Car rolls with engine off and in gear!


ViperJoe

GT Owner
Mark II Lifetime
Aug 17, 2006
1,305
Washington Crossing, PA
I though the clutch was slipping. I sat in the car, engine off, 1st or 3rd gear engaged, the car rolled forward, I watched the supercharger turn which suggests positive clutch engagement. My hand brake assembly broke so when parked I rely on leaving the transmission in gear as the only means of preventing the car from rolling. Obviously, recent events have shown that this not a secure method. I put the transmission in reverse with the car pointed downhill and it held. Normal condition? Anyone else experience this condition?
 
Wouldnt do that

Hand break is cheaper than damaging your $30,000 Ricardo transaxle
 
1st gear will hold best, but I wouldn't trust it in a steep hill.
 
I though the clutch was slipping. I sat in the car, engine off, 1st or 3rd gear engaged, the car rolled forward, I watched the supercharger turn which suggests positive clutch engagement. My hand brake assembly broke so when parked I rely on leaving the transmission in gear as the only means of preventing the car from rolling. Obviously, recent events have shown that this not a secure method. I put the transmission in reverse with the car pointed downhill and it held. Normal condition? Anyone else experience this condition?


I was taught to put the car in reverse (and apply the the parking brake). Reverse is the lowest ratioed gear
 
I was taught to put the car in reverse (and apply the the parking brake). Reverse is the lowest ratioed gear

Lowest is best and on most cars that is 1st not reverse.
 
Wouldnt do that

Hand break is cheaper than damaging your $30,000 Ricardo transaxle

Amazing, isn't it. Ricardo trannies regularly manage stand up to 1,500 hp (or more) on the street, drag strip, Texas mile, or whatever - and they do so without so much as a whimper...but, God forbid anyone should ask 'em to keep their car in place on a slight incline. :facepalm:

And God forbid either the tranny or the GT's parking brake be used to keep ones GT stationary on a trailer.

'Just too darned deep for me.:frown


'Going to my room now...
 
On a trailer, I think the constant back and forth movement on the gears without the gears spinning and the oil pump, pumping, the gears may fret on the contact points over a long period of time because the lubrication will be displaced.

http://en.wikipedia.org/wiki/Fretting

EP you should know that because you trailer more than anyone on this forum.
 
Amazing, isn't it. Ricardo trannies regularly manage stand up to 1,500 hp (or more) on the street, drag strip, Texas mile, or whatever - and they do so without so much as a whimper...but, God forbid anyone should ask 'em to keep their car in place on a slight incline. :facepalm:

And God forbid either the tranny or the GT's parking brake be used to keep ones GT stationary on a trailer.

'Just too darned deep for me.:frown


'Going to my room now...

You think this is bad see what is said in the Ferrari chat.
 
You think this is bad see what is said in the Ferrari chat.

What do they say?
 
In most cases on that site they have good help. I owned and wrenched on a 97 355 and the site was very helpful like this site is. Some owners take things I little to far at least I think anyway. All the things you hear on the internet these days sometimes can make your head spin. I have alway used common sense when working on cars or problem solving things. Working with mechanics all day I hear some crazy stuff from even seasoned mechanics . Everyone has ideas from the past they heard or ideas that were passed down . Right or wrong there is always more than one way to skin a cat. If I did everything I heard over the years in racing I would never had been as fast as I was. I always loved telling people that said you will never go that fast that way" really I am going that fast now with those parts " bottom line and I know I went off subject but E.P also I am sure has the same feeling when it comes to these cars.
 
How steep an incline? I would never ever never trust engine compression to hold me on a hill. That is what is holding you. Not the transmission. That is why you can start a manual transmission car without a starter. I guess I don't even understand the question. If you are parked on anything but a level surface, you need the hand brake.

It would be cool to park the car with ignition on in first gear, walk away, and watch it fire itself up and drive itself away. Not sure that is even possible with modern electronics, but you get the idea? You need an automatic with a parking pawl if you don't want a handbrake.
 
...It would be cool to park the car with ignition on in first gear, walk away, and watch it fire itself up and drive itself away. Not sure that is even possible with modern electronics, but you get the idea? You need an automatic with a parking pawl if you don't want a handbrake.

You'd have to defeat the clutch switch on a manual. Do automatics still start in "Neutral," or just in "Park?" I have never been able to re-start an automatic while coasting - even at 40 mph.

My error - that's just to use the starter.
 
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