my cobra been sit for a long time . Rarely drive it . If it get drive . It just 15-20 min local drive . Also last time I gas it up was 4-5 month ago . Anyway I went out and start the car move to another spot and shut it down . Couple hours later , went back and start it up . It pup a big white smoke for 2 sec then it stop . It’s was a little cool out side . Old gas ? Coolant is full
Pup a white smoke at start up
- Thread starter BADBOYSVT
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Condensation in the exhaust building up maybe? Or maybe the head gaskets are starting to let go?
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I'd say condensation in the exhaust. Especially with the short run times. Take it out and let it get warm. When was the last time you changed the oil?
Sounds exactly like valve stem seals. Cheap to buy replacements. I recently did mine, not a bad job but shops want top dollar for their time.
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A year and 2 month . Mobil 1 5w30 and Mobil 1 oil filter under 200 miles on oil .
I just went out , pull the car cover off and start the car . Little cool out side . I stay and watch the steam smoke from normal start to time my engine fan kick it . Around 10 min idle . At 15 min idle . There is zero steam coming out exhaust . I guess it’s just a lot condensation build up in the exhaust and I need take it on the highway and doing couple pull .
My friend told me to add some high octain booster and doing couple hard pull to clean all that stuff from engine for let it sat too long, he say it will be some white smoke on first hard pull . That just stuff from engine for let it sat too long .
Mabe another day , for now the cover back on . I might need change the oil and put some fresh gas in it
My friend told me to add some high octain booster and doing couple hard pull to clean all that stuff from engine for let it sat too long, he say it will be some white smoke on first hard pull . That just stuff from engine for let it sat too long .
Mabe another day , for now the cover back on . I might need change the oil and put some fresh gas in it
This. Don't ever do hard pulls with old gas.
My opinion....just tossing in a can of junky octane booster and flogging on the car is horrible advice. There's a high likelihood 5 month old E10 gas is bad by now, there is no fixing it. Sounds like the last fill up was early summer.....that's a loooong time for gas to sit thru a hot n humid Houston summer.
Drain the tank, new gas, new plugs, new fuel filter, oil change....then see how she runs "cautiously". Get a datalogger on the car. If it's still smoking, something more serious is probably wrong. Could be the valve stem seals as rymax mentioned. Probably not a bad idea to get a compression test.
Good luck
Drain the tank, new gas, new plugs, new fuel filter, oil change....then see how she runs "cautiously". Get a datalogger on the car. If it's still smoking, something more serious is probably wrong. Could be the valve stem seals as rymax mentioned. Probably not a bad idea to get a compression test.
Good luck
Its not a fun job. The rear ones are almost impossible.
lol
Haven’t even started mine in 6 months or so. Gonna pull it out this weekend and wash it. It’s filthy.
Haven’t even started mine in 6 months or so. Gonna pull it out this weekend and wash it. It’s filthy.
Not , repeat , not valve stem seals .
You started it , moved it , shut it off , then restarted it later .
Condensation in the exhaust.
You started it , moved it , shut it off , then restarted it later .
Condensation in the exhaust.
That what my gut tell me . How long you have to drive to clear up condensation ?
Engine and drivetrain need to be brought up to full temperature each time you start the car , or you will shorten the life .
How long it takes is dependant on many factors.
I dont drive my car less than 30 miles , as that is how far it is to town .
Just because the e gine has reached temperature , say while idling , the exhaust can quite possibly still not be hot enough to burn off the condensation in that system , and it will eventually damage the exhaust system .
How long it takes is dependant on many factors.
I dont drive my car less than 30 miles , as that is how far it is to town .
Just because the e gine has reached temperature , say while idling , the exhaust can quite possibly still not be hot enough to burn off the condensation in that system , and it will eventually damage the exhaust system .
My honda lawn mower smokes on start up for a while with 5 month old gas....get some fresh gas no smoke at all.
No big gamble, the good news is if it does end up being the phase separated fuel in that tank, and the twin screwed 18psi motor implodes trying to run that tank out WOT....there's plenty of threads and advice here about rebuilds.
No big gamble, the good news is if it does end up being the phase separated fuel in that tank, and the twin screwed 18psi motor implodes trying to run that tank out WOT....there's plenty of threads and advice here about rebuilds.
When the valve guide seals go and the car sits for a while oil drips down into combustion chamber = start up smoking. colored blue smoke goes away after a minute.
White smoke is probably condensation. Get new gas before you go wot
2004 Cobra 2.9 Whipple
White smoke is probably condensation. Get new gas before you go wot
2004 Cobra 2.9 Whipple
You can drain the gas or just stay out of boost until you refill with fresh stuff.
My car is now stored for the winter, could be 5-6 months before I take it out. I'll use up the gas, but drive normal, zero boost.
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My car is now stored for the winter, could be 5-6 months before I take it out. I'll use up the gas, but drive normal, zero boost.
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What does it smell like? Oil? Gas? Steam? That's the biggest hint. Could be all 3 or just condensation. Sounds like you need to go for a drive and empty the tank. Besides, a nice drive is good for the sole
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