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Discussion Starter #1 (Edited)
OK, we've got a AU Fairmont which blows black dusty smoke on ignition (especially first run of the day). I tried using fuel additive (brand has slipped my mind) and it seemed to fix the problem i.e.: better acceleration, less/no dust blasting out the back during acceleration etc. I used a sensible portion of additive EVERY time I fill up the car, as its the only way of avoiding the smoke. However, a tank or so later once I stop using the additive, the smoke and poor responsiveness of the engine comes back. I've tried numerous different brands of fuel and from different locations with no result, so I'm utterly convinced the car is stuffed in someway. What is causing this? How can it be fixed? I'd prefer ideas that didn’t involve a Ford dealer repairing anything, they're crap and cause more problems than they ever fix.

Secondly, the fuel consumption is hideous. Typical trips are about suburb->city and back again, and a little (say 50-100 kms) highway travel. Even when driven like a granny, maximum kms are about 290 per tank. This doesn’t seem nearly enough to me.

I'm looking for real advice here, its a good car but these two things are really shiting me.

And finally, does window tinting done by Ford on new vehicles have a lifetime warrantee? The rear window has some horrendous bubbling and rippling effects all over and is a bit of an eyesore (the car is only 3 or so years old too!!!).
 

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Tickford and FPV Bloke
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How many kms has it done for a starter - smoke isnt uncommon even the BA's blow a bit on first start.

Engine management could be the problem maybe something isnt set correctly, it should do way more then 290 kms per tank. I wouldnt be happy unless i was getting 450 atleast!! even when flogging.

Maybe you should take it to someone like herrods and get them to look at it if your not happy with Ford.
 

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BA'o'Matic 100% working.
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Sounds like it is running way too rich, check all the sensors or get them checked properly, intake, oxygen sensor etc.

Window tinting if it was good stuff will carry a 5+ year warranty, ford would have subbed the work out, but as they supervised talk to them first, and don't take NO for an answer, if is badly bubbled you can even run a risk of not passing a roadworthy (not that VIC have them per year).

Jason
 

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I think the black smoke is from running rich which would make sense as you fuel consumption is waay up! average from my tank is around 450ish.

Incomplete combustion of the mixtures perhaps? check the plugs

Im not all that mechanically minded but these might be worth a look. Engine management would be a good start as XT220 suggested
 

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known as tibbo
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You haven't mentioned the odo reading or what else other than adding octane booster
you have tried to fix the problem
In this order i'd be looking at
Air and Fuel filter, plugs and Leads, cat convertor then move onto diagnostics and codes,,Failing that coil pack and sensors (although they should pump out codes if faulty)
 

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Man even my car gets more than 290 to a tank.
 

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My AU I Fairmont has around 95K, fuel economy is pretty good I thought using almost 2 tanks from Cooma NSW to Brisbane with 2 adults and 3 grown children in car with all holiday gear sitting on or around speed limit. This would probably equate to around 700 to the tank at highway speeds. No sign of any black smoke currently.
 

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On the 7th God Made Ford
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Where does it idle at?
 

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Discussion Starter #9 (Edited)
OK, more info:

64,400 Km on the clock.
Range: 220-260 per tank

I've been using Nulon fuel additive and it gives good-ish results (an extra 30-40kms per tank, better acceleration, etc), except that the car goes back to its old habits once I stop using it.

Its not driven all that hard at all.

Also, the exhaust tip is BLACK with soot and grime. Not happy, it was lovely shiny chrome once long, LONG ago... :-D

Oh, and it idles anywhere between 700rpm and 1400rpm, dependly on how the planets are aligned and whether the cat licked her left paw or right paw first in the morning.
 

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i saw a ba fairmont 6 floggin it to get through a yello infront of me, and it blew some fuel out the back also. and totally squatted on its bum when floored too.
 

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I feel that the problem is that the car is running too rich on fuel especially if your saying that the exuast tip is covered in blackness. Take it to someone now
 

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RIP Sox.....
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TPS = Throttle position sensor.
It's mounted on the side of the throttle body and is connected to the throttle shaft.
It moves in tune with the throttle shaft and tells the ECU whether the throttle is closed, part open or fully open.

Rick.
 

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Yep, i had this same problem in my 99 AU, just replaced both the TPS and oxy sensors and all was fixed. Very expensive from ford though! Try some wreckers first.
 
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Definately something wrong with a sensor making it run rich. More likely TPS than oxy sensor but could ever be bad map sensor, air temp or water temp. From factory most of these sensors have a variance of up to 10%. Even checking them may not reveal much as the voltage variance figure is quite small. I'd get Ford to check it out (sorry for this advice) as they should be able to narrow it down pretty quick (especially if your not to confident checking out the sensors yourself). Fuel additives are a waste of time and the spark plugs should be OK. And also the Fuel pressure reg could be out.
 

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Bourbon powered V8
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Check the TPS - there is a thread on how to do this floating about somewhere. If that doesn't fix it, replace the O2 sensor in the exhaust. You cold also try cleaning the Idle Speed control valve, but I doubt that is affecting the car running rich.

If all of that still doesn't work, then take it to Ford and ask them to get a reading of all codes - repco and Ultratune should also be able to do this for you. Then you just need to replace whatever component is giving the fault code (if any).

My bet is the O2 sensor is stuffed, as this is the major component that determines how rich/lean the engine is running. If the O2 is not sending back the right codes, the engine runs rich be default, as running too lean is not good for the motor.
 

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grippin'n'rippin
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My bet is that its the oxy sensor. Had the same problem only worse. My car looked like it was running on diesel. Also the idle was all over the place. The ecu uses the oxy sensor to adjust the mixture. The readings it gives out are 0-1 Volt so if its clogged or stuffed a very small reading difference vill make a BIG difference in mixture. Problem went away as soon as i changed it. Try the wreckers as they are not cheap. $84 for an ea oxy sensor at sprint auto, $114 at repco. Ford wanted something like $160 for a new one.
if/when you change it, you will have to restart the ecu so it 'learns" the new readings of the oxy sensor.
 

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Bourbon powered V8
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I think the EA ones are a 3 wire sensor - the AU ones are a 4 wire, so make sure you get the right one or you will just make the problem worse.
 
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