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Old 02-05-2008, 02:31 AM
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Fleet 500 Fleet 500 is offline
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Join Date: Sep 2003
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San Fernando Valley, Calif.
Quote:
Originally Posted by henk4 View Post
and of course you have no idea why that it? Because at 30-40 the autobox is constantly thinking what gear to be in...while at 50 the engine delivers enough torque to make the gear box think it can stay in top.
I don't think so. That Pontiac has the same trans as the one in my Cadillacs (Turbo-hydramatic).
These transmissions shift into third (with regular acceleration) at about 25 mph and won't drop back into 2nd until the car speed is below about 20 mph.
In other words, 3rd gear is used from 20-25 mph up to the car's top speed, unless the the throttle is opened up enough for it to downshift which doesn't happen with steady 50 mph driving.
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Something which the Americans have made quite a few of which are designed and built and operate properly.
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