After reading the early posts on this popular topic I began to wonder what would happen on my car (09 Nissan Murano) which has one of the magic key "Start/Stop" buttons. I got on a country road and p
Only a manual transmission does this. Automatic transmissions disconnect because the engine is what drives the hydraulic pump. Simple test, turn the ignition key back on. If the engine is still bein
Only a manual transmission does this. Automatic transmissions disconnect because the engine is what drives the hydraulic pump. Simple test, turn the ignition key back on. If the engine is still bein
over, BTDT. At any significant speed, and as long as you leave it in gear, the transmission will continue to turn the engine. This is known as compression braking. Basically, as long as the engine i
A few automatics have the pump driven off the output side of the transmission, and I think some early ones actually had pumps on both input and output shafts. This maintains lubrication flow within
enough That was me. And I beg to differ with you about the automatic. Yes, if the car is not moving then the transmission can't turn over the engine - that's why you can't push start an automatic. Ho
True. I have seen the documentation on this at the Saturn dealer. I wouldn't have an autotrans car (stuck with it on the truck though), but if an RV family must have an automatic in their toad, Satur
Just curious, if it is only on the output side how do you ever get it to do The pump would not be turning if the car is not moving and I can only assume that if the pump is not turning there is no pr
The pump (in the transmission) is driven by the engine under normal circumstances. Start the engine and it turns the input side of the transmission which turns the hydraulic pump. With the pump turni
Just for clarity, many manual transmission cars suffer from the same problem. They rely on the countershaft spinning to fling oil around and lubricate the works; but the countershaft is geared to th
Thanks. We agree on how it works with just an input pump and various scenarios of the engine running, not running, in a gear, not in a gear, etc. But the original statement from John ... implies tha
Yes. I burned the output bearing on a Ford Cortina GT by flat-towing it. Phil Ethier West Side Saint Paul Minnesota USA 1962 Triumph TR4 CT2846L 1973 Triumph Stag LE22439UB "uncle jack" 1979 Caterham
It's part of a major misunderstanding of how torque converters and automatic transmissions work. To start with, not a single automatic transmission made has an input shaft. Not a single automatic tra
Quote from earlier message: "Power is transferred to the transmission via the output shaft of the torque converter. This is hydraulically driven by the spinning blades of the engine connected casing
Sorry, Nolan, but I simply disagree. If what you say is true, then it would not slow the car down to manually select a lower gear. Every single automatic transmission that I have ever driven will do
I've verified today that my '01 Golf TDI, with drive-by-wire throttle, has the brake override the throttle. With the car stopped, pressed the brake pedal down. Pressed the throttle to the floor. Engi
Author: "Shop at \" Just Brits \"" <shop@justbrits.com>
Date: Fri, 05 Feb 2010 21:33:51 -0600
<< When I was a kid, >> Aaaarrrrrggggg Randall !!! Although the ripe old age of 15 WITH my D/L I OWNED TWO [2] '59 Chery Impalas <G> !!! <<Dad even owned an automatic transmission car (Olds F85 as I
You're right, it's not 100% and 0%. There is some force that can go the other way. I don't know the effectiveness ratio. I do know it's not much. I've never driven a gasoline engined vehicle that had
Really? Now that's interesting. A friend has gasoline Jetta that definitely does not. As evidenced by the power braking antics one can do with it. It's about an 06. I wonder why the difference. _____
Since we're drifting off topic I've decided to chime in. I've driven lots of gasoline engined vehicles and some diesel engined vehicles. Although not exactly apples to apples I can compare a gas engi