Mar-31-2014 05:09 PM
Apr-01-2014 12:48 PM
marcsbigfoot20b27 wrote:
Op said it got hot going up a long hill pull.
That means the TCC was unlocked and that will make lots of trans heat in no time flat.
On big hills people need to learn/pay attention to what gear they are in and if the converter is in lockup or not. Then modify their driving habit or gear selection so they can keep it in lockup.
Apr-01-2014 08:47 AM
Apr-01-2014 08:39 AM
Apr-01-2014 08:37 AM
ScottG wrote:
220 in of itself is not too high
Apr-01-2014 06:15 AM
ib516 wrote:Mark Kovalsky wrote:
There is no thermostat or check valve in the 4R100 that would make the trans heat up.
The 1999 Superduty truck had a unique trans cooling problem. They were built with ONLY an air to oil cooler in front of the engine radiator. There was no transmission cooler inside the radiator. It didn't take long for Ford to realize that was a BIG mistake! In mid-year 2000 they added the transmission cooler inside the radiator back into production.
Many 1999 trucks had the radiator replaced with one that had a transmission cooler. If your truck doesn't have a radiator cooler that would help bring the temps down quite a bit.
The second thing that would make a huge difference is changing the air to oil cooler for a cooler from a 6.0L truck. This cooler is many times larger than your stock cooler. It mounts to the stock mounts, so it is an easy bolt in. The only modification needed is that the cooler has 1/2" lines, your truck has 3/8" lines. Your can get adapters to go from 1/2" to 3/8" at any hardware store.
I'd do what this guy says ^^. He knows his stuff.
Apr-01-2014 05:53 AM
Mark Kovalsky wrote:
There is no thermostat or check valve in the 4R100 that would make the trans heat up.
The 1999 Superduty truck had a unique trans cooling problem. They were built with ONLY an air to oil cooler in front of the engine radiator. There was no transmission cooler inside the radiator. It didn't take long for Ford to realize that was a BIG mistake! In mid-year 2000 they added the transmission cooler inside the radiator back into production.
Many 1999 trucks had the radiator replaced with one that had a transmission cooler. If your truck doesn't have a radiator cooler that would help bring the temps down quite a bit.
The second thing that would make a huge difference is changing the air to oil cooler for a cooler from a 6.0L truck. This cooler is many times larger than your stock cooler. It mounts to the stock mounts, so it is an easy bolt in. The only modification needed is that the cooler has 1/2" lines, your truck has 3/8" lines. Your can get adapters to go from 1/2" to 3/8" at any hardware store.
Apr-01-2014 05:38 AM
marcsbigfoot20b27 wrote:
Op said it got hot going up a long hill pull.
That means the TCC was unlocked and that will make lots of trans heat in no time flat.
On big hills people need to learn/pay attention to what gear they are in and if the converter is in lockup or not. Then modify their driving habit or gear selection so they can keep it in lockup.
Mar-31-2014 08:36 PM
Mar-31-2014 07:55 PM
Mar-31-2014 07:45 PM
Mar-31-2014 07:30 PM
Mar-31-2014 06:26 PM
Mar-31-2014 06:19 PM
Mar-31-2014 06:17 PM
Mar-31-2014 05:48 PM