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Old 05-01-2005, 09:13 PM   #1
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Jump starting a C6

Just a thought, but can you push the C6 manual car and jump start it? Never tried it but I doubt it.
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Old 05-01-2005, 10:17 PM   #2
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Re: Jump starting a C6

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Originally posted by tasos
Just a thought, but can you push the C6 manual car and jump start it? Never tried it but I doubt it.
I thought you can roll any manual vehicle, pop the clutch out, and the will start.

Am I right?

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Old 05-01-2005, 10:42 PM   #3
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I would think you would have to push the button to turn on the ignition and then dump the clutch but if you were totally out of power then that wouldnt work because it requires power to switch the ignition on. You cant just rotate the key. Talked about this one before and no one had done it or tried it. You cant test it with a car that has a working battery because you have to hit the start switch which kind of screws up your test. Id sure be interested to hear how things went if somebody has gave it a shot since the last time this came up.
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Old 05-01-2005, 10:56 PM   #4
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Re: Jump starting a C6

Quote:
Originally posted by tasos
Just a thought, but can you push the C6 manual car and jump start it? Never tried it but I doubt it.
hey tasos, I'm taco. What up?
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Old 05-01-2005, 10:59 PM   #5
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Re: Re: Jump starting a C6

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Originally posted by Z06 Parrot
I thought you can roll any manual vehicle, pop the clutch out, and the will start.

Am I right?

Maybe, if you can get it going fast enough for long enough for the computers to boot up, then you could push the start button and it might start.

The problem is, with a dead battery, the computers are down, and it won't run without the computers. They control spark and fuel. It takes several seconds for the computers to boot up from cold, so you'd need to get going fast enough that the alternator would power up the computers (after you pop the clutch to make the engine spin) and still be going fast enough that once you get the computers up, the engine would still be spinning fast enough to start when you push the button. It'd take a *really* long hill.
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Old 05-01-2005, 11:16 PM   #6
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ummm....

I'm going to keep my mouth shut on this one!
(Heyyyyy Stannnllleeeyyyy)
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It was one hell of a ride.
Old 05-01-2005, 11:35 PM   #7
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From my experience jump-starting (it takes a while, maybe 10 to 20 minutes, to bring up a totally dead battery enough to start), I don't think even a long push-start would work. The alternator output is controlled by the ECM, which is dead so it can't turn on the alternator. Also, be patient when jump-starting. Let the power build up for 20 minutes or so if its completely dead. If you try too soon and it just clicks rapidly, thats when you get the dreaded "service column lock" warning.
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Old 05-02-2005, 01:08 AM   #8
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Quote:
Originally posted by ZL1GT
From my experience jump-starting (it takes a while, maybe 10 to 20 minutes, to bring up a totally dead battery enough to start), I don't think even a long push-start would work. The alternator output is controlled by the ECM, which is dead so it can't turn on the alternator. Also, be patient when jump-starting. Let the power build up for 20 minutes or so if its completely dead. If you try too soon and it just clicks rapidly, thats when you get the dreaded "service column lock" warning.
I'd forgotten that the computer controls the regulator. That ends any chance of push starting because there's no way to bootstrap to a point where you can start.
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Old 05-02-2005, 01:47 AM   #9
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Man, I'd be worried about a transient voltage spike anyway. Even if you managed to get the car cranked, the 50% or so chance of frying something would keep me from trying.

Buy a portable battery jump start device or get roadside assistance. I wouldn't risk anything else.
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Old 05-02-2005, 05:51 AM   #10
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ohhhh jeeeeeezezzzzzzz...
Here we go again. I'm sitting this one out:

http://www.digitalcorvettes.com/foru...ght=jump+start
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Old 05-02-2005, 09:53 AM   #11
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Wow, great link Stanley. I actually spit my coffee out towards the end.
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Old 05-02-2005, 04:33 PM   #12
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OK, I'm going to get in this thread (and wish I had not)!
The question is/was if a 6 speed C6 CAN be started by putting the ignition to on and getting the car in motion and "popping the clutch" with the car in gear. The answer (at least to me given the following conditions) is yes.

If the reason the car will not start is because of a PARTIALLY discharged battery such that the interior lights burn but go out when the starter motor is engaged. The reason I say this is because I have started my Mustang several times under this condition and it is computer controlled-fuel injected but key start. The computers do not require much amperage to operate and are fairly tolerant of voltage (in a car) and it does not take much amperage to energize the alternator "field" and to fire the ignition and power the fuel injectors. If you measure the voltage of a fairly discharged battery (which is otherwise normal-no bad cells) the voltage is usually pretty close to 12 but if you put a large current draw, ie. starter motor, on it the votage drop is to almost zero. This explains why 8 D cells won't start a car, they have the voltage-but not the amps. Most car batteries drop to ~8-9 volts when starting the car so if you take the big current draw off the battery (and all it has to do is power the computers-fuel pump-and coils) by turning the engine over-it should start. I also would not worry about gas in the catalytic converters because the motor should really not be turning over any more under this condition than if the starter motor was turning it over. All you are doing is using the energy of the rolling car to turn over the motor instead of the starter motor.

Keep the faith,

Bill

Disclaimer: I have done my best in the above explanation using the knowledge I have. I am fallible and readily admit it and apologize in advance to anyone who is offended or thinks they maybe offended or in any way harmed by this post.
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Old 05-02-2005, 06:47 PM   #13
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Quote:
Originally posted by NAV
OK, I'm going to get in this thread (and wish I had not)!
The question is/was if a 6 speed C6 CAN be started by putting the ignition to on and getting the car in motion and "popping the clutch" with the car in gear. The answer (at least to me given the following conditions) is yes.

If the reason the car will not start is because of a PARTIALLY discharged battery such that the interior lights burn but go out when the starter motor is engaged. The reason I say this is because I have started my Mustang several times under this condition and it is computer controlled-fuel injected but key start. The computers do not require much amperage to operate and are fairly tolerant of voltage (in a car) and it does not take much amperage to energize the alternator "field" and to fire the ignition and power the fuel injectors. If you measure the voltage of a fairly discharged battery (which is otherwise normal-no bad cells) the voltage is usually pretty close to 12 but if you put a large current draw, ie. starter motor, on it the votage drop is to almost zero. This explains why 8 D cells won't start a car, they have the voltage-but not the amps. Most car batteries drop to ~8-9 volts when starting the car so if you take the big current draw off the battery (and all it has to do is power the computers-fuel pump-and coils) by turning the engine over-it should start. I also would not worry about gas in the catalytic converters because the motor should really not be turning over any more under this condition than if the starter motor was turning it over. All you are doing is using the energy of the rolling car to turn over the motor instead of the starter motor.

Keep the faith,

Bill

Disclaimer: I have done my best in the above explanation using the knowledge I have. I am fallible and readily admit it and apologize in advance to anyone who is offended or thinks they maybe offended or in any way harmed by this post.
Bill I agree with you to a point at which we would need one of the C6 trained mechanics to advise us ...

Over the years I've had to push start my manual, computer controlled '87 with the key in the "on" position many times without problems - even if the battery is almost completely drained. It requires very little juice to get the systems going. I have had limited rolling situations where the battery was VERY dead and I could not push start the car in a short distance.

Re the C6 - this might be a different animal. With no or limited juice to recognize the fob and "wake" the computer .... ????

Also, are we certain what roll the start button would play during the push start? Holding it down would further drain the battery and possibly eliminate the needed juice to recognize the fob???

Not holding it down the start button might not "wake" the computer??

Maven or C5spec would know.
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Old 05-02-2005, 07:19 PM   #14
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Old 05-02-2005, 08:20 PM   #15
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Quote:
Originally posted by NAV
OK, I'm going to get in this thread (and wish I had not)!
The question is/was if a 6 speed C6 CAN be started by putting the ignition to on and getting the car in motion and "popping the clutch" with the car in gear. The answer (at least to me given the following conditions) is yes.

If the reason the car will not start is because of a PARTIALLY discharged battery such that the interior lights burn but go out when the starter motor is engaged. The reason I say this is because I have started my Mustang several times under this condition and it is computer controlled-fuel injected but key start. The computers do not require much amperage to operate and are fairly tolerant of voltage (in a car) and it does not take much amperage to energize the alternator "field" and to fire the ignition and power the fuel injectors. If you measure the voltage of a fairly discharged battery (which is otherwise normal-no bad cells) the voltage is usually pretty close to 12 but if you put a large current draw, ie. starter motor, on it the votage drop is to almost zero. This explains why 8 D cells won't start a car, they have the voltage-but not the amps. Most car batteries drop to ~8-9 volts when starting the car so if you take the big current draw off the battery (and all it has to do is power the computers-fuel pump-and coils) by turning the engine over-it should start. I also would not worry about gas in the catalytic converters because the motor should really not be turning over any more under this condition than if the starter motor was turning it over. All you are doing is using the energy of the rolling car to turn over the motor instead of the starter motor.

Keep the faith,

Bill

Disclaimer: I have done my best in the above explanation using the knowledge I have. I am fallible and readily admit it and apologize in advance to anyone who is offended or thinks they maybe offended or in any way harmed by this post.
I agree Nav, it just might push-start with a partially discharged battery. I would hit the start button without depressing the clutch so it just turns on the ignition, no starter. But with a dead battery, forget it. There's the electric column lock to consider. You need to be sure you can steer when push-starting.
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