Posted: 3/14/2004 9:35:42 AM EDT
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Ok, a freind of mine was telling me the other day that you are supposed to shift in to neutral when ever your driving a car with an automatic tranny and you come to a stop. I had to wave the BS flag there because thats how the engines and trannys are designed to work. They are not ment to be changing gears all of the time while the car is in motion. So the question is this? Should you shift in to neutral in an automatic transmission car when you are comming to a stop? If you know of any info on the internet that would answer this question I would be gratefull too. He is likley to insist that anyone who disagrees with him is "just plain wrong" and an idiot. So I will need to show him more than a post here. Thanks for all of your help! JIM |
| There's a key component in an automatic transmission called a torque converter. It's basically two fans submerged in tranny fluid. When you're stopped at a red light or stop sign this viscious coubling allows your engine to run with out stalling. Your friend is so full of BS it's not funny. |
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Leaving the car in drive when you stop does not hurt it in any way, unless you are possibly going to be stopped for a long time. The torque converter, as previously mentioned does indeed have two blades in it(and other stuff), and when you are stopped with the transmission in gear, one blade, the one attached to the transmissions input shaft is not turning. This could conceivably cause a rise in fluid temperature if you sit for long periods of time in gear, caused by fluid "slipping" past the stationary blade. Other than this, I can think of no way it will hurt it. |
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Quoted: yeah you can shift into neutral when you stop, but only if you have your phase coils properly adjusted. and while you're in there de-ionize your spark plug wires, and check the blinker fluid [ROFL][ROFL][ROFL][ROFL][ROFL] HAHAHAHAHHA!!!!! Thats freaking great!! JIM |
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Quoted: This could conceivably cause a rise in fluid temperature if you sit for long periods of time in gear, caused by fluid "slipping" past the stationary blade. Yep, it can indeed increase fluid temperatures. Also, putting it in Neutral raises engine speed, which increases air conditioner and alternator output (and improves cooling on vehicles with a belt-driven radiator fan). It also allows you to race the engine to even further improve cooling. |
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Yep!, It's here in my owner's manual on page 101. 1: When driving a vehicle equipped with the automatic transmission, idiots and liberals must shift from drive to neutral when stopped. This is for their own safety 2: Everyone else please disregard # 1 as it isn't necessary. [;)] Just get him to call a transmission shop, (with you present) and ask them if he should shift into neutral with a automatic transmission each time he stops. |
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Quoted: yeah you can shift into neutral when you stop, but only if you have your phase coils properly adjusted. and while you're in there de-ionize your spark plug wires, and check the blinker fluid Where have you been the last 30 years. You can't de-ionize the plug wires except on the older cars that have points. Electronic ignition vehicles require that you reverse the polarity on the sensor array and de-magnetize the photon inverter. |
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Well...as a former transmission mechanic...I can tell you that your friend is full of something brown and smelly. Shifting a car into neutral (or any other gear) simply moves a valve in the valve body, sending the fluid pressure through a different circut for each gear (causing different sets of clutches to engage for each gear, and bypass for neutral, ect ect) As stated by other posters...the torque converter will be "free wheeling" while idling anyway. The transmission pump, on the other hand... is alway turning, and fluid is always circulating through the radiator and/or cooler. |
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Quoted: Yep!, It's here in my owner's manual on page 101. 1: When driving a vehicle equipped with the automatic transmission, idiots and liberals must shift from drive to neutral when stopped. This is for their own safety 2: Everyone else please disregard # 1 as it isn't necessary. [;)] Just get him to call a transmission shop, (with you present) and ask them if he should shift into neutral with a automatic transmission each time he stops. [ROFL2][ROFL2][ROFL2] |