Weird tranny shift?

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Car-gf's 07 V6 Mustang,94k miles.

Drove her car to work this morning. While parking,came to a complete stop,shifted from drive to reverse (auto tranny),and it paused,then clunked into reverse really hard. It's never done this before. Is this just a random tranny hiccup,or is there an issue I should look at?
 
If you changed gears too quicky I've noticed what you described as happening. Has the atf been changed regularly?
 
I've noticed Fords can do this sometimes - take forever to shift from D to R or R to D. Seems to happen for me when it's cold out and when it's time to change the transmission fluid (about 30k or so).

I'd change the fluid and go from there.
 
Originally Posted By: aquariuscsm
ATF has never been changed afaik.


I would be looking at getting the tranny serviced , I'm sure that it will help as well as prolong it's life if she plans on keeping it .
 
Mine does the same thing...usually only after its been sitting a few hours...its been doing it for 2 years and hasn't gotten any worse or caused any problems that I know of....but I also need to get mine serviced
 
Sounds normal. My car does that occassionally and i changed my transmission fluid out already. It hasnt got worse over the years..but do change the atf fluid and filter.(if it has a filter)
 
You should try throwing a saturn s series into neutral while rolling from reverse. Makes a very weird noise.

For grins I'd spec out your electronic gear position switch, whatever it's called. Tells the PCM what gear you're in. These go south all the time (wrong ohms-- corrosion) and you could be on the verge of getting real problems.
 
That's a Ford thing. My 86 Capri even does it- and it's got 221K miles on it, so I don't think it hurts anything. My wife's Ranger does it, and every Escort I've had does it too. The key here, like has been mentioned above, is to keep good fluid in the transmission. It's amazing the difference it makes!
 
Originally Posted By: ethangsmith
That's a Ford thing. My 86 Capri even does it- and it's got 221K miles on it, so I don't think it hurts anything. My wife's Ranger does it, and every Escort I've had does it too. The key here, like has been mentioned above, is to keep good fluid in the transmission. It's amazing the difference it makes!


Its a ford thing?
You are aware that tremec was building them until getrag(china) took over,so please help me understand how its a "ford thing" when the transmissions are built by different manufacturers.
The reason it clunked is because when you stopped the engine idled up slightly to give the brakes the required power and because you shifted immediately into reverse the engine didn't get enough time to idle down.
If you give it a couple of seconds the idle speed will drop enough to avoid that clunk.
Although I'm sure it happening seldom won't break anything if it happens more frequently it will cause slap in the u-joint.
 
Originally Posted By: Clevy
Originally Posted By: ethangsmith
That's a Ford thing. My 86 Capri even does it- and it's got 221K miles on it, so I don't think it hurts anything. My wife's Ranger does it, and every Escort I've had does it too. The key here, like has been mentioned above, is to keep good fluid in the transmission. It's amazing the difference it makes!


Its a ford thing?
You are aware that tremec was building them until getrag(china) took over,so please help me understand how its a "ford thing" when the transmissions are built by different manufacturers.
The reason it clunked is because when you stopped the engine idled up slightly to give the brakes the required power and because you shifted immediately into reverse the engine didn't get enough time to idle down.
If you give it a couple of seconds the idle speed will drop enough to avoid that clunk.
Although I'm sure it happening seldom won't break anything if it happens more frequently it will cause slap in the u-joint.

We are talking about a automatic trans here, and as far as Im aware, except in a few instances, Ford is still making their own automatics.
 
Easy- We're talking about automatic transmissions. You would be correct in saying with a manual that you need to let the car idle down and shift smoothly.
 
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