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18-03-2009, 12:20 PM
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5lt fairmont ghia
Join Date: Nov 2007
Location: brisbane
Posts: 76
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when my car is sitting in gear it will drop its revs down to about 500 and then after a couple of nimutes will pick back up to 750, can anyone please tell em why it might do this?
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this generation of car enthusiasts didnt invent the art of 'cruising' , 'cutting bog laps' , 'racing' and 'burnouts'. its funny how the past generation or two stardted it and now are the ones handing out the fines AU II FAIMONT GHIA " TIX35" 5.0lt |
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18-03-2009, 01:47 PM
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#2 | |||
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Walking with God
Join Date: Mar 2005
Location: Melbourne
Posts: 7,321
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Quote:
Dirty fuel, dodgy or dirty plugs, a crook lead, dirty air cleaner, dirty throttle body, dirty IAC (also known as ISC), coil pack on the way out, dirty fuel filter. Firstly I'd clean the IAC/ISC. Easy and cheap to do. *Many idle issues are caused by this being dirty. Cleaning ISC Valve http://www.fordforums.com.au/showpos...9&postcount=43 Then I'd clean the Throttle body. This is for an I6 but the iside of the TB will look about the same as a V8. * As above. Cleaning Throttle Body http://www.fordforums.com.au/showpos...2&postcount=48 Then I'd check your air cleaner. Give it a bit of a tap and see how much rubbish comes out of it. Then I'd check your plugs. If you use the NGK $5 items, then replace the lot. Cheap and easy enough to do. If all that fails then you could reset the ECU. Resetting of AU ECU http://www.fordforums.com.au/showpos...9&postcount=85 If the problems still persists after resetting the ECU, then I'd get the leads tested and perhaps changed. If the problem still persists, change the fuel filter. Changing Fuel Filter http://www.fordforums.com.au/showpos...3&postcount=37 If all that fails, then take it to a trusted mechanic who can scan for fault codes. I'd be utterly surprised however, if you needed to after working down the list! LOL! All the best with it. GK
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2009 Mondeo Zetec TDCi - Moondust Silver 2015 Kia Sorento Platinum - Snow White Pearl 2001 Ducati Monster 900Sie - Red Now gone! 1999 AU1 Futura Wagon - Sparkling Burgundy On LPG Want a Full Life? John 10:10 |
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18-03-2009, 05:23 PM
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#3 | ||
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FF.Com.Au Hardcore
Join Date: Sep 2007
Posts: 717
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I've worked through that list and more! :P Still can't figure out why it's idling rough :( Best of luck with it
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18-03-2009, 07:10 PM
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#4 | |||
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Walking with God
Join Date: Mar 2005
Location: Melbourne
Posts: 7,321
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Quote:
GK
__________________
2009 Mondeo Zetec TDCi - Moondust Silver 2015 Kia Sorento Platinum - Snow White Pearl 2001 Ducati Monster 900Sie - Red Now gone! 1999 AU1 Futura Wagon - Sparkling Burgundy On LPG Want a Full Life? John 10:10 |
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18-03-2009, 07:51 PM
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#5 | ||
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The Origional, The Best
Join Date: Dec 2006
Location: Darwin, NT
Posts: 709
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dropping down then moving back up again, could be the aircon compressor kicking in and out?
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Current Mods 2.5" Red Back Exhaust | C2R Grill | Brumby Front Bar & Driving Lights | 18" Optic Blacks | Tickford Intake | Blue Momo Shifter Knob & Wheel | BA Scuff Plates with Ford Metal Inserts Future Mods Lowerage on KingSprings Lows | Engine...Period | Sounds System I Use And Recommend F1 Tyres And Wheels On The Gold Coast Proud Supporter of Beat The Heat (NT)
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18-03-2009, 08:03 PM
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#6 | |||
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Walking with God
Join Date: Mar 2005
Location: Melbourne
Posts: 7,321
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Quote:
GK
__________________
2009 Mondeo Zetec TDCi - Moondust Silver 2015 Kia Sorento Platinum - Snow White Pearl 2001 Ducati Monster 900Sie - Red Now gone! 1999 AU1 Futura Wagon - Sparkling Burgundy On LPG Want a Full Life? John 10:10 |
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Idle problem
Hybrid Mode