pump have anything to do with it?

 

I was dring the truck to school to test the vss and timing in auto and all of the sudden the scrap yard transmission I just put on had 100k on it and just had a huge mechanical failure while driving it, it's like it just slammed into park on its own. All of the sudden I just heard a bunch of crunching, clicking, and grinding. No park, no drive no reverse, I'm stuck in neutral, ( all I can hope now is that I'll get my money back. I'm about ready to give up on this thing...