Brown smoke during heavy excelleration

G

GTOreturns

Well-Known Member

Oct 1, 2003

51

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59

West Coast Best Coast

Oct 3, 2006

#1

• Oct 3, 2006

• #1

It a 93 LX with appx 140,000 miles on a stock motor cept for T-Moss/Thumper combo. I was going on the highway today and punched it out to get on. There was heavy brown smoke coming out the back, I looked like a crop duster! Its done it for a while. My smog pump isnt hooked up to the x pipe, its just pumping out air at the bottom. WTF?? Brown smoke?

Any help would be greatly appreciated. Thanks!

 

bullitstang1313

Member

Jan 21, 2003

713

0

16

Indianapolis / Columbus, Indiana

Oct 3, 2006

#2

• Oct 3, 2006

• #2

White smoke usually equals coolant burning, blue smoke usually equals oil burning, black smoke usually equals too much fuel burning, but I've never heard of brown smoke before.

 

G

GTOreturns

Well-Known Member

Oct 1, 2003

51

17

59

West Coast Best Coast

Oct 3, 2006

#3

• Oct 3, 2006

• #3

anyone? Hissin? Daggar?

 

gcwh02

New Member

Jun 20, 2005

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pottstown, PA

Oct 3, 2006

#4

• Oct 3, 2006

• #4

are you sure its not a blackish smoke?

 

G

GTOreturns

Well-Known Member

Oct 1, 2003

51

17

59

West Coast Best Coast

Oct 3, 2006

#5

• Oct 3, 2006

• #5

gcwh02 said:

are you sure its not a blackish smoke?

Click to expand...

yeah its dirty brown. I had to let off the gas,it was reallll bad!

 

68torinogt

Hey guys, guess what--I have a bi-pass!!!

Mar 21, 2006

0

0

53

Welcome my son, welcome to the machine

Oct 3, 2006

#6

• Oct 3, 2006

• #6

have you run injector cleaner through it yet? and ill bet you have some carbon buildup

 

bynummustang

Seen my other Jackstand?

Jul 24, 2005

1

2

69

NC State University

Oct 3, 2006

#7

• Oct 3, 2006

• #7

Your car is taking a poop.








I have no clue on brown smoke.

 

68torinogt

Hey guys, guess what--I have a bi-pass!!!

Mar 21, 2006

0

0

53

Welcome my son, welcome to the machine

Oct 3, 2006

#8

• Oct 3, 2006

• #8

its probably black that looks brown, i say this needs to be diagnosed like black smoke and do a tune up and check the ingnition system

 

bynummustang

Seen my other Jackstand?

Jul 24, 2005

1

2

69

NC State University

Oct 3, 2006

#9

• Oct 3, 2006

• #9

Check plugs, see how they look, and report back.

 

spiff

Member

Aug 7, 2006

17

0

6

Canada

Oct 3, 2006

#10

• Oct 3, 2006

• #10

Are you sure it wasn't just dust? If you have an o/r pipe it will kick up a bit, especially if you have dumps haha

 

G

GTOreturns

Well-Known Member

Oct 1, 2003

51

17

59

West Coast Best Coast

Oct 3, 2006

#11

• Oct 3, 2006

• #11

The plugs have 30,000 miles on them, its got a screamin demon ign system, the fuel pressure is down to 33psi, like I said, its been doing it for a long time. And I have cats on it!! I keep the fuel pressure this low in the warm months cause it runs faster like this. Im stumped!

 

68torinogt

Hey guys, guess what--I have a bi-pass!!!

Mar 21, 2006

0

0

53

Welcome my son, welcome to the machine

Oct 3, 2006

#12

• Oct 3, 2006

• #12

is that the only thing you notice is the smoke?

 

Darkwriter77

Resident Ranting Negative Nancy

5 Year Member

Jul 1, 2005

314

281

134

Apache Junction, AZ

Oct 4, 2006

#13

• Oct 4, 2006

• #13

You're burning dirt.

Seriously, though, it might be a combination of burning BOTH oil and coolant that's leaking into the combustion chamber - head or intake gasket, mayhaps? I dunno, trying to think of anything else that would cause that color of smoke...

 

G

GTOreturns

Well-Known Member

Oct 1, 2003

51

17

59

West Coast Best Coast

Oct 4, 2006

#14

• Oct 4, 2006

• #14

I never did retorque my intake!