[Hercules550]

Ok, so a couple years back I was having trans issues. My truck was not shifting properly, was slipping a little, making noise when shifting, just overall not at its best. I took it into my local diesel shop for sh*ts and giggles. They said the best would be to put in a Ford reman. I had called around to the local rebuilders and it was gonna run between $2100 and $2500 depending on what needed to be done. The Ford reman was gonna be $3100 installed. Ended up costing me $3600 with the required flush and rear main seal replaced.


The truck did not pull the same after that. It is weak, revs up but takes forever to get moving. When towing, driving through the mountains I can be going 65 at the base of the hill and it will slow down to 40 before down shifting, that is pedal to the floor. It will not keep pace at 60 like with old trans. Even going up a medium size bridge. It loses speed quickly. I took it back to the shop who installed it and they said there was nothing wrong with it. Computer shows everything is running as it should. It has since overheated on me 3 times in the winter, below 35 deg out. I then took it to Ford and they said the same thing. Nothing wrong with it.
I know this trans is not right. Ford said same trans is used in all trucks 250 to 550. I don't understand how that can be when they are all different capacity trucks. But I am not a diesel tech so I don't know. I had posted on a Ford forum and everyone said torque converter and/or valve body could be the issue.
Any thoughts on how to get Ford to fix the issues at hand? It is still under warranty, the reason I went with it to start with.

Thanks in advance for any assistance.


2002 F-550, 4x4, 7.3L auto

 

[Graupp]

Drain the oil out of it....

Run it until it blows up,,,,

Put the oil back in, and call them and tell them to fix it...

 

[RT]

It sounds more like an engine issue to me. I'm thinking the only thing they could have screwed up during a transmission install would be the up-pipes. It really seems you aren't building boost. Apparently not to the point of throwing a code, but not enough to have full power. Do you have a scanner?

 

[Mark Kovalsky]

Ford said same trans is used in all trucks 250 to 550. I don't understand how that can be when they are all different capacity trucks. But I am not a diesel tech so I don't know.

I'm not a diesel tech either, but I know that Ford is right on this. The F-250 through the F-550 use the same engine and transmission.

I had posted on a Ford forum and everyone said torque converter and/or valve body could be the issue.

From your description you have an engine problem, not a transmission problem. The place that installed the transmission inadvertently did something to the engine.

 

[Hercules550]

I have had the engine checked multiple times. If it is an engine issue why would the trans overheat in the winter?

 

[Mark Kovalsky]

You didn't say the trans overheated. You just said it overheated. We assumed you meant the engine, because your description points solidly to an engine problem.

What happened to make you think the trans overheated? How hot did it get?

 

[Hercules550]

Sorry, I assumed everyone understood it was the trans. The temp guage was just about pegged at hot. And lost some fluid. Had to stop and let it cool.

 

[Mark Kovalsky]

I think this is going to take some hands on diagnosis. You need to see if there are codes stored. The places that read codes free cannot read these codes. A good independent shop or a Ford dealer can do it. Then you'll need that same tool to look at data to see what's happening.
.

 

[Hercules550]

I have taken it to both private shop with abilities and the dealer. Both say no issues.