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#1 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
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I'm having some intermittent idle issues on my Series 1 Falcon.
When first stated on the morning the car runs fine for a while. Then the idle starts do drop and recover. Power is reduced. This happens when its in N or P or Drive. Air filter is clean. Checked all the piping to the bbm and it all looks clean as well. Put in half a bottle of injector cleaner about 100ks ago and it appears to behave a bit. Anyone have any ideas? I have a spare MAF lying around.. Maybe i should try changing it? Thanks./...
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Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#2 | |||
Miami Pilot
![]() Join Date: Jan 2005
Location: ACT
Posts: 21,701
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Quote:
If it's changing when warm, then I would say it is more likely to be O2 sensors, but you could change the TMAP first (it's under the TB on the AUs, not on the firewall like the E series ones were)
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The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb) 1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs). Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings FPV 335 build stats: <click here> Ford Performance Club ACT |
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#3 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
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Thanks.
Where abouts are the 02 sensors in the AUs? dont have a manual for one :(
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Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#4 | |||
Miami Pilot
![]() Join Date: Jan 2005
Location: ACT
Posts: 21,701
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Quote:
Also, have you tried cleaning the ISC valve? It's part of the TB. GK has a good write up on how to clean it.
__________________
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The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb) 1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs). Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings FPV 335 build stats: <click here> Ford Performance Club ACT |
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#5 | |||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
|
Quote:
Thanks
__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#6 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
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Cleaned out the ICS and the TB. No Luck. After that I tired removing the plug for the ICS. Car starts and stops imediately.. Isnt iy supposed to stay on??
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Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#7 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
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Also the TB appears to be completely closed when the car is off.
__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#8 | ||
Miami Pilot
![]() Join Date: Jan 2005
Location: ACT
Posts: 21,701
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Follow this link to find out more about the IAC/ISC. Bacially, disconnect, and adjust the screw until it idles, then reconnect and you should be good to go.
http://www.fordforums.com.au/showthr...ighlight=Valve
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The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb) 1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs). Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings FPV 335 build stats: <click here> Ford Performance Club ACT |
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#9 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
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Thanks Mate. will gibe it a go tomorrow..
__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#10 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
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Adjusted the idle still the same issue. doesnt make a difference if the plug is disconnected either.. Coud it be a fuel pump or should i change the Oxy sensor first?
__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#11 | |||
Miami Pilot
![]() Join Date: Jan 2005
Location: ACT
Posts: 21,701
|
Quote:
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The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb) 1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs). Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings FPV 335 build stats: <click here> Ford Performance Club ACT |
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#12 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
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Sorry Just clarifying When the ICS is connected again the RPM goes up to abt 1000. Doesnt make a difference on the idle issue,,,,
Got a spare at home (used) Do you need any speical sealer or gasket pit in if im changing it?
__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#13 | |||
Miami Pilot
![]() Join Date: Jan 2005
Location: ACT
Posts: 21,701
|
Quote:
But if it works as you've described, then I doubt it's the issue. Really sounds like an air leak somewhere. Have you checked the inlet manifold to head bolts? They have a tendency to work loose.
__________________
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The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb) 1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs). Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings FPV 335 build stats: <click here> Ford Performance Club ACT |
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#14 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
|
Nope.. Will check those.. Thanks
__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#15 | ||
Miami Pilot
![]() Join Date: Jan 2005
Location: ACT
Posts: 21,701
|
No worries - as you may be able to tell, diagnosing and fixing an idle issue over the internet is hard to do; it's a process of elimination, unfortunately.
__________________
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The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb) 1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs). Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings FPV 335 build stats: <click here> Ford Performance Club ACT |
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#16 | |||
FF.Com.Au Hardcore
Join Date: Sep 2006
Posts: 2,981
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Quote:
I've had the same issue for quite some time now myself. I still don't know what fixes it but can advise what hasn't New spark plugs new leads new o2 sensor injector cleaner cleaning the throttle body air filter oil/oil filter/fuel filter new exhuast (inc cat) new coilpack new injectors ecu retune tighten manifold new (second hand) engine/manifold/throttle body/icv/map new icv new battery So what is left that could be causing this issue? Fuel pump comes to mind but I find unlikely as it seems to hold up on at peak power with 10psi of boost, other thing that has come to mind is a bad earth, but then why would it only happen on rare occasions at idle? I've decided the issue is the car is possessed, only fix is a replacement (or exorcism) |
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#17 | |||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
|
Quote:
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__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#18 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
|
Can 02 sensors be swapped between cars with out issues?
Ihave 2 series 1 AUs so i can try that. Is there any special sealer or somethign i need to use if im to do this?
__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#19 | |||
Miami Pilot
![]() Join Date: Jan 2005
Location: ACT
Posts: 21,701
|
Quote:
O2 sensors don't kick in until the car is warm so maybe this is your issue.
__________________
-----------------------------------------------------------------
The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb) 1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs). Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings FPV 335 build stats: <click here> Ford Performance Club ACT |
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#20 | ||
Regular Member
Join Date: Nov 2005
Posts: 85
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I suffered with the same problem for years on a dual fuel.
Changed plugs, oxy sensor, tightened inlet manifold bolts without sucess. Then I came accross a friends petrol Au with a similar problem. On examination I found both engines had leaked coolant from the thermostat housing onto the manifold gasket thus causing a deterioration , above and below. Using a small wire brush I removed the gunk and completely sealed the area with silicon. To date the idle is fine on both fuels !!! |
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#21 | |||
FF.Com.Au Hardcore
Join Date: Sep 2006
Posts: 2,981
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Quote:
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#22 | ||
NC Fairlane Ghia
Join Date: Nov 2005
Location: Melbourne
Posts: 535
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Ok this apperas to be sorted now..
Decided on wednesday night to give it a good once over. Was checking the plugs and one of the leads just snapped in 2. Replaced all the leads and plugs yeterday and it appers to be ok now.. Thanks for all you help
__________________
Curent Rides: -NC Fairlane Ghia 3.9L -XC RallyPack Ute 5.8L -AU Falcon Wagon 4.0L Still Stock -80 Series LandCruiser 4.5 LPG |
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#23 | |||
Miami Pilot
![]() Join Date: Jan 2005
Location: ACT
Posts: 21,701
|
Quote:
__________________
-----------------------------------------------------------------
The Hammer: FG GTE | 376rwkw | 1/4 mile 11.793 @ 119.75mph 1.733 60' (4408lb) 1 of 60 FG MK1 335 GTEs (1 of 118 FG Mk 1 & 2 335 GTEs). Mods: Tune, HSD/ShockWorks, black GT335 19” staggered replicas with 245 & 275/35/19 Michelin Pilot sport 5s Daily: BF2 Fairmont Ghia I6 ZF, machine face GT335 19” staggered Replicas with 245s and 275s, Bilsteins & Kings FPV 335 build stats: <click here> Ford Performance Club ACT |
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