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Car spewing black crap out of exhaust wtf? 

 

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 Post subject: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 7:54 am 
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My driveway is now COVERED in black s**t, parents cracked it...

Had pacemaker 4499 and a metal hi-flow cat installed the other day and ever since the exhaust is just spewing black s**t, seems to do it on both gas and petrol. I stood behind the car while it was idling and I could SEE about 5 drops a second spitting out the back(not dripping, projectile spitting out), heaps of crap coming out!

Why is this? The gas system is only a month old and my first service is free so I booked that for next wednesday, would they fix it, is it just running too rich or something? Or will they only fix the gas side of it? It doesn't seem to have lost power, actually it's definitely gained power since the install of extractors/cat but it definitely wasn't spewing crap before they were installed...

edit: car is a '93 EB2 fairmont with just under 300,000kms on it haha. however it was driven by an old company executive(60 yr old) and has full ford dealer service history up to 250,000 so has had an easy life.

 

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1: Mum's car: ED XR6 wagon.zorst,stereo
2: My cars: Holden Monaro CV8-Z 2005. ls1 v8 :)
3: Nissan 180sx.sr20det, ~180rwkw.Lotsa mods,0-100 in 5.2secs.crashed into pole :(
4: EB2 Fairmont. 5spd,2.5" zorst,hi-flow cat,extractors,wade977b,j3, plus a 152dB 200psi train horn

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 8:35 am 
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Ok just sat car in driveway in neutral. Revved the engine and a s**t of clear liquid mixed with a bit of black s**t(looks like the crap thats coated on the exhaust inside) came out, when revving it actually spat about 1.5meters out the exhaust and made a little puddle, was a lot of liquid...happens on both petrol and gas however seems to be a fair bit worse on petrol. Car seems to be running fine though? WTF is wrong?

 

_________________

1: Mum's car: ED XR6 wagon.zorst,stereo
2: My cars: Holden Monaro CV8-Z 2005. ls1 v8 :)
3: Nissan 180sx.sr20det, ~180rwkw.Lotsa mods,0-100 in 5.2secs.crashed into pole :(
4: EB2 Fairmont. 5spd,2.5" zorst,hi-flow cat,extractors,wade977b,j3, plus a 152dB 200psi train horn

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 8:35 am 
Getting Side Ways
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Most probably carbon. Does it look powdery?

Your muffler may have had the internals shaken a bit whenth the headers were fitted.

I highly doubt it is tune related.

Only other thing I think of is piston rings.
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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 8:36 am 
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LTDHO wrote:
Most probably carbon. Does it look powdery?

Your muffler may have had the internals shaken a bit whenth the headers were fitted.

I highly doubt it is tune related.

Only other thing I think of is piston rings.

It's a clear liquid mixed with what looks like carbon bits. Doubt it's water cos I left the engine running a good 10 mins revving a lot to make sure and it was still coming out.

Also the muffler is only 2 weeks old, had a redback 2.5" done a couple weeks ago and extractors+cat are a few days old...

 

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1: Mum's car: ED XR6 wagon.zorst,stereo
2: My cars: Holden Monaro CV8-Z 2005. ls1 v8 :)
3: Nissan 180sx.sr20det, ~180rwkw.Lotsa mods,0-100 in 5.2secs.crashed into pole :(
4: EB2 Fairmont. 5spd,2.5" zorst,hi-flow cat,extractors,wade977b,j3, plus a 152dB 200psi train horn

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 8:52 am 
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its condensation and carbon. its nothing to worry about..
when you first start your car cold it runs rich, and you also have hot exhaust gas coming through a cold exhaust pipe. this causes condensation..
it will keep doing it untill the car gets to normal running temp and exhaust gets hot
most cars do it,
even more on lpg.
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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 9:46 am 
Getting Side Ways
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If you run a heap of injector cleaner and a heap of octane booster if burns your cat to pieces and it spits s**t out the exhaust like your talking about. my brother told me thats what he done with his old VK and it blew everything out of the cat

 

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 10:17 am 
Tyre Shredder
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try putting in a new oxegen sensor in the extractors
fixed this problem for me

 

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 10:32 am 
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jerrytorry wrote:
If you run a heap of injector cleaner and a heap of octane booster if burns your cat to pieces and it spits s**t out the exhaust like your talking about. my brother told me thats what he done with his old VK and it blew everything out of the cat


didnt know it done that to the cat..... (if anyone is looking to hollow out there cat im guessing this is the cheapest and easiest way 8-) )

but keeping on sublect my I6 does it when i first start it. does it still do it after you have gone for a drive????

 

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 10:34 am 
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jvangent wrote:
jerrytorry wrote:
If you run a heap of injector cleaner and a heap of octane booster if burns your cat to pieces and it spits s**t out the exhaust like your talking about. my brother told me thats what he done with his old VK and it blew everything out of the cat


didnt know it done that to the cat..... (if anyone is looking to hollow out there cat im guessing this is the cheapest and easiest way 8-) )

but keeping on sublect my I6 does it when i first start it. does it still do it after you have gone for a drive????

Damnit if I knew that before I wouldn't have spent money on a hi-flow lol.

But yeah it's still spewing after a drive, leaves a trail everywhere.

 

_________________

1: Mum's car: ED XR6 wagon.zorst,stereo
2: My cars: Holden Monaro CV8-Z 2005. ls1 v8 :)
3: Nissan 180sx.sr20det, ~180rwkw.Lotsa mods,0-100 in 5.2secs.crashed into pole :(
4: EB2 Fairmont. 5spd,2.5" zorst,hi-flow cat,extractors,wade977b,j3, plus a 152dB 200psi train horn

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 10:54 am 
Tyre Shredder
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Location: mackay
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oxegen sensor
they need replacing every 100000 k's
because its blocked it will be getting a bad signal nd bulk feeding your car fuel
probly getting bad fuel enconomy to?

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 11:09 am 
Getting Side Ways
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oh yea another thing, when i removed my cat out of my eb it used way more fuel so i unplugged the oxygen sensor and it use the average amount now. just another tip if you want to remove your cat totally

 

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 11:28 am 
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kelv_05ef_wagon wrote:
oxegen sensor
they need replacing every 100000 k's
because its blocked it will be getting a bad signal nd bulk feeding your car fuel
probly getting bad fuel enconomy to?

Horrible fuel economy, like ~16L/100km lol according to the trip computer

 

_________________

1: Mum's car: ED XR6 wagon.zorst,stereo
2: My cars: Holden Monaro CV8-Z 2005. ls1 v8 :)
3: Nissan 180sx.sr20det, ~180rwkw.Lotsa mods,0-100 in 5.2secs.crashed into pole :(
4: EB2 Fairmont. 5spd,2.5" zorst,hi-flow cat,extractors,wade977b,j3, plus a 152dB 200psi train horn

Top
 Profile  
 
 
 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 11:36 am 
Tyre Shredder
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hahaha yeh try oxegen sensor there only like 30 bucks for a bosch direct replacement

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 3:14 pm 
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i priced an oxygen sensor from repco and was quoted $117- where can ya get them for $30?
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 Post subject: Re: Car spewing black crap out of exhaust wtf?
Posted: Tue Feb 09, 2010 3:40 pm 
Tyre Shredder
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mackat spare parts but i did work there so i probly got a discount

 

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xb falcon 500: currently being striped for full respray
ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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