It's seen some time towing and offroad (but not a lot) and more than its fair share of WOT pulls. I added a big trans cooler shortly after I got it, but it lived with just the in-radiator one for a bit over 100k. It's been living with more than stock power since 119k too, but that hasn't seemed to bother it. Still shifts as well as it did when I put the new VB in (and better than it did at 100k when I got it). I swapped the valve body for a modded one at 120k and it's got no problem barking the tires into 2nd at WOT with original clutch packs and such. They've been in production since 99 and I've never heard of a common major problem with them.Īs far as the older trannies, my 46RE is up to 161k now and still going strong.
Then you usually have a destroyed transmission that may not even be a rebuildable core along with a huge repair bill. The problem with many transmission issues like these is that people keep driving them once they start acting up until they won't move anymore instead of getting the initial problem fixed. Most 42/44/46RE failures that I have heard of seem to be traced to a bad converter drain back valve (which can be removed), a bad governor pressure sensor/solenoid or a broken 3-4 accumulator spring which can eventually damage the overdrive unit. I have a '96 Grand Cherokee 4.0 with the 42RE sitting outside with 231K miles on the original transmission. The 4 speed RWD/4WD transmissions that are modified versions of the old bulletproof 904/727 Torqueflite do have some faults that can result in failure but I would not call them "garbage" either. I will never believe that Chrysler 4 speed automatics are anything but garbage, and you will never believe they are anything but perfect. 4 Runners, Lexus SUVs in the mid 90s and the Toyota Taco 4 speed. The AW-4 (while not the same model number) showed up in heavier, v8 powered vehicles. Lets not forget all of the dodge trucks with transmission failure and the grand cherokees. Still, I know of probably a dozen that are out there running around with 200k on them, some on the original fluid. That valve was a poor "fix" for a problem that the aftermarket fixed far, far better (modified select valve plunger which turned on fluid circulation in Park just like the factory valve did in Neutral). A fair number had problems unnecessarily because of the stupid anti-drainback valve in the cooler line.
But I still think a transmission should outlast the engine and that sure didn't happenīy end-of-production, I'll grant that the 727-based 46RH (RWD and 4x4 truck 4-speed OD) and siblings were getting outdated and kinda clunky because of the way the quasi-computer control was grafted onto them. And I got >150k out of a couple of the FWD junkers without problem, too. Their FWD/AWD 4 speeds were complete garbage. In fact I know very few Ram and Jeep owners that have had any issue with it at all Its a sturdy piece. I've only got 35k on mine but I know of many with ~200k miles and no hiccups at all. 2' is also substituted into the shift pattern when "Tow/haul" mode is selected, while the top gear (second overdrive) is dropped out to increase the overall cruising gear ratio. The 545 version uses 5 speeds in sequence upshifting, but has 6 total speeds so it has an alternate gear for kickdown (called 2'- pronounced "two prime"). The 545RFE is a late 90s design (first called the 45RFE and using only 4 forward speeds). Then the notorious front-drive A-604 (41TE) and its other electronic front-drive relatives ruined that reputation, even though the rear-drive transmissions remained very good after getting an overdrive gear in about 91. Don't really know why.įor about 40 years (1950-1990) Chrysler automatic transmissions were regarded as just about the best in the world, though they were getting a bit outdated in the late 80s when everyone else had gone to 4-speeds. I have always thought inside, that chrystler transmissions were subpar. How many miles does yours have and have you had any problems with it? It seems like if the fluid is changed every 30-40,000 miles, its a good tranny. Have read that this is a pretty good tranny but i would like to hear more about it.
0 kommentar(er)
