transmission issues

I have a 2007 With the V6 / 4.0 Bought it used and have no clue if service has ever been done. I just had a leak in my Transmission oil cooler and replaced it my self. Now i am asking my self if I should have a transmission fluid change or flush done? What are you guys saying about it? Also...

To begin, i have an 06 GT deluxe. I recently did a trans filter change and replaced the trans fluid that i lost when doing so. Afterwards when i went to start my car it would not start. my anti theft was flashing when trying to start my vehicle in park. so i had my buddy unplug my...

I have a 2006 GT with a manual transmission and a Hurst short-throw shifter. So yesterday, I was at a red light and was just playing with the shifter. I was going through the gears with the clutch in (as I normally do) and as I tried to pull it out of 3rd, it wouldn't move. I thought it was just...

You read the title right....my wife's 08 had a reman tranny put in recently and now the tranny sounds like a fully spooled up turbo in the first three gears.....is this normal for 5r55 autos? The old trans never made these sounds....did they give me a defective trans?

Hi guys new to the forum. So I picked up a 05 mustang 4.0 auto trans with 88k miles on the clock for a good deal. but after a few months of owning I'm starting to have issues. With the drive train. I was doing an 800 mile road trip and all was fine until at one point I started to hear the timing...

For now, I have an 05 gt (used) with about 140k miles. The car run great 90% of the time, but if I run it a little too long or hard the tranny starts acting up. Normally, second and third gear. Some of the issues is delayed or slow shifting, not wanting to down shift, some times those specific...