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Old 12-15-2013, 05:02 PM   #1
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More smoke from tailpipe

98 GT
After I got my catback on I noticed my passenger side tailpipe produce more smoke then my driver side tailpipe. Is it running rich? It's white smoke. Does it when it's cold and warmed up.
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Old 12-15-2013, 05:36 PM   #2
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Whiteish smoke usually means a coolant leak. But before I would jump to that conclusion, I would make sure its not something else. Do you notice any smells? Does it happen the entire time the car is on? Is yout coolant low?
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Old 12-15-2013, 05:37 PM   #3
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Coolant has been the same level since I got the car. Been wanting to get it flush but haven't got around it. When you first start the car, smokes more. After it warms up it's hardly any but if you give it gas, you can tell one pipe has more smoke coming out.
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Old 12-15-2013, 05:42 PM   #4
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Do you still see "smoke" after a spirited, ten minute or so, ride down the freeway?
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Old 12-15-2013, 05:43 PM   #5
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Haven't done that yet. Just noticed when I was gonna put my exhaust video on YouTube and saw smoke.
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Old 12-15-2013, 05:45 PM   #6
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I get that too, but it usually from condensation on cold days. Im not saying thats whats happening in your case, especially since you say it happens the entire time (albeit at different amoints). You might be able to pull the plugs from that side of the engine and see if they look odd. They can tell you a lot about whats going on inside the engine.
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Old 12-15-2013, 05:46 PM   #7
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Mine smokes a lot driving around town this time of the year. It stops after driving it at highway speeds though.
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Old 12-15-2013, 05:50 PM   #8
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Quote:
Originally Posted by straybullitt View Post
Do you still see "smoke" after a spirited, ten minute or so, ride down the freeway?
+1



I was under the impression you (the OP) were seeing this as well.

---------- Post added at 07:50 PM ---------- Previous post was at 07:48 PM ----------

Quote:
Originally Posted by XSlashDashX View Post
Haven't done that yet. Just noticed when I was gonna put my exhaust video on YouTube and saw smoke.
Do that, and if you still notice it, then we can trouble shoot at that point.
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Old 12-15-2013, 05:53 PM   #9
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Will do. Probably spark plugs? Own the car for only 6 months. I don't know if last owner changed them or not. Doubt it though.
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Old 12-15-2013, 05:55 PM   #10
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I just noticed the same white smoke on my car today, cold morning here in Texas ... Coolant level is ok tho, I was thinking maybe since We have no cats, all the smoke produced by the engine goes straight to the air,
Idk if the OP has a careless setup tho
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Old 12-15-2013, 06:00 PM   #11
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I was saying you can look at the tip of a spark plug and see how your car is running..ie rich, lean, maybe buring oil, etc..etc...

But take it for a spin before you do any of that. My money is on the cooler weather.
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Old 12-15-2013, 06:00 PM   #12
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Not yet, lol. Stock manifold and stock 6 catted h pipe with American thunder catback.
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Old 12-16-2013, 10:01 AM   #13
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Drove for about 30 minutes and it doesn't smoke when I sit at idle. After I turned the car off I saw smoke coming out the tips. Condensation?

---------- Post added at 10:01 AM ---------- Previous post was at 10:01 AM ----------

It's around 30-45 degrees here.
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Old 12-16-2013, 10:14 AM   #14
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Does it look like this ?

Sorry not the greatest pic
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Old 12-16-2013, 10:15 AM   #15
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Yep. That's normal.
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Old 12-16-2013, 10:20 AM   #16
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Quote:
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Does it look like this ?

Sorry not the greatest pic
Off topic but, I have to say I've never been much for yellow on cars, but that blacked tail lights and the deeper yellow looks really good. The fact its a Mach doesn't hurt either!
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Old 12-16-2013, 11:18 AM   #17
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Quote:
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Off topic but, I have to say I've never been much for yellow on cars, but that blacked tail lights and the deeper yellow looks really good. The fact its a Mach doesn't hurt either!
Thanks!
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Old 12-16-2013, 11:22 AM   #18
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Maybe it was just the manufacturing oil in the new exhaust pipes. After a sprited run, it burns out. Most new exhaust pipes will have an oily residue in the inner pipes.
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Old 12-16-2013, 12:36 PM   #19
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I hope so, haha. Got worried.

I love yellow mustangs. Wish mine was yellow. Makes me miss my Zinc Yellow Stang.
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Old 12-17-2013, 02:41 AM   #20
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Here's the video of what it does.
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Old 12-17-2013, 08:10 AM   #21
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Quote:
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Sounds good man. Was the video of a start up on a cold engine? Did you take it out for a long drive and still notice a lot of smoke after? I'm thinking its just the cold, stragner things have happened.....
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Old 12-17-2013, 10:40 AM   #22
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I would guess that you might have an unbalanced exhaust. If you have true dual pipes from the header then there is an issue on the right side. Most likely you have an x or h pipe. A small exhaust leak or a more restrictive flow on the left side would cause most of the exhaust to flow out at the right pipe. As far as the smoke, looks more like cold start in a cold day. Normal. In my opinion.
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