What do you think about the gears studdering to shift on steep incline or high rpm's? This only happens occassionally,but worries me?Any thoughts please?

 

shroomjohn, welcome to the site.

What type of trans?

 

Thank you good to be here. It an auto no mods 5.4 engine 99 model

 

When's the last time you did a filter and fluid change?

 

Just got the truck, checked the trans fluid it was bright red so I assume it has been changed recently don't know about the filter have no record to go by. I guess I can start by dropping the pan do you think it could be that simple?

 

You'd be surprised what a fluid change can correct on these trannys. Not knowing the history, I personally would feel better knowing that I changed it. Sometimes even repair shops put regular Mercon in. Be sure to drain the converter also, it's got a drain plug in it. Remove the round cover on the bell housing and turn the crank until you see the plug. All together, you need about 12 qts. of Mercon V . Also NAPA sells a product called Lubeguard thats really good for trans. shudder and smoother shifting, costs about $13 for a little 8oz. bottle! Good to add one with the fluid change, if you want to.

 

Thanks, I'll give it a try appreciate the info

 

This is a common Ford problem and is a common topic on other threads. Shudder is a symptom of bad fluid or poor quality fluid. I had it also. Drained my torque converter & transmission pan. Refilled with 15.5 qts of Mobil 1 ATF, no more shudder. Since I have a 4r100, I use Mercon. I believe I saw that Valvoline makes a synthetic Mercon V, but don't hold me to that.