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Thanks for the info. Could this ECT sensor be the problem and do you know how much they run? Also where is this sensor located? Does my car's symptoms sound like anything a bad ECT sensor would cause?
98 Black Mystique LS Duratec V6 2.5L ATX
K&N air filter, cleaned EGR, new Autolite double platinum plugs, magnacore wires, rebuit Sonnax valved VB, TSS, TPS.
Mobil 1 5W-30
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Originally posted by Ra\/en:
Thanks for the info. Could this ECT sensor be the problem and do you know how much they run? Also where is this sensor located? Does my car's symptoms sound like anything a bad ECT sensor would cause?
Actually, it sounds like the Idle Air Control valve to me. I had the same problem, but could hold the gas pedal down just a wee bit and it ran fine. The IAC is about $40-$45 at Autozone and fairly easy to replace on the Duratec. There's a little threaded stop that my throttle bracket stops against. I just gave it a turn or 3 (effctively keeping the gas pedal down a bit) and drove it like that for several weeks with no problems. I changed the IAC and haven't had a problem since (6 mos. now) My .02
'99 Sport TropicGreen,Duratec, SVT exhaust, Brembo rotors, Ceramic pads, K&N filters(oil & air), Alpine CDM7874, Polk DB570 speakers front and rear. Fog light mod. 50% Formula One tint.
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Where is the IAC located? And is this something that I could replace fairly easily? Thanks.
If I were to clean the IAC, how should I do it and what should I use to clean it? Is there a how-to on cleaning the IAC?
Last edited by Ra\/en; 12/05/04 05:07 AM.
98 Black Mystique LS Duratec V6 2.5L ATX
K&N air filter, cleaned EGR, new Autolite double platinum plugs, magnacore wires, rebuit Sonnax valved VB, TSS, TPS.
Mobil 1 5W-30
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Originally posted by Ra\/en:
Where is the IAC located? And is this something that I could replace fairly easily? Thanks.
If I were to clean the IAC, how should I do it and what should I use to clean it? Is there a how-to on cleaning the IAC?
IAC is toward the back of the intake behind the throttle body. Cleaning isn't really effective, but it's fairly easy to replace. It's actually attached to the upper intake. If you get a new one, you'll easily be able to spot the old one on the engine. Maybe someone will post a picture. 
'99 Sport TropicGreen,Duratec, SVT exhaust, Brembo rotors, Ceramic pads, K&N filters(oil & air), Alpine CDM7874, Polk DB570 speakers front and rear. Fog light mod. 50% Formula One tint.
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Originally posted by gearhead:
IAC is toward the back of the intake behind the throttle body. Cleaning isn't really effective, but it's fairly easy to replace. It's actually attached to the upper intake. If you get a new one, you'll easily be able to spot the old one on the engine. Maybe someone will post a picture.
You say it and here it is..........
1996 2.5LT V6 Contour ATX My Tour+help/info pics
E0 rims, Gutted Pre-Cats,CTA Custom Exhaust & Intake, Diablo Chip.
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Originally posted by chongo:
Originally posted by gearhead:
IAC is toward the back of the intake behind the throttle body. Cleaning isn't really effective, but it's fairly easy to replace. It's actually attached to the upper intake. If you get a new one, you'll easily be able to spot the old one on the engine. Maybe someone will post a picture.
You say it and here it is..........
YOU DA MAN!!!!! 
'99 Sport TropicGreen,Duratec, SVT exhaust, Brembo rotors, Ceramic pads, K&N filters(oil & air), Alpine CDM7874, Polk DB570 speakers front and rear. Fog light mod. 50% Formula One tint.
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Ok, I see it. Now, how do you remove that thing? It doesn't look too hard to replace once someone tells me how to remove it. I don't want to break anything, so I will wait until someone replies.
Thanks,
Nick
98 Black Mystique LS Duratec V6 2.5L ATX
K&N air filter, cleaned EGR, new Autolite double platinum plugs, magnacore wires, rebuit Sonnax valved VB, TSS, TPS.
Mobil 1 5W-30
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2 screws connect it to the UIM.
You can see one of them in the picture.
1996 2.5LT V6 Contour ATX My Tour+help/info pics
E0 rims, Gutted Pre-Cats,CTA Custom Exhaust & Intake, Diablo Chip.
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Originally posted by Ra\/en:
Ok, I see it. Now, how do you remove that thing? It doesn't look too hard to replace once someone tells me how to remove it. I don't want to break anything, so I will wait until someone replies.
Thanks,
Nick
Like Chongo said, the top one's in the picture. The bottom one is, well, on the bottom. Very obvious once you have the new IAC. The bottom is a wee bit difficult to get to, but not too bad. The whole job takes less than 1/2 hour.
'99 Sport TropicGreen,Duratec, SVT exhaust, Brembo rotors, Ceramic pads, K&N filters(oil & air), Alpine CDM7874, Polk DB570 speakers front and rear. Fog light mod. 50% Formula One tint.
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Thanks guys. Do you think this could be the cause of my problem? I mean does the IAC affect the car like this? (How mine is acting.) Is it worth replacing?
Thanks again.
98 Black Mystique LS Duratec V6 2.5L ATX
K&N air filter, cleaned EGR, new Autolite double platinum plugs, magnacore wires, rebuit Sonnax valved VB, TSS, TPS.
Mobil 1 5W-30
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