Ok, here it goes again, I have a 00 psd and have been having problems with the tranny. Mainly the shift from 3rd to the od gear or more precise the lock up of the convertor. If I am pulling a hill and try to down shift using the od button on the shifter, it sometimes does not downshift into a gear. Instead it goes into a "nuetral" position and won"t find a gear till I move the gear selector up into "N" nuetral and then back into drive. Only then will it engage into a gear. Also sometimes the light on the shifter will not turn on indicating that I have downshifted the trans manually out of OD. The light does not flash. Someone here told me that I needed the pcm flashed, but that is not the problem. The truck haules a big load just fine with no trans slippage and when this problem occurs I know how to get by this. If someone drives it and it does this, they wuold probably burn up something not realizing the trans has found a nuetral on it's own. Any ideas? I am getting a 3rd gear ratio error message using a superchip microtuner, but some say it needs to be scanned with a ford scanner to be accurate. Don't know how true this is but any help would be appreciated.

 

where's all the help?

 

No help from me, but I'm currently having a problem. First thing in the morning, when the truck shifts from drive to O/D the RPMs only go down half way to the normal RPMs. After about 5 minutes, it will make the complete shift to O/D. When this wierd thing happens, I shift back to drive and leave it there till it warms up a bit. I didn't notice this problem last year and I'm not sure why it's doing it now???

 

I don't have a clue as to the original poster's problem, but your problem is that you didn't notice this last year. The torque converter won't lock in a cold transmission. It has to warm up some before it can lock. That's why the RPMs don't drop all the way on the last shift until it warms.

 

Somebody who rebuilds transmissions for a living posted here on FTE if you are getting a ratio error code than you need a transmission rebuild. It's not in neutral, it's just slipping. Rebuild time. Sorry.

 

No. I am sure it is not slipping. the convertor is not locking up like it should and it's intermittant. If it was slipping, it wouls do it when I'm pulling a big load, it doesn't. I am sure it's probably some kind of solenoid or something like that that engages briefly then does not hold. 1,2,3rd gears are strong and no burning smell from the fluid.It must be somthing minor.Besides that, it's done it since the first day I bought it some 30k miles ago. A tranny that slips won't last that long. I think I'll just shoot it! I think I'll have to take it and see if someone I can trust can diagnose it, without saying I need a complete rebuild. I can't imagine nobody out there has not had a similiar problem with theirs.

 

I think your best bet is to have a reputable trans shop diagnose it. It's really hard to see and feel through the net. It cound be something as simple as the shifter cable adjustment, or a PCM issue, or a wire/connector issue, or a blockage in the valve body.

When my converter died it was an intermittant issue.

 

Fords4me, what was yours doing? and how did the convertor fail internally? what did it cost to fix it?

 

Mine was way different. It would try to lock when it shouldn't, like taking off. There'd be a weird squeek and the engine would lug.

When your in OD and you hit the button the T/C should unlock for the shift and then relock after. Out of curiosity, does your T/C unlock @ highway speed if you touch your brakes? Not all of the '00s did, they changed that. But if it does, try tapping the brake when you need to drop a gear uphill.

Stock 1 cluch T/C converter?

 

I had a problem with my 93 truck, it would come out of O/D and act like it was looking for a gear to go in. This happened intermittenly. I took it to Amcoo and they found that the module on the side of the tranny to tell the computer what gear it was in was bad.

 

roaky81,although the years are different, this sounds like the same symptoms what would you have to do to trick the tranny to enable it to find a gear when that happened, and what are they calling that module,

 

I sold that truck and gave all the receipts to the new owner and can't remember the name. But I think it was the one right by the shift linkage going in to the tranny.