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Car Stalls Upon Start-Up 

 

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 Post subject: Car Stalls Upon Start-Up
Posted: Sat Jun 10, 2006 2:53 pm 
Getting Side Ways
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I recently had a flat battery, i recharged it and now when i go to start it, it stalls as soon as i release the key from the start position. WTF is going on? Car was fine until battery went flat

 

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Posted: Sun Jun 18, 2006 12:05 pm 
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could be

1. loose or faulty electrical connections at distributor, coil or alternator.

2. insufficient fuel reaching the fuel injector(s) (check fuel pressure)

3. vacuum leak at gasket surfaces of throttle body. make sure that all mounting bolts/nuts are tightended securely and that all vacuum hoses connected to the throttle body and manifold are positioned properly and in good condition.

these things could help
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Posted: Sun Jun 18, 2006 5:35 pm 
Getting Side Ways
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Ride: Ford FPV FG F6 310

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does it fire at all? if you rev it up will it run? does it misfire?

 

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Posted: Sun Jun 18, 2006 7:47 pm 
Getting Side Ways
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smoke_rubber wrote:
does it fire at all? if you rev it up will it run? does it misfire?


it turns over fine, starts, and as soon as i release the key from the start position coughs and then stalls with the battery light coming on.

i think its the coil, i pulled out a plug and earthed it and spark is piss weak

 

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Posted: Sun Jun 18, 2006 8:02 pm 
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turn the key to the on position and make sure you have power to the coil.

the car thas two circuits to the coil
1. in the START position
1. in the ON position.
the coil powers up when cranking but power drops of as soon as you release the key.

it sounds a lot like the problem i had with a holden

 

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Last edited by shevy on Sun Jun 18, 2006 8:06 pm, edited 1 time in total.

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Posted: Sun Jun 18, 2006 8:03 pm 
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If your car has a coil resistor this could be faulty. What happens is the coil is 8 volts and normally runs thru the resistor which drops 12V to 8V. However, when you turn the key to start, the resistor is bypassed and the coil gets the full 12V giving a better spark for starting. So maybe when the key is returned from start to ON, because the resistor is faulty, the coil gets no power.
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Posted: Sun Jun 18, 2006 8:19 pm 
Getting Side Ways
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thats old cars that do that, new cars don't have a ballast resistor.

 

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NEW RIDE - FPV FG F6 6spd Auto. 12.26@114MPH, 1.88 60FT on Cheapy Tyres with 38PSI - Stock except K&N filter!

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Posted: Sun Jun 18, 2006 8:40 pm 
Getting Side Ways
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sounds like a coil to me.

hey, you should be able to diagnose it, your an auto leccy arent ya? :D :P

 

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R.I.P. BF XR6 Turbo - You will not be forgotten :( 12.06@120MPH

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Posted: Sun Jun 18, 2006 8:45 pm 
Getting Side Ways
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smoke_rubber wrote:
sounds like a coil to me.

hey, you should be able to diagnose it, your an auto leccy arent ya? :D :P


only a first year :oops:

plus i already have!! as per the other thread!!

 

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Posted: Sun Jun 18, 2006 8:48 pm 
Getting Side Ways
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Ride: Ford FPV FG F6 310

Power: 149 rwkw

Location: Brisbane
QLD, Australia

:oops: oh yeh.. didn't see that thread.

 

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NEW RIDE - FPV FG F6 6spd Auto. 12.26@114MPH, 1.88 60FT on Cheapy Tyres with 38PSI - Stock except K&N filter!

R.I.P. BF XR6 Turbo - You will not be forgotten :( 12.06@120MPH

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Posted: Sun Jun 18, 2006 9:01 pm 
Getting Side Ways
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Location: Launceston
TAS, Australia

this is the resistance i got from my coil:

Primary: 0.6 ohm
Secondary: 6.75k ohm

my gregory says:

Primary: 0.41 - 0.45 ohm
Secondary: 7.12 - 7.87k ohm

what do you think. (I don't know much about coils yet :oops: )

 

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