Porsche 944 Won't shift to 1st while rolling?

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TheWizard

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have an 87 944 5 speed manual, it will shift to first fine while sitting still but as soon as it gets past about 5 mph if i try to downshift to 1st it will grind. was told a gear oil change would fix that but that sounds like BS to me. is there a mechanical reason for this? i really don't feel like emptying my wallet on a new trans
 
Your car is fine. Most manual vehicles built in the last decade won't let the driver put the car into 1st if the car is moving. If the car is already moving you shouldn't ever need to downshift. So the reason it's grinding is because you're forcing it against the way the car was built. So to recap, your car is totally normal. It's just a new thing that car makers started doing to help the transmission last longer.
 
Your car is fine. Most manual vehicles built in the last decade won't let the driver put the car into 1st if the car is moving. If the car is already moving you shouldn't ever need to downshift. So the reason it's grinding is because you're forcing it against the way the car was built. So to recap, your car is totally normal. It's just a new thing that car makers started doing to help the transmission last longer.
 
look in the owners manual, it may be something as simple as no syncros in first, did it used to downshift into first? if so when did that stop, if this is the only problem in your transmission, that alone is not worth rebuilding a transmission over, my guess is first is too low to be much good for anything but launching the car from a stop, I would bet money that you could start out in second gear but just a little slower. in any case, you could solve this with the owners manual, or one call to a real porsche mechanic, not the quicky teen oil and go stop.
 
I thought that was pretty standard, since most transmissions don't have a 2nd-1st synchro. Does it go in if you double declutch?
 
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