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Classic/Antique Car Repair/'70 RR Shadow Won't engage gear

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Expert: - 11/14/2010


Question
Hi,
My 1970 Shadow starts fine, and I then let it run for a while to warm up.  
When I select gear, there is a click from behind the dashboard, as usual, and
the reversing light comes on, but the car doesn't move. if you select 'D', you
get more clicks, but no forward movement.  If you select 'N', you can't push
the car either.  

I've looked underneath, and there is no ATF under the car, so I suspect it's
electrical, but I'm at a loss at where to start. Any Suggestions?

Answer
Hi Rob:
It's clear from your description that it is still in PARK. Although your gear level moves, the gear selector linkage on the TH-400 transmission has either come loose or is broken. On the transmission itself, you can see the linkage rod that actually puts the transmission in gear. Check that linkage.

Also, in very rare cases the emergency brakes will stick, but you would feel the car trying to rise up when you press the accelerator.

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Vern Bullock

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Visit my website at: http://www.classytransportation.com/ I can answer most questions about autos built in the 60's 70's and 80's. Specifically, Lincolns, Rolls Royces and the Excaliburs. Mechanical issues and technical questions are my expertise. I also have a general knowledge of most older automobiles. Keep in mind, I can only provide answers if the questions are very specific and complete. Without details, I can only speculate and that's not good for solving your problem.

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I have owned and maintained Silver Shadows for over 10 years now. I find most mechanics and even Rolls Royce mechanics have very little knowledge about these automobiles. I have researched these cars in quite a bit of detail and can pretty much tell you what is wrong, if you can describe the behavior in detail. I have saved quite a few RR owners a lot of money and aggravation due to improper diagnosis. I am the owner of Classy Transportation, LLC a luxury limousine service specializing in antique cars, classic cars, vintage cars and exotic cars.

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I hold a BS degree in computer science and a MS degree in mechanical engineering.

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