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#51
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"Steve" <no (AT) spam (DOT) thanks> wrote in message news:QKWdnTyOKsjal2rUnZ2dnUVZ_qKdnZ2d (AT) texas (DOT) net... krp wrote: I was thinking of that 4 speed monstrosity they put in the Blazers and Jimmys. 3+ overdrive 4th. That's a 700R4 alright. The TH400 was a simple, big, heavy-duty 3-speed. I guess the 700R4 was the one they stuffed a 4th gear overdrive in. What a piece of SHIT! GM ate the car. I got out of the car and bought another Dodge minivan. |
#52
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Despite tremendopus energy loss, the Fluid drive WORKED reliably as did Dynaslush. They didn't break all the time. OK, I get your point. If I can split hairs, the fluid drive's hydraulic clutch was less lossy than a Dynaflow. |
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Everyone had transmission problems in the late 80's, even the venerable Ford "C" transmissions were a bit shakey. The front drive Chrysler minivans either worked or didn't. Lots of people had loads of grief, others like me had NONE. Hit and miss. Even though there has not been significant problems since the mid-90's in the Chrysler minivans the rumor persists of trans problems. It is very rare today. Very true. Up through the 80s, everyone said "Chrysler transmissions never break" even if they hated Chrysler products. After the 41TE fiasco, the rumor is "Chrysler transmissions always break." People even said that about the truck transmissions that were still the same old design that "never broke" from before. |
#53
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Both the GM 700R4 and the Chrysler 41TE (minivan transmission of the 90s) are case studies in what happens when accountants "go over" engineers' work and find ways to "save money." |
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I'm sure you can find a similar story at all manufacturers. |
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In both cases, the basic designs are fine- as witnessed by the fact that the 700R4 (and its electronic version, the 4L60E) as well as the 41TE are now reliable... once all the "cost cuts" were undone.... Hot rodders and muscle car guys even build up 700R4s with updated parts and put them behind HUGE engines and they don't break. The 41TE is still in use by Chrysler, and you never hear problems about it anymore. In the case of the 41TE, it was also a bit ahead of its time. The first fluids for it didn't work well, and also since its small and light it really benefits from putting the throttle under computer control (most current cars are "throttle by wire") so that the computer can throttle back during shifts, saving the abuse of dumping engine power into the clutch packs while they're slipping during a shift. That change alone has HUGELY improved transmission reliability all across the automotive industry. |
#54
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since its small and light it really benefits from putting the throttle under computer control (most current cars are "throttle by wire") so that the computer can throttle back during shifts, saving the abuse of dumping engine power into the clutch packs while they're slipping during a shift. That change alone has HUGELY improved transmission reliability all across the automotive industry.- Hide quoted text - |
#55
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Baloney on Ford trans. *The Taurus were notorious for that plastic piece breaking. *My brother had 2 Taurus. *Paid big money to get both trans fixed. *Both the same plastic piece. Biggest bitches I've heard about transmissions for years is the Taurus and Accord. *But Honda at least made an attempt to do something for their customers. Now I'm going to get me a sandwich. *Baloney. * * What "plastic piece?" |
#56
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On Tue, 28 Apr 2009 15:01:08 +0000, krp wrote: "Steve" <no (AT) spam (DOT) thanks> wrote in message news:QKWdnTyOKsjal2rUnZ2dnUVZ_qKdnZ2d (AT) texas (DOT) net... krp wrote: I was thinking of that 4 speed monstrosity they put in the Blazers and Jimmys. 3+ overdrive 4th. That's a 700R4 alright. The TH400 was a simple, big, heavy-duty 3-speed. I guess the 700R4 was the one they stuffed a 4th gear overdrive in. What a piece of SHIT! GM ate the car. I got out of the car and bought another Dodge minivan. I've had a Caravan and 2 Grand Voyager LEs, one w/AWD. GREAT vehicles, as long as yuou feed the tranny the correct sauce! |
#57
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indeed. and it wasn't just simple fix stuff, it was fatality stuff like ford and their exploder rolling and killing people just because it had a flat tire. executives should be in jail, and that company should be fined billions in punantives for that kind of deliberate calculated slaughter. |
#58
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indeed. *and it wasn't just simple fix stuff, it was fatality stuff like ford and their exploder rolling and killing people just because it had a flat tire. *executives should be in jail, and that company should be fined billions in punantives for that kind of deliberate calculated slaughter. |
#59
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The first fluids for it didn't work well, and also since its small and light it really benefits from putting the throttle under computer control (most current cars are "throttle by wire") so that the computer can throttle back during shifts, saving the abuse of dumping engine power into the clutch packs while they're slipping during a shift. That change alone has HUGELY improved transmission reliability all across the automotive industry.- Hide quoted text - Yep, I think Fords do this by retarding the timing during shift, not actually controlling the throttle, but still cutting back engine power. You can actually hear this happen. |
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drive my Toyota that way too, letting up on the gas a bit to force the shift to occur during lower power.. There has to be some period of slippage during every shift and the friction parts wil llast longer if that happens with less power flowing through.. |
#60
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You would think car companies want to keep their customers "coming back"? Maybe that's why some do well and others are staring bankruptcy in the eye. |
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