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Old 08-19-2003, 01:22 PM   #1
timjoh
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Question smoke on start-up? 2003 WRX

My 2003 WRX has been parked in front of my house for the last 2 1/2 months while I was travelling out west. When I came back, I got a fair amount of black smoke on start-up.

Since the smoke is black, I'm assuming fuel, and since the car has been parked on a hill, I'm assuming that unburnt fuel somehow went where gravity took it.

I didn't think much of it until I came back to the car on the second day and it did it again. It was still parked on the hill, so I haven't ruled out that factor, but it still seems odd.

Any thoughts? The car is virtually unmodded (K&N, shifter bushings) and has 12k miles on it. I'll leave it in the driveway tonight to see if a level surface helps, but am at a loss otherwise. I guess this is the joy of having a warranty. If I can't figure it out, I drop it off and make them work on it.

Thanks,

Tim Johnson
2003 WRX - silver
Arlington, VA
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Old 08-19-2003, 02:13 PM   #2
Karl
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You need an Italian tuneup!!
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Old 08-19-2003, 03:04 PM   #3
timjoh
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Default Hmmm?

Does that mean I have to tune it up the same way I broke it in? I.e., drive it like you stole it? Or does that mean I have to stick a Genoa salami up the tailpipe so I can't see the smoke?

Inquiring minds want to know.

Tim
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Old 08-19-2003, 05:21 PM   #4
Karl
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Alright all kidding aside...
How much smoke are you talking about here, and does it eventually go away?
And how much have you driven it since you come home? Have you got your car fully warmed up before you turn it off and let it sit around?
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Old 08-19-2003, 07:46 PM   #5
heffergm
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WR Blue Pearl

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You should have changed the oil when you got home. It'll absorb moisture while sitting for that long... moisture that's normally burnt off when you drive the car.

I'd suggest changing the oil, and seeing what happens. If you'd rather not, go on a long hard drive... should get the moisture out, and blow any thats accumulated in the exhaust out as well. Go from there.
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Old 08-20-2003, 02:28 AM   #6
jlevy
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Did you have any stabilizer in the gas? if not, bad gas and/or dirty injectors may be part of the problem.

-my 0.02
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Old 08-21-2003, 09:10 AM   #7
timjoh
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Default Problem fixed

The problem seems to have self-resolved. After being parked on a level surface overnight, I haven't had any smoke at all for two days. The smoke had only been on startup and went away immediately after one good puff. As the smoke was black, I was pretty sure we were looking at a fuel issue rather than an oil issue (oil smoke should be blue, I think).

No CEL, oil looks good, all is right with the world.

Thanks for everyone's suggestions,

Tim
2003 WRX
Arlington, VA
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