Roll start in a 7MT?

[PearlJamFanLV]

Can we do the old school roll and throw in gear to start the vehicle? I always wondered that about newer vehicle with push button start and manual transmission.

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[braften]

I believe it isnt possible because you need to press the clutch in to start it with the button.maybe you can somehow bypass it with some redneck wiring, but it currently requires the clutch to be in before it will let the spark work.

 

[kodiakisland]

Need juice for the fuel pump.

 

[Figmo]

I believe it isnt possible because you need to press the clutch in to start it with the button.maybe you can somehow bypass it with some redneck wiring, but it currently requires the clutch to be in before it will let the spark work.

Disclaimer: I know nothing about Bronco MT. But….

I don’t believe this is a thing. The clutch press is required to engage the STARTER - not to enable the ignition system. Otherwise, soon as you start to drive away and release the clutch, the engine dies.

My gut tells me you should be able to compression start a MT Bronco (as you can most manual transmission vehicles)

 

[PearlJamFanLV]

I believe it isnt possible because you need to press the clutch in to start it with the button.maybe you can somehow bypass it with some redneck wiring, but it currently requires the clutch to be in before it will let the spark work.

I'm aware of that, I wasn't thinking you just throw into gear. I used to have a 89 Ranger that I could roll start. You start down hill, with the clutch in, then release it in 2nd gear and it jumps to life, key would be in the on position.

 

[Donkeygyrl]

I will try this soon and report back

 

[braften]

Disclaimer: I know nothing about Bronco MT. But….

I don’t believe this is a thing. The clutch press is required to engage the STARTER - not to enable the ignition system. Otherwise, soon as you start to drive away and release the clutch, the engine dies.

My gut tells me you should be able to compression start a MT Bronco (as you can most manual transmission vehicles)

i get that, im saying the computer wont let the coils work if the clutch isn't in.

I'm aware of that, I wasn't thinking you just throw into gear. I used to have a 89 Ranger that I could roll start. You start down hill, with the clutch in, then release it in 2nd gear and it jumps to life, key would be in the on position.

i think the computer still needs to see the clutch in before it'll let the coils work. feel free to try a roll start if you want and prove me wrong, id be glad to see it. i just dont think the brain box will let it happen.

 

[SVTLightning]

Not possible. It's been tried before.

There must be a way!

 

[SVTLightning]

I have tried to turn it off while driving and that doesn’t work.

 

[Figmo]

oooo….now I gotta find someone with an MT and try it.

I’ve just never heard of a vehicle that you couldn’t do this with. And I can’t really think of what the mechanism would be to disable it. Can’t be clutch related as the clutch engages/disengages during normal operation. How would the computer know the difference between a compression start and a super slow rock crawl? And if it could, why would anybody even waste time designing that in the first place? To what end?

But I’ll admit - when you’ve got a million sensors in a vehicle…anything’s possible.

 

[kodiakisland]

Again, you have to have fuel.
Go unhook the battery and give’r a try.
Report back.

 

[Figmo]

Again, you have to have fuel.
Go unhook the battery and give’r a try.
Report back.

Why do you believe the fuel pump would not be running?

 

[SVTLightning]

Again, you have to have fuel.
Go unhook the battery and give’r a try.
Report back.

This was the second time I tried it and it was not happy! First time started up no problem. 100% dead battery sure maybe an issue but having not enough power to start but enough to power fuel pump is another thing. Sorry for the poor video I wasn’t sure what was happening second time. Disconnected battery and reset everything and all is well again, LOL!

 

[Figmo]

This was the second time I tried it and it was not happy! First time started up no problem. 100% dead battery sure maybe an issue but having not enough power to start but enough to power fuel pump is another thing. Sorry for the poor video I wasn’t sure what was happening second time. Disconnected battery and reset everything and all is well again, LOL!

So the answer to the OP’s question of “can you compression start a MT Bronco” is “yes”. (As you said, the first time it worked). So long as you have enough battery power to run the electronics (which is less than is needed to run the starter motor).

But obviously - if the battery is stone cold dead that’s a whole ’nother thread. In that case, I wouldn’t expect it to start (e.g. no fuel pump, no computer, no just about everything).

 

[Lil Red Broncette]

Again, you have to have fuel.
Go unhook the battery and give’r a try.
Report back.

Yes fuel is needed, but there are plenty of manual trans vehicles that can be roll started even with dead batteries. The bit of alternator action gives enough juice to put some fuel in.

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