Reverse problem

[skullsniper]

I have a 1999 f250 4x4 crewcab and sometimes when I put it in reverse and start backing up it seems like it downshifts into another gear and lugs the engine down. How do I fix that problem?

[EArmsF350]

Check your tranny fluid level. I know it sounds stupid but dads 99 f250 was 5 quarts low and when he put it in reverse it would die on him. He's not the best at prev. maintenance though. Try that and see if it fixes the problem. Warm it up good, sit level and keep it running to check your fluid level. Good luck man.

[yamahag9er]

I am having the same problem. I am curious as well as to what would cause this.

[EArmsF350]

I dont know why it does it maybe just a safety thing Ford put in there when pressures drop or its not getting fluid. I dont know going to have to see if a tranny guy reads this thread. Maybe he would know

[skullsniper]

Ive checked the tranny fluid and it looks good but it seems to only do it when its warm outside and the truck is warm also.

[EArmsF350]

Man, I dont know about when its just warm. The way it sounded I thought maybe the fluid problem was it but I'm not sure. I'll do some checking and try to get back with you tomorrow.

[Heartbeatracing]

the torque convertor is locking up, theres a few reasons it can do this but mine was doing it and the TC was coming apart... I just got my tranny rebuilt

[skullsniper]

Any more imput on this problem? Its still driving me crazy.

[yamahag9er]

Well for what it is worth mine does it not only in reverse, but in forward on occasion as well. I took it in to a local trans shop in town and they had it hooked to a scanner for about a 1/2 an hour and drove it. It wasn't throwing any codes and they really wouldn't tell me much other than they wanted to pull the trans and rebuild it. It may need that, but I guess I am just not ready to surrender to that just yet.