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Old 02-04-2007, 08:53 PM   #1
tickfordguy
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Default funny idle

car idles ok but when u stop hard it drops down a couple hundred rpm have all new leads and plugs seems to run ok but every now and then it drops down and then up what could it be

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Old 03-04-2007, 08:06 AM   #2
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Default idle

any one have any ideas on what it could be
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Old 03-04-2007, 08:13 AM   #3
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Dirty air filter .... sounds weird ... but it does this on factory LPG models moreso when stopping quickly revs will drop to nearly stall point and regain.

Other than that ... I'd say your Idle Control Solenoid (I think it's called that) may be showing initial signs of dying. Not sure if it's a cleanable item ... or if it's just better to replace it or not.

Others will give you a better idea.

Might be an idea to spray some carby cleaner into your throttle body too ... it's probably oiled/gummed up ... the butterfly can some times stick a bit when gunked up too.
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Old 03-04-2007, 12:21 PM   #4
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Check the filter as Mechan1k has suggested as it's so easy to do. If it's dirty, replace it. If that doesn't help, then give these a go.

1. Cleaning ISC Valve
http://www.fordforums.com.au/showpos...9&postcount=43

2. Cleaning Throttle Body
http://www.fordforums.com.au/showpos...2&postcount=48

If the idle hasn't improved, you may consider giving this a go.
3. Setting Base Idle
http://www.fordforums.com.au/showpos...1&postcount=47

Cheers and all the best with it,

GK
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Old 03-04-2007, 12:24 PM   #5
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Well done with the links GK.

I swear you wrote Chief though :hihi:
Well that's what I saw in the email notification ... :P
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Old 03-04-2007, 12:36 PM   #6
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I had the same issue, when stopping hard revs dropped. Had the auto serviced last week and havn't had this issue since.
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Old 03-04-2007, 01:03 PM   #7
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thanks gk and other ford dudes
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Old 03-04-2007, 01:04 PM   #8
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Quote:
Originally Posted by Mechan1k
Well done with the links GK.

I swear you wrote Chief though :hihi:
Well that's what I saw in the email notification ... :P
You got me! LOL!

I actually did write chief first, as I'm often mucking you 2 guys up! I changed it straight after, as I checked your post to make sure I was giving credit where it was due!

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Old 03-04-2007, 01:05 PM   #9
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Quote:
Originally Posted by tickfordguy
thanks gk and other ford dudes
You are welcome!

Hope it works out cheap and easy for you.

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Old 03-04-2007, 02:13 PM   #10
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Quote:
Originally Posted by GK
Hope it works out cheap and easy for you.
GK
only wish that were true (cheap part anyway)

TIP: fix problems when they happen not when you have time, it will cost more than you have time for...trust me
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Old 03-04-2007, 02:24 PM   #11
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The car is running too rich at idle and the plugs arent burning the extra fuel to create enough engine vacuum.Also could be the tps going haywire and not referencing the correct idle voltages to the ecu which controls the isc module for idle speed
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