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20-03-2015, 03:57 PM
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FF.Com.Au Hardcore
Join Date: Mar 2005
Posts: 1,761
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Hi all,
Got a SII Fairmont. Recently put a new alternator in which charges correctly according to my volt meter, on full and no loads etc. However when stopped at lights, it develops a light rough idle under load when I have lights on, demister and heater/air con on etc. Is hard to describe because the idle itself is fine however it causes the car to give off a light vibration. If alternator is charging correctly, what other things can I look out for? I have cleaned the throttle body and IAC valve and also changed the spark plugs. Fuel mileage is perfect and spot on so my oxy sensor should be ok also. Or am I expecting to much out of a 15 year old car? Expecting it to work like a brand new FG?
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Build Thread: BA XR8 with all the goodies. fordforums.com.au/showthread.php?t=11247663 |
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20-03-2015, 06:06 PM
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Au Falcon = Mr Reliable
Join Date: Sep 2009
Location: North West Slopes & Plains NSW
Posts: 4,076
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Hi xr8 007, i would probably check all bolt on's are bolted snug & tight under the bonnet & under the car especially the exhaust & cat. Good luck!
cheer's, Maka
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Ford AU Series Magazine Scans Here - www.fordforums.com.au/photos/index.php?cat=2792 Proud owner of a optioned keeper S1 Tickford Falcon AU XR6 VCT - "it's actually a better-balanced car than the XR8, goes almost as hard and uses about two-thirds of the fuel" (Drive.com 2007) |
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21-03-2015, 11:26 PM
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Guest
Join Date: May 2013
Posts: 1,934
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Engine idle reset?
https://youtu.be/kN8Z5jOl2WQ?list=UU...0EW8-YuKL9a9VA Mine runs like an FG....ONLY LOUDER!!!!!!!!!!!!!!!! |
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22-03-2015, 05:35 PM
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FF.Com.Au Hardcore
Join Date: Mar 2005
Posts: 1,761
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thanks dudes, will have a look.
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Build Thread: BA XR8 with all the goodies. fordforums.com.au/showthread.php?t=11247663 |
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14-07-2015, 10:53 PM
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FF.Com.Au Hardcore
Join Date: Mar 2005
Posts: 1,761
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So still having this issue even aftef ecu reset. Interesting that there was a slight improvement at the start but the issue is back. Any other suggestions??
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Build Thread: BA XR8 with all the goodies. fordforums.com.au/showthread.php?t=11247663 |
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14-07-2015, 11:40 PM
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Q - CAR
Join Date: May 2011
Location: Central Coast ..
Posts: 746
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try tightening the bolts on your TPS.
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AU FORD STROKER 347 Windsor Stroked; (10:2.1) / TFS 190 heads / TFS R Series 90 manifold / Accufab 85mm Race TB / 90mm Lightening MAF / K&N 90mm pod CAI / FTI custom cam (230-236 @ 50) / Bosch 36lb inject / MSD coil + leads / ASR 8lt sump / Mcleod RST Twin Plate Clutch / Pacemakers PH4006 + 3" single exhaust / BA Premium brake pac / Pedders Xtreme coil over shocks / 30mm Whiteline sway / 3.45 LSD / Custom FG bonnet / Ghia interior upgrade / Enkie Rims - staggered / Quarter Horse tuned. |
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15-07-2015, 03:22 PM
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Au Falcon = Mr Reliable
Join Date: Sep 2009
Location: North West Slopes & Plains NSW
Posts: 4,076
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Long shot xr8 007, but is the battery the right amperage? Also have a suss of your inlet manifold bolts & clean your ics valve on the throttle body. If all fails consider getting a ecu scan to see if everything is all good sensor wise. Good luck!
cheer's, Maka
__________________
Ford AU Series Magazine Scans Here - www.fordforums.com.au/photos/index.php?cat=2792 Proud owner of a optioned keeper S1 Tickford Falcon AU XR6 VCT - "it's actually a better-balanced car than the XR8, goes almost as hard and uses about two-thirds of the fuel" (Drive.com 2007) |
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30-07-2015, 11:25 PM
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Alternator
Join Date: Jan 2011
Location: Wide Bay QLD
Posts: 251
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If its only happening under load should be power related. Coil pack, check HT leads. Could be battery failing. But it wouldn't hurt to make sure the idle control on the throttle body is definitely clean and working. Pull it out of the car and clean it out properly if you didn't already.
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Another rough idle issue,,kinda
Linear Mode
