Jump starting a 22 Mach 1

[Xpdwheel]

Hey,
I might be over thinking this.
But is there anything different about jump starting the car? I’m thinking there may be some electrical part to protect. I plan on using a jump box.
thanks,
John

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[JetGray_Mach1]

Same as any other car.

Page 236-238
https://www.fordservicecontent.com/...-Owners-Manual-version-1_om_EN-US_11_2021.pdf

There is no special procedure for the Mach 1 its the same.

I see you mention jumpbox. Well even easier just hook it up and start.

 

[skinnyb]

No problems. I have never jumped mine, but have done many other S550 Mustangs with my jump box.

 

[Xpdwheel]

Thanks I figured I’d ask. There’s so much electrical stuff today. Best

 

[V8Platty]

I carry a jump box in my vehicles too, so I never really gave this any thought. But in a related question, with any S550 having a manual transmission, is it still possible to "bump-start" the car by popping the clutch if there's a dead battery?

I'm sure it is mechanically, but if there's no power, how does the car know you are "key on"? In older cars it was simple - you turned the key to the "key-on" position, got the car rolling, put the transmission in 1st or 2nd and then popped the clutch. But how would the S550 know you pushed the button if there's no juice in the car to energize that circuit?

 

[JetGray_Mach1]

I carry a jump box in my vehicles too, so I never really gave this any thought. But in a related question, with any S550 having a manual transmission, is it still possible to "bump-start" the car by popping the clutch if there's a dead battery?

I'm sure it is mechanically, but if there's no power, how does the car know you are "key on"? In older cars it was simple - you turned the key to the "key-on" position, got the car rolling, put the transmission in 1st or 2nd and then popped the clutch. But how would the S550 know you pushed the button if there's no juice in the car to energize that circuit?

For push starting you always need some juice even with older car when you turn the key to on if you dont have any power it wont work.

With the S550 it can easily be done. You just push the start button (without depressing clutch) "basically ignition on" then put it in second and pop the clutch.

 

[V8Platty]

OK - So some power needed to bump start an S550 with a manual.

I know you can start the older simpler manual transmission cars even if the battery is completely dead. Once the car is rolling sufficiently, and you pop the clutch, it only takes a few rotations of the engine to power the alternator and provide power to the plugs. I had to do this with a '79 5.0 RS Capri that was missing it's battery, so it does work.

 

[Skye]

https://www.mustang6g.com/forums/threads/bump-starting-s550.207500/

For those with MTs, a recent thread of additional experiences when bump starting.

For those using a jump box, yes, no prep needed. Treat the box as a donor vehicle and attach cables as you normally would.

 

[wingnutt]

https://www.mustang7g.com/forums/threads/normal-oil-temperature-for-5-0.161480/

For those with MTs, a recent thread of additional experiences when bump starting.

not complaining, but looks like you linked an oil temp thread

 

[Skye]

not complaining, but looks like you linked an oil temp thread

I appreciate you letting me know. That post has been corrected. Thanks.

 

[JetGray_Mach1]

OK - So some power needed to bump start an S550 with a manual.

I know you can start the older simpler manual transmission cars even if the battery is completely dead. Once the car is rolling sufficiently, and you pop the clutch, it only takes a few rotations of the engine to power the alternator and provide power to the plugs. I had to do this with a '79 5.0 RS Capri that was missing it's battery, so it does work.

Maybe that works on the classics. As far as I know newer cars need a little bit of juice.

 

[V8Platty]

Maybe that works on the classics. As far as I know newer cars need a little bit of juice.

I'm sure you are right. Any car that does not have a wired mechanical key will need enough electrical power available to energize the button start circuit and engine computer. The older cars don't have that requirement.

I think that's what the linked thread a few posts before was saying. Even an S550 with a completely dead battery will work because once the car is rolling, and the clutch dumped, the crankshaft pulley will spin the alternator pulley, energize the electrical system, and recognize the start button press. I'm tempted to find a hill, pull the ground cable on my Mach 1, and see if I've got this right.

 

[JetGray_Mach1]

I'm sure you are right. Any car that does not have a wired mechanical key will need enough electrical power available to energize the button start circuit and engine computer. The older cars don't have that requirement.

I think that's what the linked thread a few posts before was saying. Even an S550 with a completely dead battery will work because once the car is rolling, and the clutch dumped, the crankshaft pulley will spin the alternator pulley, energize the electrical system, and recognize the start button press. I'm tempted to find a hill, pull the ground cable on my Mach 1, and see if I've got this right.

Maybe but I don't think you should do that. It is not good for newer cars to disconnect the battery since might damage the electrical systems in the car. But if you do try and get it started, let us know lol.

 

[willywind]

many countries where manual cars are the norm and money is tight, many (most?) drivers know how to push start a car…The same with changing a tire because a tow truck is too expensive or it might not even be available.

like someone said, second gear makes bump start smoother (when you push start in first, the car might even suddenly stop). This is very evident when push starting motorcycles: in first gear, when you pop the clutch the rear tire might skid (you can sit hard on the seat while popping the clutch to prevent skidding) and second/third works well. I. Cars, reverse is generally a ratio in between 1st and 2nd so it should be okay. If the engine stops running while driving at speed, you don’t engage second because that would be a money shift; you just put it in a higher gear (4th, 5th).

and yes, I have pushed started MANY different cars and bikes over the years and I cannot even count the times I have helped pushing on the street. The last car I pushed started was my 2017 Jetta just to teach my wife how it’s done. Now, with fancier/more electronically complicated cars, all bets are off (looking at you, fancy German cars…).

Regarding whether you need some juice in a battery: I guess it depends on the electrical system. Don’t quote me on this but I think cars with alternators usually cannot be pushed start without battery/no power in battery because you need power for the ignition system. I know an old car of mine needed some juice in the battery for push starting, but my old motorcycle with generator didn’t even have a battery (it didnt have a kick start so it was push starting only).

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