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Stalls when cold rough idle all the time 

 

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 Post subject: Stalls when cold rough idle all the time
Posted: Sun Sep 06, 2009 12:47 am 
Fordmods Newbie
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Age: 38

Posts: 2

Joined: 30th Aug 2009

Ride: XF Falcon

Location: Brisbane
QLD, Australia

The car is a stock dual fuel XF Falcon 4.1L Auto

stalls straight away when cold and idles really low/rough and takes like 5 times to get it started too.
I've replaced the fuel filter and fuel pump.

Here's what I noticed if I slightly close the choke butterfly when warm while engine is roughly idling on petrol it idles better
To me its running lean then, but the mixture screw is 2 1/2 turns out I even tried richening the mixture and it didnt make a difference on the idle.
I couldnt even drive it on petrol as it stalls if I let go of the accelerator pedal.
I tried advancing the timing and made no difference.

it drives good on LPG

Any ideas?
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 Post subject: Re: Stalls when cold rough idle all the time
Posted: Thu Sep 17, 2009 3:20 pm 
Stock as a Rock
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Posts: 124

Joined: 29th Nov 2008

Gallery: 10 images

Ride: 95 EF Mont

Location: melbourne
VIC, Australia

C110GTR wrote:
The car is a stock dual fuel XF Falcon 4.1L Auto

stalls straight away when cold and idles really low/rough and takes like 5 times to get it started too.
I've replaced the fuel filter and fuel pump.

Here's what I noticed if I slightly close the choke butterfly when warm while engine is roughly idling on petrol it idles better
To me its running lean then, but the mixture screw is 2 1/2 turns out I even tried richening the mixture and it didnt make a difference on the idle.
I couldnt even drive it on petrol as it stalls if I let go of the accelerator pedal.
I tried advancing the timing and made no difference.

it drives good on LPG

Any ideas?



your going to need a reco carby mate
or even a new one depending on your budget.

 

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1995 EF Ford Falcon Fairmont

2.5" Mandrel bent cat back exhaust
Custom intake snorkel
Clarion 6.5" speakers in front
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Twin 12" soundstream Subwoofers in boot
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 Post subject: Re: Stalls when cold rough idle all the time
Posted: Thu Sep 17, 2009 6:25 pm 
Getting Side Ways
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Age: 30

Posts: 3737

Joined: 22nd May 2006

Ride: BF F6 Tornado - #0077

Location: Bendigo
VIC, Australia

grandpa's XF did the same thing. also a 4.1 but it was 'efi'

Would love to know whats causing it when you fix it

 

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** For Sale ** http://www.fordmods.com/ford-parts-for-sale-f17/assorted-e-series-parts-t124697.html

F6 Tornado 2006 Build

Is it about sex? The engine in my car? Or a cure for cancer?
No?

Then f**k off

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 Post subject: Re: Stalls when cold rough idle all the time
Posted: Thu Sep 30, 2010 12:20 am 
Oompa Loompa
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Age: 60

Posts: 21

Joined: 29th Jan 2010

Gallery: 1 images

Ride: Falcon GLI Longreach 96

Location: Brisbane
QLD, Australia

It could be your vacum sensor on the firewall, unhook all the vacum lines with engine running and attach them one at a time and when it cut s engine revs, thats the one that not working properly. I spent $5000 on trying to get mine to run properly. Unhhooked the vacum lines to sensor and it even starts on gas now. The car sounds/ run A1 now after all the workshops and mechanics told me I need this and that, new this and that. Easy to fix. Moreton. :wink:
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