A small battery that plugs into cigarette lighter when you battery is flat and after 5 mins(on memory) it has put enough power into the battery to start the car
Scotty
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A small battery that plugs into cigarette lighter when you battery is flat and after 5 mins(on memory) it has put enough power into the battery to start the car
Scotty
Or a jumper pack.
Or jumper leads and a mate.
But that wasn't the question.
Ps, the only time my jumper pack isn't in the patrol is when it's re-charging.
They are great devices:-)
FanTapstic!
Better still, recharge it while driving.....Quote:
Originally Posted by taslucas
towing your jigger too far will bugger the linings on the drive plates in the box and will not start your car
as the oil pump is not working then there is no gears. pull up on a slight downhill, turn the engine and let it roll down the hill and you will see what happens.
Conflicting stories when you do a search but it seems the early autos with the Power Glide transmission seem to work as there is a pump before the trans??
Only looked into it quickly but it seems it can work but with only some types??
It takes a long time to recharge them from 12v. If it's dead flat your looking at 10 plus hours to charge off 12v.Quote:
Originally Posted by NP99
FanTapstic!
That may make sense as to why it's an old rumour. Maybe it could have been done back in the day....Quote:
Originally Posted by Bloodyaussie
FanTapstic!
Auto's work using hydraulic pressure to actuate the friction plates. The pressure is derived from a pump generally mounted on the input shaft directly after the torque converter. Without the motor running you will not have pressure to activate any drive plates. Some early transmissions such as torqueflite had two pumps, one at the front and one at the rear so in theory you could roll start them.
I can't see how this is going to work for an auto, hell, it doesn't always work for a manual.
I had a flat battery in my 4.8 (Manual) and even towing it at 40KPH failed to start it.
Seems the fuel pump needs power (probably quite a lot of power considering the amount of fuel it shifts) and if the battery is dead flat then it's just not possible to supply enough to power the pump and start the engine.
In the end I swapped the battery from the running car into mine - started it up and then while it's running swapped the batteries back. Drove straight to the battery shop then.
Next time Nissan tell me my battery is weak I promise to pay attention - they quoted 2/3 of the price I ended up paying.
The received wisdom around here is that you never try to push start an auto (or tiptronic for that matter) it just doesn't work. We did try push starting a tractor once (I was very young) and destroyed the starter and transmission.