February 10, 2011I`m sure this has been beat to death, but can`t find the thread. If the temp is below 40F, and the truck sits even overnight, it will take about 1.5 miles for the enricher to kick down, and another 2 miles before the tranny will go into OD. rpm for the first part stays around 2300 at 50mph, then drops to around 2000; tranny shifts up when the temp gauge gets about half way and rpm drops to 1400 +/-. truck has around 62k on it, tranny was serviced by Dodge at 31k and again at 62k. They don`t see anything unusual about this. I know when temps are below 32F things move a little slower, but granny is faster than this. My wife`s Ford doesn`t do it, and none of my previous vehicles did either. Anyone have an answer?
Forums : Transmissions : 545RE Help (749 Views)
February 10, 2011I usually warm it up and it seems to do fine
I drove an 85 Ram 250 Van with a 318 that was the same way
GO FAST AND LOOK GOOD DOING IT!
February 10, 2011Had to string together a few brain cells and recall something I had come across quite awhile back and it went something like this:
DATE: September 01, 2005
45RFE / 545RFE Trans - Delayed Engagement Due To Cooler Return Filter Replacement
This bulletin involves a transmission delayed shift condition that may occur following the replacement of the internal cooler return filter.
This bulletin applies to vehicles equipped with a 45RFE or a 545RFE automatic transmission
The customer may experience an initial delayed shift engagement following an extended off (not running) period of time, generally after being parked overnight. The initial shift engagement may feel like a delay or slip when a transmission gear (reverse or drive) is first selected after engine start.
The customer may not have experienced the delayed shift engagement until after the transmission has been serviced, where the cooler return filter was replaced during the service and/or repair.
The condition is not detrimental to the transmission but may cause concern with the customer.
The above condition may be caused by a suspect cooler return filter a part number of 04799662AB. This "AB" suffix / level filter may allow transmission fluid to drain back out of the torque converter. The drain back condition may occur over a period time when the engine (and transmission) are not running. With less fluid in the torque converter a delay in gear engagement may occur at engine start up while the torque converter fills to its proper fluid level.
All 04799662AB cooler return filters with the "AB" suffix are suspect. The above condition may be corrected by replacing a suspect "AB" filter with a new cooler return filter whose part number is 04799662 (with no suffix or with a suffix that is other than the "AB" level).
NOTE :The cooler return filter, p/n 04799662, will not be available until September 09, 2005. The filter part number is stenciled on the side of the filter case.
NOTE :A replacement 04799662 cooler return filter may come packaged with a separate threaded adapter stud. The threaded adapter stud is used to attach the cooler return filter to the transmission. Inspect the stud and note end without threads. Install the stud end without the threads into the cooler return filter and tighten the stud-to-filter connection to 18.6 Nm (165 in. lbs.). Once the threaded adapter stud has been installed to the cooler return filter, install the assembled cooler return filter to the transmission and tighten the filter to 14.1 Nm (125 in. lbs.)
February 11, 2011mammyjammer, thank you, exactly what I`ve been looking for. If we ever hook up, the beer`s on me ;o)