A little background….
I bought a 2002 ranger 4.0 4x4 auto for 1000$. Truck has 350,000 miles! Owner told me it was all original, he just kept up with maintenance. The body is extremely clean, with no rust, dings or anything.
Okay let’s get into it.
I was towing my boat, and was going up a hill when suddenly I see white smoke behind the truck. My rpm’s shoot to 5k, and my truck won’t go over 25 mph. I get over the hill, coast down it, and pull over. I see GALLONS of transmission fluid pouring out of the bottom of the bell housing. I tow the truck back home, and pull the transmission out. To my surprise there are markings on the transmission, “Rebuilt 2023”, and on the torque converter. I have built engines for the last 20 years, but haven’t really messed in depth with transmissions. I take the bell housing off and notice that the front seal looks worn. I ordered a whole kit, and replaced the front seal, bell housing seal, the o ring that goes in the oil pump gear, and all the orings on the bell housing bolts with transmission rtv. I checked out the clutches while I was in there, and noticed it had borg Warner clutches, and new disks in it. Nothing looked broken or overheated, so I slapped the transmission back in the truck.
I filled the torque converter up, then added trans fluid to the dip stick. I slowly added the rest of the oil (10qts total) while it was running. Within a couple minutes, the front seal blew out again. My O/D light is flashing from the second I turn on the truck.
bad valve body? Broken valve body gasket? Bad oil pump? Bad converter? Who knows. I don’t have the knowledge on transmissions like I do engines. If anyone can point me in the right direction, please do. I would hate to throw away a “fresh” rebuild transmission for a used, 220k mile one. Thanks in advance !
I bought a 2002 ranger 4.0 4x4 auto for 1000$. Truck has 350,000 miles! Owner told me it was all original, he just kept up with maintenance. The body is extremely clean, with no rust, dings or anything.
Okay let’s get into it.
I was towing my boat, and was going up a hill when suddenly I see white smoke behind the truck. My rpm’s shoot to 5k, and my truck won’t go over 25 mph. I get over the hill, coast down it, and pull over. I see GALLONS of transmission fluid pouring out of the bottom of the bell housing. I tow the truck back home, and pull the transmission out. To my surprise there are markings on the transmission, “Rebuilt 2023”, and on the torque converter. I have built engines for the last 20 years, but haven’t really messed in depth with transmissions. I take the bell housing off and notice that the front seal looks worn. I ordered a whole kit, and replaced the front seal, bell housing seal, the o ring that goes in the oil pump gear, and all the orings on the bell housing bolts with transmission rtv. I checked out the clutches while I was in there, and noticed it had borg Warner clutches, and new disks in it. Nothing looked broken or overheated, so I slapped the transmission back in the truck.
I filled the torque converter up, then added trans fluid to the dip stick. I slowly added the rest of the oil (10qts total) while it was running. Within a couple minutes, the front seal blew out again. My O/D light is flashing from the second I turn on the truck.
bad valve body? Broken valve body gasket? Bad oil pump? Bad converter? Who knows. I don’t have the knowledge on transmissions like I do engines. If anyone can point me in the right direction, please do. I would hate to throw away a “fresh” rebuild transmission for a used, 220k mile one. Thanks in advance !